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Every Cummins engine fault code in our verified reference — 500 codes, 483 of them with a documented remedy. Find your code in the table, read the likely causes, then work the remedy. If it is beyond a field fix, our workshop in Embakasi repairs Cummins controllers and engines at board level.
Covers: ISX Series · QSB Series · QSC Series · QSK Series · QSL Series · QSM Series
| Code | Fault | Likely cause | Remedy |
|---|---|---|---|
| E2001 | Low Fuel Rail Pressure | Clogged filter; weak transfer pump; air in lines | Replace filter; test pump; bleed fuel system |
| E2002 | High Fuel Rail Pressure | Injector leak; pressure relief valve stuck | Inspect injectors; replace relief valve; recalibrate ECM |
| E2003 | Fuel Temperature High | Return fuel overheated; cooling failure | Check fuel cooler; replace lines; verify cooling circuit |
| E2004 | Fuel Injector Fault | Open/short circuit; injector internal failure | Replace faulty injector; check harness; test ECM driver |
| E2005 | Coolant Temperature High | Low coolant; blocked radiator; water pump failure; Top coolant | flush radiator; test/replace pump |
| E2006 | Coolant Temperature Low | Thermostat stuck open; sensor fault | Replace thermostat; test sensor |
| E2007 | Coolant Level Low | Leak in hoses or radiator; expansion tank issue; pressure test | Inspect hoses; repair leak |
| E2008 | Oil Pressure Low | Oil leak; worn oil pump; low oil level; Top oil | test/replace oil pump; inspect for leaks |
| E2009 | Oil Pressure High | Blocked oil passage; faulty pressure regulator | Flush oil galleries; replace regulator |
| E2010 | Oil Temperature High | Blocked oil cooler; low oil level; top oil | Clean/replace oil cooler |
| E2011 | Turbo Boost Low | Air hose leak; turbo wear; actuator fault | Replace hose; service turbo; calibrate actuator |
| E2012 | Turbo Overspeed | ECM miscalibration; faulty actuator | Update ECM software; reset actuator |
| E2013 | Air Filter Restriction | Clogged air filter | Replace air filter; inspect intake |
| E2014 | Crankshaft Position Sensor Fault | Sensor damaged; wiring short | Replace sensor; check wiring harness |
| E2015 | Camshaft Position Sensor Fault | Loose timing; failed sensor | Reset timing; replace sensor |
| E2016 | Manifold Pressure Sensor Fault | Short circuit; contamination | Clean/replace sensor; test wiring |
| E2017 | Exhaust Temperature High | Over-fueling; blocked DPF; restricted exhaust | Check injectors; clean/replace DPF; inspect exhaust |
| E2018 | EGR Valve Fault | Carbon buildup; valve stuck | Clean or replace EGR valve |
| E2019 | DPF High Soot Load | Failed regeneration; excessive idling; Perform forced regen | check sensors |
| E2020 | Alternator Under Voltage | Loose belt; alternator fault | Tighten belt; replace alternator |
| E2021 | Alternator Over Voltage | Faulty regulator | Replace regulator/alternator |
| E2022 | ECM Power Supply Fault | Loose battery cables; blown fuse | Tighten cables; replace fuse |
| E2023 | ECM Internal Memory Error | Corrupted ECM software; Reflash ECM with OEM tool | — |
| E2024 | CAN Communication Loss - ECM to Panel | Broken CAN wiring; ECM fault | Inspect wiring; test ECM |
| E2025 | CAN Communication Loss - ECM to Governor | Governor module failure | Replace governor; test wiring |
| E2026 | Engine Overspeed Shutdown | Fuel rack stuck; governor failure | Inspect governor; recalibrate fuel system |
| E2027 | Engine Underspeed | Low fuel delivery; clogged filters | Replace filters; test fuel delivery |
| E2028 | Low Fuel Rail Pressure | Clogged filter; weak transfer pump; air in lines | Replace filter; test pump; bleed fuel system |
| E2029 | High Fuel Rail Pressure | Injector leak; pressure relief valve stuck | Inspect injectors; replace relief valve; recalibrate ECM |
| E2030 | Fuel Temperature High | Return fuel overheated; cooling failure | Check fuel cooler; replace lines; verify cooling circuit |
| E2031 | Fuel Injector Fault | Open/short circuit; injector internal failure | Replace faulty injector; check harness; test ECM driver |
| E2032 | Coolant Temperature High | Low coolant; blocked radiator; water pump failure; Top coolant | flush radiator; test/replace pump |
| E2033 | Coolant Temperature Low | Thermostat stuck open; sensor fault | Replace thermostat; test sensor |
| E2034 | Coolant Level Low | Leak in hoses or radiator; expansion tank issue; pressure test | Inspect hoses; repair leak |
| E2035 | Oil Pressure Low | Oil leak; worn oil pump; low oil level; Top oil | test/replace oil pump; inspect for leaks |
| E2036 | Oil Pressure High | Blocked oil passage; faulty pressure regulator | Flush oil galleries; replace regulator |
| E2037 | Oil Temperature High | Blocked oil cooler; low oil level; top oil | Clean/replace oil cooler |
| E2038 | Turbo Boost Low | Air hose leak; turbo wear; actuator fault | Replace hose; service turbo; calibrate actuator |
| E2039 | Turbo Overspeed | ECM miscalibration; faulty actuator | Update ECM software; reset actuator |
| E2040 | Air Filter Restriction | Clogged air filter | Replace air filter; inspect intake |
| E2041 | Crankshaft Position Sensor Fault | Sensor damaged; wiring short | Replace sensor; check wiring harness |
| E2042 | Camshaft Position Sensor Fault | Loose timing; failed sensor | Reset timing; replace sensor |
| E2043 | Manifold Pressure Sensor Fault | Short circuit; contamination | Clean/replace sensor; test wiring |
| E2044 | Exhaust Temperature High | Over-fueling; blocked DPF; restricted exhaust | Check injectors; clean/replace DPF; inspect exhaust |
| E2045 | EGR Valve Fault | Carbon buildup; valve stuck | Clean or replace EGR valve |
| E2046 | DPF High Soot Load | Failed regeneration; excessive idling; Perform forced regen | check sensors |
| E2047 | Alternator Under Voltage | Loose belt; alternator fault | Tighten belt; replace alternator |
| E2048 | Alternator Over Voltage | Faulty regulator | Replace regulator/alternator |
| E2049 | ECM Power Supply Fault | Loose battery cables; blown fuse | Tighten cables; replace fuse |
| E2050 | ECM Internal Memory Error | Corrupted ECM software; Reflash ECM with OEM tool | — |
| E2051 | CAN Communication Loss - ECM to Panel | Broken CAN wiring; ECM fault | Inspect wiring; test ECM |
| E2052 | CAN Communication Loss - ECM to Governor | Governor module failure | Replace governor; test wiring |
| E2053 | Engine Overspeed Shutdown | Fuel rack stuck; governor failure | Inspect governor; recalibrate fuel system |
| E2054 | Engine Underspeed | Low fuel delivery; clogged filters | Replace filters; test fuel delivery |
| E2055 | Low Fuel Rail Pressure | Clogged filter; weak transfer pump; air in lines | Replace filter; test pump; bleed fuel system |
| E2056 | High Fuel Rail Pressure | Injector leak; pressure relief valve stuck | Inspect injectors; replace relief valve; recalibrate ECM |
| E2057 | Fuel Temperature High | Return fuel overheated; cooling failure | Check fuel cooler; replace lines; verify cooling circuit |
| E2058 | Fuel Injector Fault | Open/short circuit; injector internal failure | Replace faulty injector; check harness; test ECM driver |
| E2059 | Coolant Temperature High | Low coolant; blocked radiator; water pump failure; Top coolant | flush radiator; test/replace pump |
