ECD SYSTEM (w/o DPF) DIAGNOSTIC TROUBLE CODE CHART
Tech Tips
Parameters listed in the chart may be different than your readings depending on the type of instrument and other factors.
If any DTCs are displayed during a check mode DTC check, check the circuit for the DTCs listed in the table below. For details of each DTC, refer to the "See page" indicated.
| DTC Code | Detection Item | Trouble Area | MIL | Memory | See page |
|---|---|---|---|---|---|
| P0046 | Turbocharger / Supercharger Boost Control Solenoid Circuit Range / Performance | - DC motor (turbocharger sub-assembly) - Turbo motor driver |
Comes on | DTC stored | |
| P0047 | Turbocharger/Supercharger Boost Control "A" Circuit Low | - Open in DC motor circuit - Turbo motor driver - DC Motor (turbocharger sub-assembly) |
Comes on | DTC stored | |
| P0048 | Turbocharger/Supercharger Boost Control "A" Circuit High | - Short in DC motor circuit - Turbo motor driver - DC Motor (turbocharger sub-assembly) |
Comes on | DTC stored | |
| P0069 | MAP Sensor Too High or Too Low | ECM | Comes on | DTC stored | |
| P0087 | Fuel Rail / System Pressure - Too Low | - Open or short in fuel pressure sensor circuit - Fuel pressure sensor (common rail) - Ran out of fuel - Fuel frozen - ECM |
Comes on | DTC stored | |
| P0088 | Fuel Rail / System Pressure - Too High | - Suction control valve - Pressure discharge valve (common rail) - Open or short in suction control valve circuit - Fuel pressure sensor (common rail) - ECM |
Comes on | DTC stored | |
| P0093 | Fuel System Leak Detected - Large Leak | - Fuel line between fuel supply pump assembly and common rail assembly - Fuel line between common rail assembly and each injector assembly - Suction control valve - Common rail assembly - Injector assembly - Pressure discharge valve (common rail assembly) - Fuel pressure sensor (common rail assembly) - Crankshaft position sensor - Fuel filter element sub-assembly - Open or short in injector driver circuit (P0200 stored simultaneously) - Open or short in injector circuit - Injector driver (P0200 stored simultaneously) - ECM |
Comes on | DTC stored | |
| P00AF | Turbocharger/Supercharger Boost Control "A" Module Performance | - Turbo motor driver - Open or short in turbo motor driver circuit - Turbo motor driver ground problem - ECM |
Comes on | DTC stored | |
| P00B3 | Radiator Coolant Temperature Sensor Circuit Low | - Short in engine coolant temperature (radiator) sensor circuit - Engine coolant temperature (radiator) sensor - ECM |
Comes on | DTC stored | |
| P00B4 | Radiator Coolant Temperature Sensor Circuit High | - Open in engine coolant temperature (radiator) sensor circuit - Engine coolant temperature (radiator) sensor - ECM |
Comes on | DTC stored | |
| P0101 | Mass or Volume Air Flow Circuit Range / Performance Problem | - Air induction system - Mass air flow meter |
Comes on | DTC stored | |
| P0102 | Mass or Volume Air Flow Circuit Low Input | - Open or short in mass air flow meter circuit - Mass air flow meter - ECM |
Comes on | DTC stored | |
| P0103 | Mass or Volume Air Flow Circuit High Input | - Open or short in Mass air flow meter circuit - Mass air flow meter - ECM |
Comes on | DTC stored | |
| P0106 | Manifold Absolute Pressure / Barometric Pressure Circuit Range / Performance Problem | - Vacuum hose connection - Manifold absolute pressure sensor |
Comes on | DTC stored | |
| P0107 | Manifold Absolute Pressure / Barometric Pressure Circuit Low Input | - Open or short in manifold absolute pressure sensor circuit - Manifold absolute pressure sensor - ECM |
Comes on | DTC stored | |
| P0108 | Manifold Absolute Pressure / Barometric Pressure Circuit High Input | - Open or short in manifold absolute pressure sensor circuit - Manifold absolute pressure sensor - ECM |
Comes on | DTC stored | |
| P0112 | Intake Air Temperature Circuit Low Input | - Short in IAT sensor circuit - IAT sensor (built into mass air flow meter) - ECM |
Comes on | DTC stored | |
| P0113 | Intake Air Temperature Circuit High Input | - Open in IAT sensor circuit - IAT sensor (built into mass air flow meter) - ECM |
Comes on | DTC stored | |
| P0115 | Engine Coolant Temperature Circuit | - Open or short in engine coolant temperature sensor circuit - Engine coolant temperature sensor - ECM |
Comes on | DTC stored | |
| P0116 | Engine Coolant Temperature Circuit Range / Performance Problem | Engine coolant temperature sensor | Comes on | DTC stored | |