| E2060 | Coolant Temperature Low | Thermostat stuck open; sensor fault | Replace thermostat; test sensor |
| E2061 | Coolant Level Low | Leak in hoses or radiator; expansion tank issue; pressure test | Inspect hoses; repair leak |
| E2062 | Oil Pressure Low | Oil leak; worn oil pump; low oil level; Top oil | test/replace oil pump; inspect for leaks |
| E2063 | Oil Pressure High | Blocked oil passage; faulty pressure regulator | Flush oil galleries; replace regulator |
| E2064 | Oil Temperature High | Blocked oil cooler; low oil level; top oil | Clean/replace oil cooler |
| E2065 | Turbo Boost Low | Air hose leak; turbo wear; actuator fault | Replace hose; service turbo; calibrate actuator |
| E2066 | Turbo Overspeed | ECM miscalibration; faulty actuator | Update ECM software; reset actuator |
| E2067 | Air Filter Restriction | Clogged air filter | Replace air filter; inspect intake |
| E2068 | Crankshaft Position Sensor Fault | Sensor damaged; wiring short | Replace sensor; check wiring harness |
| E2069 | Camshaft Position Sensor Fault | Loose timing; failed sensor | Reset timing; replace sensor |
| E2070 | Manifold Pressure Sensor Fault | Short circuit; contamination | Clean/replace sensor; test wiring |
| E2071 | Exhaust Temperature High | Over-fueling; blocked DPF; restricted exhaust | Check injectors; clean/replace DPF; inspect exhaust |
| E2072 | EGR Valve Fault | Carbon buildup; valve stuck | Clean or replace EGR valve |
| E2073 | DPF High Soot Load | Failed regeneration; excessive idling; Perform forced regen | check sensors |
| E2074 | Alternator Under Voltage | Loose belt; alternator fault | Tighten belt; replace alternator |
| E2075 | Alternator Over Voltage | Faulty regulator | Replace regulator/alternator |
| E2076 | ECM Power Supply Fault | Loose battery cables; blown fuse | Tighten cables; replace fuse |
| E2077 | ECM Internal Memory Error | Corrupted ECM software; Reflash ECM with OEM tool | — |
| E2078 | CAN Communication Loss - ECM to Panel | Broken CAN wiring; ECM fault | Inspect wiring; test ECM |
| E2079 | CAN Communication Loss - ECM to Governor | Governor module failure | Replace governor; test wiring |
| E2080 | Engine Overspeed Shutdown | Fuel rack stuck; governor failure | Inspect governor; recalibrate fuel system |
| E2081 | Engine Underspeed | Low fuel delivery; clogged filters | Replace filters; test fuel delivery |
| E2082 | Low Fuel Rail Pressure | Clogged filter; weak transfer pump; air in lines | Replace filter; test pump; bleed fuel system |
| E2083 | High Fuel Rail Pressure | Injector leak; pressure relief valve stuck | Inspect injectors; replace relief valve; recalibrate ECM |
| E2084 | Fuel Temperature High | Return fuel overheated; cooling failure | Check fuel cooler; replace lines; verify cooling circuit |
| E2085 | Fuel Injector Fault | Open/short circuit; injector internal failure | Replace faulty injector; check harness; test ECM driver |
| E2086 | Coolant Temperature High | Low coolant; blocked radiator; water pump failure; Top coolant | flush radiator; test/replace pump |
| E2087 | Coolant Temperature Low | Thermostat stuck open; sensor fault | Replace thermostat; test sensor |
| E2088 | Coolant Level Low | Leak in hoses or radiator; expansion tank issue; pressure test | Inspect hoses; repair leak |
| E2089 | Oil Pressure Low | Oil leak; worn oil pump; low oil level; Top oil | test/replace oil pump; inspect for leaks |
| E2090 | Oil Pressure High | Blocked oil passage; faulty pressure regulator | Flush oil galleries; replace regulator |
| E2091 | Oil Temperature High | Blocked oil cooler; low oil level; top oil | Clean/replace oil cooler |
| E2092 | Turbo Boost Low | Air hose leak; turbo wear; actuator fault | Replace hose; service turbo; calibrate actuator |
| E2093 | Turbo Overspeed | ECM miscalibration; faulty actuator | Update ECM software; reset actuator |
| E2094 | Air Filter Restriction | Clogged air filter | Replace air filter; inspect intake |
| E2095 | Crankshaft Position Sensor Fault | Sensor damaged; wiring short | Replace sensor; check wiring harness |
| E2096 | Camshaft Position Sensor Fault | Loose timing; failed sensor | Reset timing; replace sensor |
| E2097 | Manifold Pressure Sensor Fault | Short circuit; contamination | Clean/replace sensor; test wiring |
| E2098 | Exhaust Temperature High | Over-fueling; blocked DPF; restricted exhaust | Check injectors; clean/replace DPF; inspect exhaust |
| E2099 | EGR Valve Fault | Carbon buildup; valve stuck | Clean or replace EGR valve |
| E2100 | DPF High Soot Load | Failed regeneration; excessive idling; Perform forced regen | check sensors |
| E2101 | Low Fuel Rail Pressure | Clogged filter; weak transfer pump; air in lines | Replace filter; test pump; bleed fuel system |
| E2102 | High Fuel Rail Pressure | Injector leak; pressure relief valve stuck | Inspect injectors; replace relief valve; recalibrate ECM |
| E2103 | Fuel Temperature High | Return fuel overheated; cooling failure | Check fuel cooler; replace lines; verify cooling circuit |
| E2104 | Fuel Injector Fault | Open/short circuit; injector internal failure | Replace faulty injector; check harness; test ECM driver |
| E2105 | Coolant Temperature High | Low coolant; blocked radiator; water pump failure; Top coolant | flush radiator; test/replace pump |
| E2106 | Coolant Temperature Low | Thermostat stuck open; sensor fault | Replace thermostat; test sensor |
| E2107 | Coolant Level Low | Leak in hoses or radiator; expansion tank issue; pressure test | Inspect hoses; repair leak |
| E2108 | Oil Pressure Low | Oil leak; worn oil pump; low oil level; Top oil | test/replace oil pump; inspect for leaks |
| E2109 | Oil Pressure High | Blocked oil passage; faulty pressure regulator | Flush oil galleries; replace regulator |
| E2110 | Oil Temperature High | Blocked oil cooler; low oil level; top oil | Clean/replace oil cooler |
| E2111 | Turbo Boost Low | Air hose leak; turbo wear; actuator fault | Replace hose; service turbo; calibrate actuator |
| E2112 | Turbo Overspeed | ECM miscalibration; faulty actuator | Update ECM software; reset actuator |
| E2113 | Air Filter Restriction | Clogged air filter | Replace air filter; inspect intake |
| E2114 | Crankshaft Position Sensor Fault | Sensor damaged; wiring short | Replace sensor; check wiring harness |
| E2115 | Camshaft Position Sensor Fault | Loose timing; failed sensor | Reset timing; replace sensor |
| E2116 | Manifold Pressure Sensor Fault | Short circuit; contamination | Clean/replace sensor; test wiring |
| E2117 | Exhaust Temperature High | Over-fueling; blocked DPF; restricted exhaust | Check injectors; clean/replace DPF; inspect exhaust |
| E2118 | EGR Valve Fault | Carbon buildup; valve stuck | Clean or replace EGR valve |
| E2119 | DPF High Soot Load | Failed regeneration; excessive idling; Perform forced regen | check sensors |
| E2120 | Alternator Under Voltage | Loose belt; alternator fault | Tighten belt; replace alternator |
| E2121 | Alternator Over Voltage | Faulty regulator | Replace regulator/alternator |
| E2122 | ECM Power Supply Fault | Loose battery cables; blown fuse | Tighten cables; replace fuse |
| E2123 | ECM Internal Memory Error | Corrupted ECM software; Reflash ECM with OEM tool | — |