| P0117 | Engine Coolant Temperature Circuit Low Input | - Short in engine coolant temperature sensor circuit - Engine coolant temperature sensor - ECM |
Comes on | DTC stored | |
| P0118 | Engine Coolant Temperature Circuit High Input | - Open in engine coolant temperature sensor circuit - Engine coolant temperature sensor - ECM |
Comes on | DTC stored | |
| P0122 | Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input | - Throttle position sensor - Open or short in VLU circuit - Open in VC circuit - ECM |
Comes on | DTC stored | |
| P0123 | Throttle / Pedal Position Sensor / Switch "A" Circuit High Input | - Throttle position sensor - Open in E2 circuit - VC and VLU circuits are short-circuited - ECM |
Comes on | DTC stored | |
| P0168 | Fuel Temperature Too High | Fuel temperature sensor | Comes on | DTC stored | |
| P0180 | Fuel Temperature Sensor "A" Circuit | - Open or short in fuel temperature sensor circuit - Fuel temperature sensor - ECM |
Comes on | DTC stored | |
| P0182 | Fuel Temperature Sensor "A" Circuit Low Input | - Short in fuel temperature sensor circuit - Fuel temperature sensor - ECM |
Comes on | DTC stored | |
| P0183 | Fuel Temperature Sensor "A" Circuit High Input | - Open in fuel temperature sensor circuit - Fuel temperature sensor - ECM |
Comes on | DTC stored | |
| P0190 | Fuel Rail Pressure Sensor Circuit | - Open or short in fuel pressure sensor circuit - Fuel pressure sensor (common rail) - ECM |
Comes on | DTC stored | |
| P0191 | Fuel Rail Pressure Sensor Circuit Range / Performance | - Open or short in fuel pressure sensor circuit - Fuel pressure sensor (common rail) - ECM |
Comes on | DTC stored | |
| P0192 | Fuel Rail Pressure Sensor Circuit Low Input | - Open or short in fuel pressure sensor circuit - Fuel pressure sensor (common rail) - ECM |
Comes on | DTC stored | |
| P0193 | Fuel Rail Pressure Sensor Circuit High Input | - Open or short in fuel pressure sensor circuit - Fuel pressure sensor (common rail) - ECM |
Comes on | DTC stored | |
| P0200 | Injector Circuit / Open | - Open or short in injector driver circuit - Injector assembly - Injector driver - ECM |
Comes on | DTC stored | |
| P0299 | Turbocharger / Supercharger Underboost | - Turbocharger sub-assembly - Extremely low battery voltage (P0560 output simultaneously) - Disconnected pipe between turbo and intake manifold - Disconnected manifold absolute pressure sensor hose - Throttle valve stuck closed - Electric EGR control valve assembly does not close - Exhaust system or intake system modified (leading to increased pressure loss, etc.) - Manifold absolute pressure sensor - Injection system (reduction in fuel injection volume) - ECM |
Comes on | DTC stored | |
| P0335 | Crankshaft Position Sensor "A" Circuit | - Open or short in crankshaft position sensor circuit - Crankshaft position sensor - No. 1 crankshaft position sensor plate (crankshaft) - ECM |
Comes on | DTC stored | |
| P0339 | Crankshaft Position Sensor "A" Circuit Intermittent | - Open or short in crankshaft position sensor circuit - Crankshaft position sensor - No. 1 crankshaft position sensor plate (crankshaft) - Camshaft timing pulley - ECM |
- | DTC stored | |
| P0340 | Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor) | - Open or short in camshaft position sensor circuit - Camshaft position sensor - Camshaft timing pulley - ECM |
Comes on | DTC stored | |
| P0400 | Exhaust Gas Recirculation Flow | - EGR valve stuck - EGR valve does not move smoothly - Electric vacuum regulating valve assembly - Vacuum switching valve (for EGR Cut) - Electric vacuum regulating valve assembly circuit - Vacuum switching valve (for EGR Cut) circuit - EGR blockage in line between exhaust manifold and intake manifold - Mass air flow meter - Intake system (leaks or blockages) - EGR cooler - Exhaust system (exhaust gas leaks) - ECM |
Comes on | DTC stored | |
| P0405 | Exhaust Gas Recirculation Sensor "A" Circuit Low | - Open or short in EGR valve position sensor circuit - EGR valve position sensor - ECM |
Comes on | DTC stored | |
| P0406 | Exhaust Gas Recirculation Sensor "A" Circuit High | - Open or short in EGR valve position sensor circuit - EGR valve position sensor - ECM |
Comes on | DTC stored | |
| P0488 | Exhaust Gas Recirculation Throttle Position Control Range / Performance | - Throttle valve stuck - Throttle valve does not move smoothly - Open or short in throttle control motor circuit - ECM |
Comes on | DTC stored | |