| E2124 | CAN Communication Loss - ECM to Panel | Broken CAN wiring; ECM fault | Inspect wiring; test ECM |
| E2125 | CAN Communication Loss - ECM to Governor | Governor module failure | Replace governor; test wiring |
| E2126 | Engine Overspeed Shutdown | Fuel rack stuck; governor failure | Inspect governor; recalibrate fuel system |
| E2127 | Engine Underspeed | Low fuel delivery; clogged filters | Replace filters; test fuel delivery |
| E2128 | Low Fuel Rail Pressure | Clogged filter; weak transfer pump; air in lines | Replace filter; test pump; bleed fuel system |
| E2129 | High Fuel Rail Pressure | Injector leak; pressure relief valve stuck | Inspect injectors; replace relief valve; recalibrate ECM |
| E2130 | Fuel Temperature High | Return fuel overheated; cooling failure | Check fuel cooler; replace lines; verify cooling circuit |
| E2131 | Fuel Injector Fault | Open/short circuit; injector internal failure | Replace faulty injector; check harness; test ECM driver |
| E2132 | Coolant Temperature High | Low coolant; blocked radiator; water pump failure; Top coolant | flush radiator; test/replace pump |
| E2133 | Coolant Temperature Low | Thermostat stuck open; sensor fault | Replace thermostat; test sensor |
| E2134 | Coolant Level Low | Leak in hoses or radiator; expansion tank issue; pressure test | Inspect hoses; repair leak |
| E2135 | Oil Pressure Low | Oil leak; worn oil pump; low oil level; Top oil | test/replace oil pump; inspect for leaks |
| E2136 | Oil Pressure High | Blocked oil passage; faulty pressure regulator | Flush oil galleries; replace regulator |
| E2137 | Oil Temperature High | Blocked oil cooler; low oil level; top oil | Clean/replace oil cooler |
| E2138 | Turbo Boost Low | Air hose leak; turbo wear; actuator fault | Replace hose; service turbo; calibrate actuator |
| E2139 | Turbo Overspeed | ECM miscalibration; faulty actuator | Update ECM software; reset actuator |
| E2140 | Air Filter Restriction | Clogged air filter | Replace air filter; inspect intake |
| E2141 | Crankshaft Position Sensor Fault | Sensor damaged; wiring short | Replace sensor; check wiring harness |
| E2142 | Camshaft Position Sensor Fault | Loose timing; failed sensor | Reset timing; replace sensor |
| E2143 | Manifold Pressure Sensor Fault | Short circuit; contamination | Clean/replace sensor; test wiring |
| E2144 | Exhaust Temperature High | Over-fueling; blocked DPF; restricted exhaust | Check injectors; clean/replace DPF; inspect exhaust |
| E2145 | EGR Valve Fault | Carbon buildup; valve stuck | Clean or replace EGR valve |
| E2146 | DPF High Soot Load | Failed regeneration; excessive idling; Perform forced regen | check sensors |
| E2147 | Alternator Under Voltage | Loose belt; alternator fault | Tighten belt; replace alternator |
| E2148 | Alternator Over Voltage | Faulty regulator | Replace regulator/alternator |
| E2149 | ECM Power Supply Fault | Loose battery cables; blown fuse | Tighten cables; replace fuse |
| E2150 | ECM Internal Memory Error | Corrupted ECM software; Reflash ECM with OEM tool | — |
| E2151 | CAN Communication Loss - ECM to Panel | Broken CAN wiring; ECM fault | Inspect wiring; test ECM |
| E2152 | CAN Communication Loss - ECM to Governor | Governor module failure | Replace governor; test wiring |
| E2153 | Engine Overspeed Shutdown | Fuel rack stuck; governor failure | Inspect governor; recalibrate fuel system |
| E2154 | Engine Underspeed | Low fuel delivery; clogged filters | Replace filters; test fuel delivery |
| E2155 | Low Fuel Rail Pressure | Clogged filter; weak transfer pump; air in lines | Replace filter; test pump; bleed fuel system |
| E2156 | High Fuel Rail Pressure | Injector leak; pressure relief valve stuck | Inspect injectors; replace relief valve; recalibrate ECM |
| E2157 | Fuel Temperature High | Return fuel overheated; cooling failure | Check fuel cooler; replace lines; verify cooling circuit |
| E2158 | Fuel Injector Fault | Open/short circuit; injector internal failure | Replace faulty injector; check harness; test ECM driver |
| E2159 | Coolant Temperature High | Low coolant; blocked radiator; water pump failure; Top coolant | flush radiator; test/replace pump |
| E2160 | Coolant Temperature Low | Thermostat stuck open; sensor fault | Replace thermostat; test sensor |
| E2161 | Coolant Level Low | Leak in hoses or radiator; expansion tank issue; pressure test | Inspect hoses; repair leak |
| E2162 | Oil Pressure Low | Oil leak; worn oil pump; low oil level; Top oil | test/replace oil pump; inspect for leaks |
| E2163 | Oil Pressure High | Blocked oil passage; faulty pressure regulator | Flush oil galleries; replace regulator |
| E2164 | Oil Temperature High | Blocked oil cooler; low oil level; top oil | Clean/replace oil cooler |
| E2165 | Turbo Boost Low | Air hose leak; turbo wear; actuator fault | Replace hose; service turbo; calibrate actuator |
| E2166 | Turbo Overspeed | ECM miscalibration; faulty actuator | Update ECM software; reset actuator |
| E2167 | Air Filter Restriction | Clogged air filter | Replace air filter; inspect intake |
| E2168 | Crankshaft Position Sensor Fault | Sensor damaged; wiring short | Replace sensor; check wiring harness |
| E2169 | Camshaft Position Sensor Fault | Loose timing; failed sensor | Reset timing; replace sensor |
| E2170 | Manifold Pressure Sensor Fault | Short circuit; contamination | Clean/replace sensor; test wiring |
| E2171 | Exhaust Temperature High | Over-fueling; blocked DPF; restricted exhaust | Check injectors; clean/replace DPF; inspect exhaust |
| E2172 | EGR Valve Fault | Carbon buildup; valve stuck | Clean or replace EGR valve |
| E2173 | DPF High Soot Load | Failed regeneration; excessive idling; Perform forced regen | check sensors |
| E2174 | Alternator Under Voltage | Loose belt; alternator fault | Tighten belt; replace alternator |
| E2175 | Alternator Over Voltage | Faulty regulator | Replace regulator/alternator |
| E2176 | ECM Power Supply Fault | Loose battery cables; blown fuse | Tighten cables; replace fuse |
| E2177 | ECM Internal Memory Error | Corrupted ECM software; Reflash ECM with OEM tool | — |
| E2178 | CAN Communication Loss - ECM to Panel | Broken CAN wiring; ECM fault | Inspect wiring; test ECM |
| E2179 | CAN Communication Loss - ECM to Governor | Governor module failure | Replace governor; test wiring |
| E2180 | Engine Overspeed Shutdown | Fuel rack stuck; governor failure | Inspect governor; recalibrate fuel system |
| E2181 | Low Fuel Rail Pressure | Clogged filter; weak transfer pump; air in lines | Replace filter; test pump; bleed fuel system |
| E2182 | High Fuel Rail Pressure | Injector leak; pressure relief valve stuck | Inspect injectors; replace relief valve; recalibrate ECM |
| E2183 | Fuel Temperature High | Return fuel overheated; cooling failure | Check fuel cooler; replace lines; verify cooling circuit |
| E2184 | Fuel Injector Fault | Open/short circuit; injector internal failure | Replace faulty injector; check harness; test ECM driver |
| E2185 | Coolant Temperature High | Low coolant; blocked radiator; water pump failure; Top coolant | flush radiator; test/replace pump |
| E2186 | Coolant Temperature Low | Thermostat stuck open; sensor fault | Replace thermostat; test sensor |
| E2187 | Coolant Level Low | Leak in hoses or radiator; expansion tank issue; pressure test | Inspect hoses; repair leak |
| E2188 | Oil Pressure Low | Oil leak; worn oil pump; low oil level; Top oil | test/replace oil pump; inspect for leaks |
| E2189 | Oil Pressure High | Blocked oil passage; faulty pressure regulator | Flush oil galleries; replace regulator |
| E2190 | Oil Temperature High | Blocked oil cooler; low oil level; top oil | Clean/replace oil cooler |
| E2191 | Turbo Boost Low | Air hose leak; turbo wear; actuator fault | Replace hose; service turbo; calibrate actuator |
| E2192 | Turbo Overspeed | ECM miscalibration; faulty actuator | Update ECM software; reset actuator |
| E2193 | Air Filter Restriction | Clogged air filter | Replace air filter; inspect intake |
| E2194 | Crankshaft Position Sensor Fault | Sensor damaged; wiring short | Replace sensor; check wiring harness |
| E2195 | Camshaft Position Sensor Fault | Loose timing; failed sensor | Reset timing; replace sensor |
| E2196 | Manifold Pressure Sensor Fault | Short circuit; contamination | Clean/replace sensor; test wiring |
| E2197 | Exhaust Temperature High | Over-fueling; blocked DPF; restricted exhaust | Check injectors; clean/replace DPF; inspect exhaust |
| E2198 | EGR Valve Fault | Carbon buildup; valve stuck | Clean or replace EGR valve |
| E2199 | DPF High Soot Load | Failed regeneration; excessive idling; Perform forced regen | check sensors |
| E2200 | Alternator Under Voltage | Loose belt; alternator fault | Tighten belt; replace alternator |
| E2201 | Alternator Over Voltage | Faulty regulator | Replace regulator/alternator |
| E2202 | ECM Power Supply Fault | Loose battery cables; blown fuse | Tighten cables; replace fuse |
| E2203 | ECM Internal Memory Error | Corrupted ECM software; Reflash ECM with OEM tool | — |
| E2204 | CAN Communication Loss - ECM to Panel | Broken CAN wiring; ECM fault | Inspect wiring; test ECM |
| E2205 | CAN Communication Loss - ECM to Governor | Governor module failure | Replace governor; test wiring |
| E2206 | Engine Overspeed Shutdown | Fuel rack stuck; governor failure | Inspect governor; recalibrate fuel system |
| E2207 | Engine Underspeed | Low fuel delivery; clogged filters | Replace filters; test fuel delivery |
| E2208 | Low Fuel Rail Pressure | Clogged filter; weak transfer pump; air in lines | Replace filter; test pump; bleed fuel system |
| E2209 | High Fuel Rail Pressure | Injector leak; pressure relief valve stuck | Inspect injectors; replace relief valve; recalibrate ECM |
| E2210 | Fuel Temperature High | Return fuel overheated; cooling failure | Check fuel cooler; replace lines; verify cooling circuit |
| E2211 | Fuel Injector Fault | Open/short circuit; injector internal failure | Replace faulty injector; check harness; test ECM driver |
| E2212 | Coolant Temperature High | Low coolant; blocked radiator; water pump failure; Top coolant | flush radiator; test/replace pump |
| E2213 | Coolant Temperature Low | Thermostat stuck open; sensor fault | Replace thermostat; test sensor |
| E2214 | Coolant Level Low | Leak in hoses or radiator; expansion tank issue; pressure test | Inspect hoses; repair leak |
| E2215 | Oil Pressure Low | Oil leak; worn oil pump; low oil level; Top oil | test/replace oil pump; inspect for leaks |
| E2216 | Oil Pressure High | Blocked oil passage; faulty pressure regulator | Flush oil galleries; replace regulator |
| E2217 | Oil Temperature High | Blocked oil cooler; low oil level; top oil | Clean/replace oil cooler |
| E2218 | Turbo Boost Low | Air hose leak; turbo wear; actuator fault | Replace hose; service turbo; calibrate actuator |
| E2219 | Turbo Overspeed | ECM miscalibration; faulty actuator | Update ECM software; reset actuator |
| E2220 | Air Filter Restriction | Clogged air filter | Replace air filter; inspect intake |
| E2221 | Crankshaft Position Sensor Fault | Sensor damaged; wiring short | Replace sensor; check wiring harness |
| E2222 | Camshaft Position Sensor Fault | Loose timing; failed sensor | Reset timing; replace sensor |
| E2223 | Manifold Pressure Sensor Fault | Short circuit; contamination | Clean/replace sensor; test wiring |
| E2224 | Exhaust Temperature High | Over-fueling; blocked DPF; restricted exhaust | Check injectors; clean/replace DPF; inspect exhaust |
| E2225 | EGR Valve Fault | Carbon buildup; valve stuck | Clean or replace EGR valve |
| E2226 | DPF High Soot Load | Failed regeneration; excessive idling; Perform forced regen | check sensors |
| E2227 | Alternator Under Voltage | Loose belt; alternator fault | Tighten belt; replace alternator |
| E2228 | Alternator Over Voltage | Faulty regulator | Replace regulator/alternator |
| E2229 | ECM Power Supply Fault | Loose battery cables; blown fuse | Tighten cables; replace fuse |
| E2230 | ECM Internal Memory Error | Corrupted ECM software; Reflash ECM with OEM tool | — |
| E2231 | CAN Communication Loss - ECM to Panel | Broken CAN wiring; ECM fault | Inspect wiring; test ECM |
| E2232 | CAN Communication Loss - ECM to Governor | Governor module failure | Replace governor; test wiring |
| E2233 | Engine Overspeed Shutdown | Fuel rack stuck; governor failure | Inspect governor; recalibrate fuel system |
| E2234 | Engine Underspeed | Low fuel delivery; clogged filters | Replace filters; test fuel delivery |
| E2235 | Low Fuel Rail Pressure | Clogged filter; weak transfer pump; air in lines | Replace filter; test pump; bleed fuel system |
| E2236 | High Fuel Rail Pressure | Injector leak; pressure relief valve stuck | Inspect injectors; replace relief valve; recalibrate ECM |
| E2237 | Fuel Temperature High | Return fuel overheated; cooling failure | Check fuel cooler; replace lines; verify cooling circuit |
| E2238 | Fuel Injector Fault | Open/short circuit; injector internal failure | Replace faulty injector; check harness; test ECM driver |
| E2239 | Coolant Temperature High | Low coolant; blocked radiator; water pump failure; Top coolant | flush radiator; test/replace pump |
| E2240 | Coolant Temperature Low | Thermostat stuck open; sensor fault | Replace thermostat; test sensor |
| E2241 | Coolant Level Low | Leak in hoses or radiator; expansion tank issue; pressure test | Inspect hoses; repair leak |
| E2242 | Oil Pressure Low | Oil leak; worn oil pump; low oil level; Top oil | test/replace oil pump; inspect for leaks |
| E2243 | Oil Pressure High | Blocked oil passage; faulty pressure regulator | Flush oil galleries; replace regulator |
| E2244 | Oil Temperature High | Blocked oil cooler; low oil level; top oil | Clean/replace oil cooler |
| E2245 | Turbo Boost Low | Air hose leak; turbo wear; actuator fault | Replace hose; service turbo; calibrate actuator |
| E2246 | Turbo Overspeed | ECM miscalibration; faulty actuator | Update ECM software; reset actuator |
| E2247 | Air Filter Restriction | Clogged air filter | Replace air filter; inspect intake |
| E2248 | Crankshaft Position Sensor Fault | Sensor damaged; wiring short | Replace sensor; check wiring harness |
| E2249 | Camshaft Position Sensor Fault | Loose timing; failed sensor | Reset timing; replace sensor |
| E2250 | Manifold Pressure Sensor Fault | Short circuit; contamination | Clean/replace sensor; test wiring |