| P0489 | Exhaust Gas Recirculation Control Circuit Low | - Electric vacuum regulating valve assembly - Open or short in electric vacuum regulating valve assembly circuit - ECM |
Comes on | DTC stored | |
| P0490 | Exhaust Gas Recirculation Control Circuit High | - Electric vacuum regulating valve assembly - Open or short in electric vacuum regulating valve assembly circuit - ECM |
Comes on | DTC stored | |
| P0500 | Vehicle Speed Sensor "A" | - Open or short in speedometer circuit - Speedometer assembly - ECM |
Comes on | DTC stored | |
| P0504 | Brake Switch "A" / "B" Correlation | - Open or short in stop light switch signal circuit - STOP fuse - IGN fuse - Stop light switch - ECM |
- | DTC stored | |
| P0560 | System Voltage | - Open in backup power source circuit (to BATT terminal) - Battery - Battery terminals - EFI fuse - ECM |
Comes on | DTC stored | |
| P0606 | ECM / PCM Processor | ECM | Comes on | DTC stored | |
| P060A | Internal Control Module Monitoring Processor Performance | ECM | Comes on | DTC stored | |
| P060B | Internal Control Module A/D Processing Performance | ECM | Comes on | DTC stored | |
| P0617 | Starter Relay Circuit High | - Park/Neutral Position (PNP) switch (A/T models) - STA relay circuit - Ignition switch - ECM |
Comes on | DTC stored | |
| P0627 | Fuel Pump Control Circuit / Open | - Open or short in suction control valve circuit - Suction control valve - ECM |
Comes on | DTC stored | |
| P0724 | Brake Switch "B" Circuit High | - Short in stop light switch signal circuit - Stop light switch assembly - ECM |
Comes on | DTC stored | |
| P1229 | Fuel Pump System | - Short in suction control valve circuit - Suction control valve - Fuel pressure sensor (common rail assembly) - ECM |
Comes on | DTC stored | |
| P1238 | Injector Malfunction | - Injector assembly - Injector driver (P0200 stored simultaneously) - Connector connection (P0200 stored simultaneously) - Compression pressure - Valve timing - Fuel with low cetane number used - ECM |
Comes on | DTC stored | |
| P1251 | Turbocharger / Supercharger Overboost Condition (Too High) | - Turbocharger sub-assembly - VN turbo link stuck malfunction - Extremely low battery voltage (P0560 stored simultaneously) - Intake system - Exhaust system - Electric EGR control valve assembly - EGR cooler - Injector assembly - Diesel throttle body assembly - ECM |
Comes on | DTC stored | |
| P1271 | Fuel Regulator Circuit Malfunction (EDU Drive) | - Open or short in pressure discharge valve circuit - Pressure discharge valve - Injector driver |
Comes on | DTC stored | |
| P1272 | Fuel Pressure Regulator Malfunction | - Open or short in pressure discharge valve circuit (P1271 is stored simultaneously) - Pressure discharge valve - Injector driver - ECM |
Comes on | DTC stored | |
| P1496 | Intake Air Temperature Sensor 1 Circuit Low | - Short in intake air temperature sensor (turbo) circuit - Intake air temperature sensor (turbo) - ECM |
Comes on | DTC stored | |
| P1497 | Intake Air Temperature Sensor 1 Circuit High | - Open in intake air temperature sensor (turbo) circuit - Intake air temperature sensor (turbo) - ECM |
Comes on | DTC stored | |
| P1601 | Injector Correction Circuit Malfunction (EEPROM) | - Injector compensation code - Injector pilot quantity learning value - Crank time compensation learning value - ECM |
Comes on | DTC stored | |
| P1604 | Startability Malfunction | - Battery - Entry and start system - Engine immobiliser system - Irregular fuel - Lack of fuel - Suction control valve - Injector assembly - Fuel filter element sub-assembly - Glow system - Injector driver - Engine coolant temperature sensor - Intake system - Exhaust system - Engine damaged, seized up - Loss of compression - Pressure discharge valve - Fuel pressure sensor - EGR system - Diesel throttle system |
- | DTC stored | |
| P1605 | Rough Idling | - Injector assembly - Injector compensation code - Fuel leak - Glow system - Intake air system leakage - Intake air system blockage - EGR system - Throttle valve system - Suction control valve - Low quality fuel - Fuel filter element sub-assembly air bleed problem - Accessory problem (A/C, generator, etc.) - Engine assembly - ECM |
- | DTC stored | |
| P1607 | Cruise Control Input Processor | ECM | Comes on | DTC stored | |
| P2006 | Intake Manifold Runner Control Stuck Closed (Bank 1) | - Vacuum switching valve (for swirl control valve) - Open or short in vacuum switching valve (for swirl control valve) circuit - Intake manifold (swirl control valve) - Electric EGR control valve assembly - Turbocharger sub-assembly - Mass air flow meter - Air cleaner hose - Vacuum hose - Air cleaner element is clogged - Intake hose is disconnected - ECM |