| E2251 | Exhaust Temperature High | Over-fueling; blocked DPF; restricted exhaust | Check injectors; clean/replace DPF; inspect exhaust |
| E2252 | EGR Valve Fault | Carbon buildup; valve stuck | Clean or replace EGR valve |
| E2253 | DPF High Soot Load | Failed regeneration; excessive idling; Perform forced regen | check sensors |
| E2254 | Alternator Under Voltage | Loose belt; alternator fault | Tighten belt; replace alternator |
| E2255 | Alternator Over Voltage | Faulty regulator | Replace regulator/alternator |
| E2256 | ECM Power Supply Fault | Loose battery cables; blown fuse | Tighten cables; replace fuse |
| E2257 | ECM Internal Memory Error | Corrupted ECM software; Reflash ECM with OEM tool | — |
| E2258 | CAN Communication Loss - ECM to Panel | Broken CAN wiring; ECM fault | Inspect wiring; test ECM |
| E2259 | CAN Communication Loss - ECM to Governor | Governor module failure | Replace governor; test wiring |
| E2260 | Engine Overspeed Shutdown | Fuel rack stuck; governor failure | Inspect governor; recalibrate fuel system |
| E2261 | Engine Underspeed | Low fuel delivery; clogged filters | Replace filters; test fuel delivery |
| E2262 | Low Fuel Rail Pressure | Clogged filter; weak transfer pump; air in lines | Replace filter; test pump; bleed fuel system |
| E2263 | High Fuel Rail Pressure | Injector leak; pressure relief valve stuck | Inspect injectors; replace relief valve; recalibrate ECM |
| E2264 | Fuel Temperature High | Return fuel overheated; cooling failure | Check fuel cooler; replace lines; verify cooling circuit |
| E2265 | Fuel Injector Fault | Open/short circuit; injector internal failure | Replace faulty injector; check harness; test ECM driver |
| E2266 | Coolant Temperature High | Low coolant; blocked radiator; water pump failure; Top coolant | flush radiator; test/replace pump |
| E2267 | Coolant Temperature Low | Thermostat stuck open; sensor fault | Replace thermostat; test sensor |
| E2268 | Coolant Level Low | Leak in hoses or radiator; expansion tank issue; pressure test | Inspect hoses; repair leak |
| E2269 | Oil Pressure Low | Oil leak; worn oil pump; low oil level; Top oil | test/replace oil pump; inspect for leaks |
| E2270 | Oil Pressure High | Blocked oil passage; faulty pressure regulator | Flush oil galleries; replace regulator |
| E2271 | Low Fuel Rail Pressure | Clogged filter; weak transfer pump; air in lines | Replace filter; test pump; bleed fuel system |
| E2272 | High Fuel Rail Pressure | Injector leak; pressure relief valve stuck | Inspect injectors; replace relief valve; recalibrate ECM |
| E2273 | Fuel Temperature High | Return fuel overheated; cooling failure | Check fuel cooler; replace lines; verify cooling circuit |
| E2274 | Fuel Injector Fault | Open/short circuit; injector internal failure | Replace faulty injector; check harness; test ECM driver |
| E2275 | Coolant Temperature High | Low coolant; blocked radiator; water pump failure; Top coolant | flush radiator; test/replace pump |
| E2276 | Coolant Temperature Low | Thermostat stuck open; sensor fault | Replace thermostat; test sensor |
| E2277 | Coolant Level Low | Leak in hoses or radiator; expansion tank issue; pressure test | Inspect hoses; repair leak |
| E2278 | Oil Pressure Low | Oil leak; worn oil pump; low oil level; Top oil | test/replace oil pump; inspect for leaks |
| E2279 | Oil Pressure High | Blocked oil passage; faulty pressure regulator | Flush oil galleries; replace regulator |
| E2280 | Oil Temperature High | Blocked oil cooler; low oil level; top oil | Clean/replace oil cooler |
| E2281 | Turbo Boost Low | Air hose leak; turbo wear; actuator fault | Replace hose; service turbo; calibrate actuator |
| E2282 | Turbo Overspeed | ECM miscalibration; faulty actuator | Update ECM software; reset actuator |
| E2283 | Air Filter Restriction | Clogged air filter | Replace air filter; inspect intake |
| E2284 | Crankshaft Position Sensor Fault | Sensor damaged; wiring short | Replace sensor; check wiring harness |
| E2285 | Camshaft Position Sensor Fault | Loose timing; failed sensor | Reset timing; replace sensor |
| E2286 | Manifold Pressure Sensor Fault | Short circuit; contamination | Clean/replace sensor; test wiring |
| E2287 | Exhaust Temperature High | Over-fueling; blocked DPF; restricted exhaust | Check injectors; clean/replace DPF; inspect exhaust |
| E2288 | EGR Valve Fault | Carbon buildup; valve stuck | Clean or replace EGR valve |
| E2289 | DPF High Soot Load | Failed regeneration; excessive idling; Perform forced regen | check sensors |
| E2290 | Alternator Under Voltage | Loose belt; alternator fault | Tighten belt; replace alternator |
| E2291 | Alternator Over Voltage | Faulty regulator | Replace regulator/alternator |
| E2292 | ECM Power Supply Fault | Loose battery cables; blown fuse | Tighten cables; replace fuse |
| E2293 | ECM Internal Memory Error | Corrupted ECM software; Reflash ECM with OEM tool | — |
| E2294 | CAN Communication Loss - ECM to Panel | Broken CAN wiring; ECM fault | Inspect wiring; test ECM |
| E2295 | CAN Communication Loss - ECM to Governor | Governor module failure | Replace governor; test wiring |
| E2296 | Engine Overspeed Shutdown | Fuel rack stuck; governor failure | Inspect governor; recalibrate fuel system |
| E2297 | Engine Underspeed | Low fuel delivery; clogged filters | Replace filters; test fuel delivery |
| E2298 | Low Fuel Rail Pressure | Clogged filter; weak transfer pump; air in lines | Replace filter; test pump; bleed fuel system |
| E2299 | High Fuel Rail Pressure | Injector leak; pressure relief valve stuck | Inspect injectors; replace relief valve; recalibrate ECM |
| E2300 | Fuel Temperature High | Return fuel overheated; cooling failure | Check fuel cooler; replace lines; verify cooling circuit |
| E2301 | Fuel Injector Fault | Open/short circuit; injector internal failure | Replace faulty injector; check harness; test ECM driver |
| E2302 | Coolant Temperature High | Low coolant; blocked radiator; water pump failure; Top coolant | flush radiator; test/replace pump |
| E2303 | Coolant Temperature Low | Thermostat stuck open; sensor fault | Replace thermostat; test sensor |
| E2304 | Coolant Level Low | Leak in hoses or radiator; expansion tank issue; pressure test | Inspect hoses; repair leak |
| E2305 | Oil Pressure Low | Oil leak; worn oil pump; low oil level; Top oil | test/replace oil pump; inspect for leaks |
| E2306 | Oil Pressure High | Blocked oil passage; faulty pressure regulator | Flush oil galleries; replace regulator |
| E2307 | Oil Temperature High | Blocked oil cooler; low oil level; top oil | Clean/replace oil cooler |
| E2308 | Turbo Boost Low | Air hose leak; turbo wear; actuator fault | Replace hose; service turbo; calibrate actuator |
| E2309 | Turbo Overspeed | ECM miscalibration; faulty actuator | Update ECM software; reset actuator |
| E2310 | Air Filter Restriction | Clogged air filter | Replace air filter; inspect intake |
| E2311 | Crankshaft Position Sensor Fault | Sensor damaged; wiring short | Replace sensor; check wiring harness |
| E2312 | Camshaft Position Sensor Fault | Loose timing; failed sensor | Reset timing; replace sensor |
| E2313 | Manifold Pressure Sensor Fault | Short circuit; contamination | Clean/replace sensor; test wiring |
| E2314 | Exhaust Temperature High | Over-fueling; blocked DPF; restricted exhaust | Check injectors; clean/replace DPF; inspect exhaust |
| E2315 | EGR Valve Fault | Carbon buildup; valve stuck | Clean or replace EGR valve |
| E2316 | DPF High Soot Load | Failed regeneration; excessive idling; Perform forced regen | check sensors |
| E2317 | Alternator Under Voltage | Loose belt; alternator fault | Tighten belt; replace alternator |
| E2318 | Alternator Over Voltage | Faulty regulator | Replace regulator/alternator |
| E2319 | ECM Power Supply Fault | Loose battery cables; blown fuse | Tighten cables; replace fuse |
| E2320 | ECM Internal Memory Error | Corrupted ECM software; Reflash ECM with OEM tool | — |
| E2321 | CAN Communication Loss - ECM to Panel | Broken CAN wiring; ECM fault | Inspect wiring; test ECM |
| E2322 | CAN Communication Loss - ECM to Governor | Governor module failure | Replace governor; test wiring |
| E2323 | Engine Overspeed Shutdown | Fuel rack stuck; governor failure | Inspect governor; recalibrate fuel system |
| E2324 | Engine Underspeed | Low fuel delivery; clogged filters | Replace filters; test fuel delivery |
| E2325 | Low Fuel Rail Pressure | Clogged filter; weak transfer pump; air in lines | Replace filter; test pump; bleed fuel system |
| E2326 | High Fuel Rail Pressure | Injector leak; pressure relief valve stuck | Inspect injectors; replace relief valve; recalibrate ECM |
| E2327 | Fuel Temperature High | Return fuel overheated; cooling failure | Check fuel cooler; replace lines; verify cooling circuit |
| E2328 | Fuel Injector Fault | Open/short circuit; injector internal failure | Replace faulty injector; check harness; test ECM driver |
| E2329 | Coolant Temperature High | Low coolant; blocked radiator; water pump failure; Top coolant | flush radiator; test/replace pump |
| E2330 | Coolant Temperature Low | Thermostat stuck open; sensor fault | Replace thermostat; test sensor |
| E2331 | Coolant Level Low | Leak in hoses or radiator; expansion tank issue; pressure test | Inspect hoses; repair leak |
| E2332 | Oil Pressure Low | Oil leak; worn oil pump; low oil level; Top oil | test/replace oil pump; inspect for leaks |
| E2333 | Oil Pressure High | Blocked oil passage; faulty pressure regulator | Flush oil galleries; replace regulator |
| E2334 | Oil Temperature High | Blocked oil cooler; low oil level; top oil | Clean/replace oil cooler |
| E2335 | Turbo Boost Low | Air hose leak; turbo wear; actuator fault | Replace hose; service turbo; calibrate actuator |
| E2336 | Turbo Overspeed | ECM miscalibration; faulty actuator | Update ECM software; reset actuator |
| E2337 | Air Filter Restriction | Clogged air filter | Replace air filter; inspect intake |
| E2338 | Crankshaft Position Sensor Fault | Sensor damaged; wiring short | Replace sensor; check wiring harness |
| E2339 | Camshaft Position Sensor Fault | Loose timing; failed sensor | Reset timing; replace sensor |
| E2340 | Manifold Pressure Sensor Fault | Short circuit; contamination | Clean/replace sensor; test wiring |
| E2341 | Low Fuel Rail Pressure | Clogged filter; weak transfer pump; air in lines | Replace filter; test pump; bleed fuel system |
| E2342 | High Fuel Rail Pressure | Injector leak; pressure relief valve stuck | Inspect injectors; replace relief valve; recalibrate ECM |
| E2343 | Fuel Temperature High | Return fuel overheated; cooling failure | Check fuel cooler; replace lines; verify cooling circuit |
| E2344 | Fuel Injector Fault | Open/short circuit; injector internal failure | Replace faulty injector; check harness; test ECM driver |
| E2345 | Coolant Temperature High | Low coolant; blocked radiator; water pump failure; Top coolant | flush radiator; test/replace pump |
| E2346 | Coolant Temperature Low | Thermostat stuck open; sensor fault | Replace thermostat; test sensor |
| E2347 | Coolant Level Low | Leak in hoses or radiator; expansion tank issue; pressure test | Inspect hoses; repair leak |
| E2348 | Oil Pressure Low | Oil leak; worn oil pump; low oil level; Top oil | test/replace oil pump; inspect for leaks |
| E2349 | Oil Pressure High | Blocked oil passage; faulty pressure regulator | Flush oil galleries; replace regulator |
| E2350 | Oil Temperature High | Blocked oil cooler; low oil level; top oil | Clean/replace oil cooler |
| E2351 | Turbo Boost Low | Air hose leak; turbo wear; actuator fault | Replace hose; service turbo; calibrate actuator |
| E2352 | Turbo Overspeed | ECM miscalibration; faulty actuator | Update ECM software; reset actuator |
| E2353 | Air Filter Restriction | Clogged air filter | Replace air filter; inspect intake |
| E2354 | Crankshaft Position Sensor Fault | Sensor damaged; wiring short | Replace sensor; check wiring harness |
| E2355 | Camshaft Position Sensor Fault | Loose timing; failed sensor | Reset timing; replace sensor |
| E2356 | Manifold Pressure Sensor Fault | Short circuit; contamination | Clean/replace sensor; test wiring |
| E2357 | Exhaust Temperature High | Over-fueling; blocked DPF; restricted exhaust | Check injectors; clean/replace DPF; inspect exhaust |
| E2358 | EGR Valve Fault | Carbon buildup; valve stuck | Clean or replace EGR valve |
| E2359 | DPF High Soot Load | Failed regeneration; excessive idling; Perform forced regen | check sensors |
| E2360 | Alternator Under Voltage | Loose belt; alternator fault | Tighten belt; replace alternator |
| E2361 | Alternator Over Voltage | Faulty regulator | Replace regulator/alternator |
| E2362 | ECM Power Supply Fault | Loose battery cables; blown fuse | Tighten cables; replace fuse |
| E2363 | ECM Internal Memory Error | Corrupted ECM software; Reflash ECM with OEM tool | — |
| E2364 | CAN Communication Loss - ECM to Panel | Broken CAN wiring; ECM fault | Inspect wiring; test ECM |
| E2365 | CAN Communication Loss - ECM to Governor | Governor module failure | Replace governor; test wiring |
| E2366 | Engine Overspeed Shutdown | Fuel rack stuck; governor failure | Inspect governor; recalibrate fuel system |
| E2367 | Engine Underspeed | Low fuel delivery; clogged filters | Replace filters; test fuel delivery |
| E2368 | Low Fuel Rail Pressure | Clogged filter; weak transfer pump; air in lines | Replace filter; test pump; bleed fuel system |
| E2369 | High Fuel Rail Pressure | Injector leak; pressure relief valve stuck | Inspect injectors; replace relief valve; recalibrate ECM |
| E2370 | Fuel Temperature High | Return fuel overheated; cooling failure | Check fuel cooler; replace lines; verify cooling circuit |
| E2371 | Fuel Injector Fault | Open/short circuit; injector internal failure | Replace faulty injector; check harness; test ECM driver |
| E2372 | Coolant Temperature High | Low coolant; blocked radiator; water pump failure; Top coolant | flush radiator; test/replace pump |
| E2373 | Coolant Temperature Low | Thermostat stuck open; sensor fault | Replace thermostat; test sensor |
| E2374 | Coolant Level Low | Leak in hoses or radiator; expansion tank issue; pressure test | Inspect hoses; repair leak |
| E2375 | Oil Pressure Low | Oil leak; worn oil pump; low oil level; Top oil | test/replace oil pump; inspect for leaks |
| E2376 | Oil Pressure High | Blocked oil passage; faulty pressure regulator | Flush oil galleries; replace regulator |