Comes on | DTC stored | |
| P2009 | Intake Manifold Runner Control Circuit Low (Bank 1) | - Vacuum switching valve (for swirl control valve) - Open in vacuum switching valve (for swirl control valve) circuit - ECM |
Comes on | DTC stored | |
| P2010 | Intake Manifold Runner Control Circuit High (Bank 1) | - Vacuum switching valve (for swirl control valve) - Short in vacuum switching valve (for swirl control valve) circuit - ECM |
Comes on | DTC stored | |
| P2120 | Throttle / Pedal Position Sensor / Switch "D" Circuit | - Accelerator pedal position sensor - Accelerator pedal assembly - Accelerator pedal rod (arm) deformed - ECM |
Comes on | DTC stored | |
| P2121 | Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance | - Accelerator pedal position sensor circuit - Accelerator pedal position sensor - ECM |
Comes on | DTC stored | |
| P2122 | Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input | - Accelerator pedal position sensor - Open in VCPA circuit - VPA circuit open or shorted to ground - Accelerator pedal assembly - Accelerator pedal rod (arm) deformed - ECM |
Comes on | DTC stored | |
| P2123 | Throttle / Pedal Position Sensor / Switch "D" Circuit High Input | - Accelerator pedal position sensor - Open in EPA circuit - Accelerator pedal assembly - Accelerator pedal rod (arm) deformed - ECM |
Comes on | DTC stored | |
| P2125 | Throttle / Pedal Position Sensor / Switch "E" Circuit | - Accelerator pedal position sensor - Accelerator pedal assembly - Accelerator pedal rod (arm) deformed - ECM |
Comes on | DTC stored | |
| P2127 | Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input | - Accelerator pedal position sensor - Open in VCP2 circuit - VPA2 circuit open or shorted to ground - Accelerator pedal assembly - Accelerator pedal rod (arm) deformed - ECM |
Comes on | DTC stored | |
| P2128 | Throttle / Pedal Position Sensor / Switch "E" Circuit High Input | - Accelerator pedal position sensor - Open in EPA2 circuit - Accelerator pedal assembly - Accelerator pedal rod (arm) deformed - ECM |
Comes on | DTC stored | |
| P2138 | Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation | - VPA and VPA2 circuits are short-circuited - Accelerator pedal position sensor - Accelerator pedal assembly - Accelerator pedal rod (arm) deformed - ECM |
Comes on | DTC stored | |
| P2226 | Barometric Pressure Circuit | ECM | Comes on | DTC stored | |
| P2228 | Barometric Pressure Circuit Low Input | ECM | Comes on | DTC stored | |
| P2229 | Barometric Pressure Circuit High Input | ECM | Comes on | DTC stored | |
| P245C | EGR Cooler Bypass Control Circuit Low | - Open or short in vacuum switching valve (for EGR bypass valve) circuit - Vacuum switching valve (for EGR bypass valve) - ECM |
Comes on | DTC stored | |
| P245D | EGR Cooler Bypass Control Circuit High | - Open or short in vacuum switching valve (for EGR bypass valve) circuit - Vacuum switching valve (for EGR bypass valve) - ECM |
Comes on | DTC stored | |
| P2563 | Turbocharger/Supercharger Boost Control Position Sensor "A" Circuit Range/Performance | Nozzle vane position sensor (Turbocharger sub-assembly) | Comes on | DTC stored | |
| P2564 | Turbocharger/Supercharger Boost Control Position Sensor "A" Circuit Low | - Nozzle vane position sensor (Turbocharger sub-assembly) - Open or short in nozzle vane position sensor circuit - Turbo motor driver |
Comes on | DTC stored | |
| P2565 | Turbocharger/Supercharger Boost Control Position Sensor "A" Circuit High | - Nozzle vane position sensor (Turbocharger sub-assembly) - Open or short in nozzle vane position sensor circuit - Turbo motor driver |
Comes on | DTC stored | |
| P2588 | Turbocharger/Supercharger Boost Control Position Sensor "B" Circuit Low | - Nozzle vane position sensor (Turbocharger sub-assembly) - Open or short in nozzle vane position sensor circuit - Turbo motor driver |
Comes on | DTC stored | |
| P2589 | Turbocharger/Supercharger Boost Control Position Sensor "B" Circuit High | - Nozzle vane position sensor (Turbocharger sub-assembly) - Open or short in nozzle vane position sensor circuit - Turbo motor driver |
Comes on | DTC stored | |
| U0101 | Lost Communication with TCM | - ECM - Transmission control ECU - ECM to transmission control ECU circuit |
Comes on | DTC stored |