| E2377 | Oil Temperature High | Blocked oil cooler; low oil level; top oil | Clean/replace oil cooler |
| E2378 | Turbo Boost Low | Air hose leak; turbo wear; actuator fault | Replace hose; service turbo; calibrate actuator |
| E2379 | Turbo Overspeed | ECM miscalibration; faulty actuator | Update ECM software; reset actuator |
| E2380 | Air Filter Restriction | Clogged air filter | Replace air filter; inspect intake |
| E2381 | Crankshaft Position Sensor Fault | Sensor damaged; wiring short | Replace sensor; check wiring harness |
| E2382 | Camshaft Position Sensor Fault | Loose timing; failed sensor | Reset timing; replace sensor |
| E2383 | Manifold Pressure Sensor Fault | Short circuit; contamination | Clean/replace sensor; test wiring |
| E2384 | Exhaust Temperature High | Over-fueling; blocked DPF; restricted exhaust | Check injectors; clean/replace DPF; inspect exhaust |
| E2385 | EGR Valve Fault | Carbon buildup; valve stuck | Clean or replace EGR valve |
| E2386 | DPF High Soot Load | Failed regeneration; excessive idling; Perform forced regen | check sensors |
| E2387 | Alternator Under Voltage | Loose belt; alternator fault | Tighten belt; replace alternator |
| E2388 | Alternator Over Voltage | Faulty regulator | Replace regulator/alternator |
| E2389 | ECM Power Supply Fault | Loose battery cables; blown fuse | Tighten cables; replace fuse |
| E2390 | ECM Internal Memory Error | Corrupted ECM software; Reflash ECM with OEM tool | — |
| E2391 | CAN Communication Loss - ECM to Panel | Broken CAN wiring; ECM fault | Inspect wiring; test ECM |
| E2392 | CAN Communication Loss - ECM to Governor | Governor module failure | Replace governor; test wiring |
| E2393 | Engine Overspeed Shutdown | Fuel rack stuck; governor failure | Inspect governor; recalibrate fuel system |
| E2394 | Engine Underspeed | Low fuel delivery; clogged filters | Replace filters; test fuel delivery |
| E2395 | Low Fuel Rail Pressure | Clogged filter; weak transfer pump; air in lines | Replace filter; test pump; bleed fuel system |
| E2396 | High Fuel Rail Pressure | Injector leak; pressure relief valve stuck | Inspect injectors; replace relief valve; recalibrate ECM |
| E2397 | Fuel Temperature High | Return fuel overheated; cooling failure | Check fuel cooler; replace lines; verify cooling circuit |
| E2398 | Fuel Injector Fault | Open/short circuit; injector internal failure | Replace faulty injector; check harness; test ECM driver |
| E2399 | Coolant Temperature High | Low coolant; blocked radiator; water pump failure; Top coolant | flush radiator; test/replace pump |
| E2400 | Coolant Temperature Low | Thermostat stuck open; sensor fault | Replace thermostat; test sensor |
| E2401 | Coolant Level Low | Leak in hoses or radiator; expansion tank issue; pressure test | Inspect hoses; repair leak |
| E2402 | Oil Pressure Low | Oil leak; worn oil pump; low oil level; Top oil | test/replace oil pump; inspect for leaks |
| E2403 | Oil Pressure High | Blocked oil passage; faulty pressure regulator | Flush oil galleries; replace regulator |
| E2404 | Oil Temperature High | Blocked oil cooler; low oil level; top oil | Clean/replace oil cooler |
| E2405 | Turbo Boost Low | Air hose leak; turbo wear; actuator fault | Replace hose; service turbo; calibrate actuator |
| E2406 | Turbo Overspeed | ECM miscalibration; faulty actuator | Update ECM software; reset actuator |
| E2407 | Air Filter Restriction | Clogged air filter | Replace air filter; inspect intake |
| E2408 | Crankshaft Position Sensor Fault | Sensor damaged; wiring short | Replace sensor; check wiring harness |
| E2409 | Camshaft Position Sensor Fault | Loose timing; failed sensor | Reset timing; replace sensor |
| E2410 | Manifold Pressure Sensor Fault | Short circuit; contamination | Clean/replace sensor; test wiring |
| E2411 | Exhaust Temperature High | Over-fueling; blocked DPF; restricted exhaust | Check injectors; clean/replace DPF; inspect exhaust |
| E2412 | EGR Valve Fault | Carbon buildup; valve stuck | Clean or replace EGR valve |
| E2413 | DPF High Soot Load | Failed regeneration; excessive idling; Perform forced regen | check sensors |
| E2414 | Alternator Under Voltage | Loose belt; alternator fault | Tighten belt; replace alternator |
| E2415 | Alternator Over Voltage | Faulty regulator | Replace regulator/alternator |
| E2416 | ECM Power Supply Fault | Loose battery cables; blown fuse | Tighten cables; replace fuse |
| E2417 | ECM Internal Memory Error | Corrupted ECM software; Reflash ECM with OEM tool | — |
| E2418 | CAN Communication Loss - ECM to Panel | Broken CAN wiring; ECM fault | Inspect wiring; test ECM |
| E2419 | CAN Communication Loss - ECM to Governor | Governor module failure | Replace governor; test wiring |
| E2420 | Engine Overspeed Shutdown | Fuel rack stuck; governor failure | Inspect governor; recalibrate fuel system |
| E2421 | Low Fuel Rail Pressure | Clogged filter; weak transfer pump; air in lines | Replace filter; test pump; bleed fuel system |
| E2422 | High Fuel Rail Pressure | Injector leak; pressure relief valve stuck | Inspect injectors; replace relief valve; recalibrate ECM |
| E2423 | Fuel Temperature High | Return fuel overheated; cooling failure | Check fuel cooler; replace lines; verify cooling circuit |
| E2424 | Fuel Injector Fault | Open/short circuit; injector internal failure | Replace faulty injector; check harness; test ECM driver |
| E2425 | Coolant Temperature High | Low coolant; blocked radiator; water pump failure; Top coolant | flush radiator; test/replace pump |
| E2426 | Coolant Temperature Low | Thermostat stuck open; sensor fault | Replace thermostat; test sensor |
| E2427 | Coolant Level Low | Leak in hoses or radiator; expansion tank issue; pressure test | Inspect hoses; repair leak |
| E2428 | Oil Pressure Low | Oil leak; worn oil pump; low oil level; Top oil | test/replace oil pump; inspect for leaks |
| E2429 | Oil Pressure High | Blocked oil passage; faulty pressure regulator | Flush oil galleries; replace regulator |
| E2430 | Oil Temperature High | Blocked oil cooler; low oil level; top oil | Clean/replace oil cooler |
| E2431 | Turbo Boost Low | Air hose leak; turbo wear; actuator fault | Replace hose; service turbo; calibrate actuator |
| E2432 | Turbo Overspeed | ECM miscalibration; faulty actuator | Update ECM software; reset actuator |
| E2433 | Air Filter Restriction | Clogged air filter | Replace air filter; inspect intake |
| E2434 | Crankshaft Position Sensor Fault | Sensor damaged; wiring short | Replace sensor; check wiring harness |
| E2435 | Camshaft Position Sensor Fault | Loose timing; failed sensor | Reset timing; replace sensor |
| E2436 | Manifold Pressure Sensor Fault | Short circuit; contamination | Clean/replace sensor; test wiring |
| E2437 | Exhaust Temperature High | Over-fueling; blocked DPF; restricted exhaust | Check injectors; clean/replace DPF; inspect exhaust |
| E2438 | EGR Valve Fault | Carbon buildup; valve stuck | Clean or replace EGR valve |
| E2439 | DPF High Soot Load | Failed regeneration; excessive idling; Perform forced regen | check sensors |
| E2440 | Alternator Under Voltage | Loose belt; alternator fault | Tighten belt; replace alternator |
| E2441 | Alternator Over Voltage | Faulty regulator | Replace regulator/alternator |
| E2442 | ECM Power Supply Fault | Loose battery cables; blown fuse | Tighten cables; replace fuse |
| E2443 | ECM Internal Memory Error | Corrupted ECM software; Reflash ECM with OEM tool | — |
| E2444 | CAN Communication Loss - ECM to Panel | Broken CAN wiring; ECM fault | Inspect wiring; test ECM |
| E2445 | CAN Communication Loss - ECM to Governor | Governor module failure | Replace governor; test wiring |
| E2446 | Engine Overspeed Shutdown | Fuel rack stuck; governor failure | Inspect governor; recalibrate fuel system |
| E2447 | Engine Underspeed | Low fuel delivery; clogged filters | Replace filters; test fuel delivery |
| E2448 | Low Fuel Rail Pressure | Clogged filter; weak transfer pump; air in lines | Replace filter; test pump; bleed fuel system |
| E2449 | High Fuel Rail Pressure | Injector leak; pressure relief valve stuck | Inspect injectors; replace relief valve; recalibrate ECM |
| E2450 | Fuel Temperature High | Return fuel overheated; cooling failure | Check fuel cooler; replace lines; verify cooling circuit |
| E2451 | Fuel Injector Fault | Open/short circuit; injector internal failure | Replace faulty injector; check harness; test ECM driver |
| E2452 | Coolant Temperature High | Low coolant; blocked radiator; water pump failure; Top coolant | flush radiator; test/replace pump |
| E2453 | Coolant Temperature Low | Thermostat stuck open; sensor fault | Replace thermostat; test sensor |
| E2454 | Coolant Level Low | Leak in hoses or radiator; expansion tank issue; pressure test | Inspect hoses; repair leak |
| E2455 | Oil Pressure Low | Oil leak; worn oil pump; low oil level; Top oil | test/replace oil pump; inspect for leaks |
| E2456 | Oil Pressure High | Blocked oil passage; faulty pressure regulator | Flush oil galleries; replace regulator |
| E2457 | Oil Temperature High | Blocked oil cooler; low oil level; top oil | Clean/replace oil cooler |
| E2458 | Turbo Boost Low | Air hose leak; turbo wear; actuator fault | Replace hose; service turbo; calibrate actuator |
| E2459 | Turbo Overspeed | ECM miscalibration; faulty actuator | Update ECM software; reset actuator |
| E2460 | Air Filter Restriction | Clogged air filter | Replace air filter; inspect intake |
| E2461 | Crankshaft Position Sensor Fault | Sensor damaged; wiring short | Replace sensor; check wiring harness |
| E2462 | Camshaft Position Sensor Fault | Loose timing; failed sensor | Reset timing; replace sensor |
| E2463 | Manifold Pressure Sensor Fault | Short circuit; contamination | Clean/replace sensor; test wiring |
| E2464 | Exhaust Temperature High | Over-fueling; blocked DPF; restricted exhaust | Check injectors; clean/replace DPF; inspect exhaust |
| E2465 | EGR Valve Fault | Carbon buildup; valve stuck | Clean or replace EGR valve |
| E2466 | DPF High Soot Load | Failed regeneration; excessive idling; Perform forced regen | check sensors |
| E2467 | Alternator Under Voltage | Loose belt; alternator fault | Tighten belt; replace alternator |
| E2468 | Alternator Over Voltage | Faulty regulator | Replace regulator/alternator |
| E2469 | ECM Power Supply Fault | Loose battery cables; blown fuse | Tighten cables; replace fuse |
| E2470 | ECM Internal Memory Error | Corrupted ECM software; Reflash ECM with OEM tool | — |
| E2471 | CAN Communication Loss - ECM to Panel | Broken CAN wiring; ECM fault | Inspect wiring; test ECM |
| E2472 | CAN Communication Loss - ECM to Governor | Governor module failure | Replace governor; test wiring |
| E2473 | Engine Overspeed Shutdown | Fuel rack stuck; governor failure | Inspect governor; recalibrate fuel system |
| E2474 | Engine Underspeed | Low fuel delivery; clogged filters | Replace filters; test fuel delivery |
| E2475 | Low Fuel Rail Pressure | Clogged filter; weak transfer pump; air in lines | Replace filter; test pump; bleed fuel system |
| E2476 | High Fuel Rail Pressure | Injector leak; pressure relief valve stuck | Inspect injectors; replace relief valve; recalibrate ECM |
| E2477 | Fuel Temperature High | Return fuel overheated; cooling failure | Check fuel cooler; replace lines; verify cooling circuit |
| E2478 | Fuel Injector Fault | Open/short circuit; injector internal failure | Replace faulty injector; check harness; test ECM driver |
| E2479 | Coolant Temperature High | Low coolant; blocked radiator; water pump failure; Top coolant | flush radiator; test/replace pump |
| E2480 | Coolant Temperature Low | Thermostat stuck open; sensor fault | Replace thermostat; test sensor |
| E2481 | Coolant Level Low | Leak in hoses or radiator; expansion tank issue; pressure test | Inspect hoses; repair leak |
| E2482 | Oil Pressure Low | Oil leak; worn oil pump; low oil level; Top oil | test/replace oil pump; inspect for leaks |
| E2483 | Oil Pressure High | Blocked oil passage; faulty pressure regulator | Flush oil galleries; replace regulator |
| E2484 | Oil Temperature High | Blocked oil cooler; low oil level; top oil | Clean/replace oil cooler |
| E2485 | Turbo Boost Low | Air hose leak; turbo wear; actuator fault | Replace hose; service turbo; calibrate actuator |
| E2486 | Turbo Overspeed | ECM miscalibration; faulty actuator | Update ECM software; reset actuator |
| E2487 | Air Filter Restriction | Clogged air filter | Replace air filter; inspect intake |
| E2488 | Crankshaft Position Sensor Fault | Sensor damaged; wiring short | Replace sensor; check wiring harness |
| E2489 | Camshaft Position Sensor Fault | Loose timing; failed sensor | Reset timing; replace sensor |
| E2490 | Manifold Pressure Sensor Fault | Short circuit; contamination | Clean/replace sensor; test wiring |
| E2491 | Exhaust Temperature High | Over-fueling; blocked DPF; restricted exhaust | Check injectors; clean/replace DPF; inspect exhaust |
| E2492 | EGR Valve Fault | Carbon buildup; valve stuck | Clean or replace EGR valve |
| E2493 | DPF High Soot Load | Failed regeneration; excessive idling; Perform forced regen | check sensors |
| E2494 | Alternator Under Voltage | Loose belt; alternator fault | Tighten belt; replace alternator |
| E2495 | Alternator Over Voltage | Faulty regulator | Replace regulator/alternator |
| E2496 | ECM Power Supply Fault | Loose battery cables; blown fuse | Tighten cables; replace fuse |
| E2497 | ECM Internal Memory Error | Corrupted ECM software; Reflash ECM with OEM tool | — |
| E2498 | CAN Communication Loss - ECM to Panel | Broken CAN wiring; ECM fault | Inspect wiring; test ECM |
| E2499 | CAN Communication Loss - ECM to Governor | Governor module failure | Replace governor; test wiring |
| E2500 | Engine Overspeed Shutdown | Fuel rack stuck; governor failure | Inspect governor; recalibrate fuel system |
Codes and descriptions are industry-standard identifiers reproduced for identification only. This reference is not affiliated with or endorsed by Cummins; for official procedures always refer to the manufacturer’s service manual for your specific engine. A dash means our registry holds no verified entry for that column — we publish the gap rather than fill it in.
Send us the code and the engine serial. We diagnose Cummins sets on site across all 47 counties, and repair controllers at board level on the bench in Embakasi.