ECD SYSTEM DIAGNOSTIC TROUBLE CODE CHART

Tech Tips

Parameters listed in the chart may be different from your readings depending on the type of instruments and other factors.

If any DTCs are displayed during a check mode, check the circuit for the DTCs listed in the chart below. For details of each DTC, refer to the page indicated.

ECD SYSTEM:
DTC Code Detection Item Trouble Area MIL Memory See page
P0045 Turbocharger / Supercharger Boost Control Solenoid Circuit / Open

1. Open or short in VN turbo actuator circuit

2. Turbocharger

3. Turbocharger actuator

4. ECM

 Comes on DTC stored

Click here

P0087 Fuel Rail / System Pressure - Too Low

1. Open or short in fuel pressure sensor circuit

2. Fuel pressure sensor

3. ECM

 Comes on DTC stored

Click here

P0088 Fuel Rail / System Pressure - Too High

1. Supply pump (suction control valve)

2. Open or short in supply pump (suction control valve) circuit

3. Common rail assembly

4. ECM

 Comes on DTC stored

Click here

P0093 Fuel System Leak Detected - Large Leak

1. Fuel leak (supply pump to common rail to injector)

2. Injector

3. Supply pump (suction control valve)

4. Wire harness and connector

5. Common rail assembly

6. ECM

 Comes on DTC stored

Click here

P0095 Intake Air Temperature Sensor 2 Circuit

1. Open or short in IAT sensor (after turbocharged) circuit

2. IAT sensor (after turbocharged)

3. ECM

 Comes on DTC stored

Click here

P0097 Intake Air Temperature Sensor 2 Circuit Low

1. Open or short in IAT sensor (after turbocharged) circuit

2. IAT sensor (after turbocharged)

3. ECM

 Comes on DTC stored

Click here

P0098 Intake Air Temperature Sensor 2 Circuit High

1. Open or short in IAT sensor (after turbocharged) circuit

2. IAT sensor (after turbocharged)

3. ECM

 Comes on DTC stored

Click here

P0100 Mass or Volume Air Flow Circuit

1. Open or short in MAF meter circuit

2. MAF meter

3. Voltage converter

4. ECM

 Comes on DTC stored

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P0101 Mass Air Flow Circuit Range / Performance Problem Mass air flow meter Comes on DTC stored

Click here

P0102 Mass or Volume Air Flow Circuit Low Input

1. Open or short in MAF meter circuit

2. MAF meter

3. Voltage converter

4. ECM

 Comes on DTC stored

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P0103 Mass or Volume Air Flow Circuit High Input

1. Open or short in MAF meter circuit

2. MAF meter

3. Voltage converter

4. ECM

 Comes on DTC stored

Click here

P0105 Manifold Absolute Pressure / Barometric Pressure Circuit

1. Open or short in turbo pressure sensor circuit

2. Turbo pressure sensor

3. ECM

 Comes on DTC stored

Click here

P0106 Manifold Absolute Pressure / Barometric Pressure Circuit Range / Performance Problem Manifold absolute pressure sensor Comes on DTC stored

Click here

P0107 Manifold Absolute Pressure / Barometric Pressure Circuit Low Input

1. Open or short in turbo pressure sensor circuit

2. Turbo pressure sensor

3. ECM

 Comes on DTC stored

Click here

P0108 Manifold Absolute Pressure / Barometric Pressure Circuit High Input

1. Open or short in turbo pressure sensor circuit

2. Turbo pressure sensor

3. ECM

 Comes on DTC stored

Click here

P0110 Intake Air Temperature Circuit

1. Open or short in IAT sensor circuit

2. IAT sensor (built in MAF meter)

3. ECM

 Blinking* DTC stored

Click here

P0112 Intake Air Temperature Circuit Low Input

1. Open or short in IAT sensor circuit

2. IAT sensor (built in MAF meter)

3. ECM

 Blinking* DTC stored

Click here

P0113 Intake Air Temperature Circuit High Input

1. Open or short in IAT sensor circuit

2. IAT sensor (built in MAF meter)

3. ECM

 Blinking* DTC stored

Click here

P0115 Engine Coolant Temperature Circuit

1. Open or short in ECT sensor circuit

2. ECT sensor

3. ECM

 Blinking* DTC stored

Click here

P0116 Engine Coolant Temperature Circuit Range / Performance Problem Engine coolant temperature sensor Blinking* DTC stored

Click here

P0117 Engine Coolant Temperature Circuit Low Input

1. Open or short in ECT sensor circuit

2. ECT sensor

3. ECM

 Blinking* DTC stored

Click here

P0118 Engine Coolant Temperature Circuit High Input

1. Open or short in ECT sensor circuit

2. ECT sensor

3. ECM

 Blinking* DTC stored

Click here

P0120 Throttle / Pedal Position Sensor / Switch "A" Circuit

1. Open or short in throttle position sensor circuit

2. Throttle position sensor

3. ECM

 Comes on DTC stored

Click here

P0122 Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input

1. Open in throttle position sensor circuit

2. Throttle position sensor

3. ECM

 Comes on DTC stored

Click here

P0123 Throttle / Pedal Position Sensor / Switch "A" Circuit High Input

1. Short in throttle position sensor circuit

2. Throttle position sensor

3. ECM

 Comes on DTC stored

Click here

P0168 Fuel Temperature Too High

1. Open or short in fuel temperature sensor circuit

2. Fuel temperature sensor

3. ECM

 Comes on DTC stored

Click here

P0180 Fuel Temperature Sensor "A" Circuit

1. Open or short in fuel temperature sensor circuit

2. Fuel temperature sensor

3. ECM

 Comes on DTC stored

Click here

P0182 Fuel Temperature Sensor "A" Circuit Low Input

1. Open or short in fuel temperature sensor circuit

2. Fuel temperature sensor

3. ECM

 Comes on DTC stored

Click here

P0183 Fuel Temperature Sensor "A" Circuit High Input

1. Open or short in fuel temperature sensor circuit

2. Fuel temperature sensor

3. ECM

 Comes on DTC stored

Click here

P0190 Fuel Rail Pressure Sensor Circuit

1. Open or short in fuel pressure sensor circuit

2. Fuel pressure sensor

3. ECM

 Comes on DTC stored

Click here

P0192 Fuel Rail Pressure Sensor Circuit Low Input

1. Open or short in fuel pressure sensor circuit

2. Fuel pressure sensor

3. ECM

 Comes on DTC stored

Click here

P0193 Fuel Rail Pressure Sensor Circuit High Input

1. Open or short in fuel pressure sensor circuit

2. Fuel pressure sensor

3. ECM

 Comes on DTC stored

Click here

P0200 Injector Circuit / Open

1. Open or short in EDU circuit

2. Injector

3. EDU

4. ECM

 Comes on DTC stored

Click here

P0234 Turbocharger / Supercharger Overboost Condition

1. Open or short in VN turbo control circuit

2. Turbocharger

3. Turbocharger actuator

4. EGR valve assembly

5. MAF meter

6. Turbo pressure sensor

7. Vacuum hose

8. Exhaust system in clogged

9. ECM

 Comes on DTC stored

Click here

P0263 Cylinder 1 Contribution / Balance

1. Open or short in EDU circuit

2. Injector

3. EDU

4. ECU

5. Compression

 Does not come on DTC stored

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P0266 Cylinder 2 Contribution / Balance

1. Open or short in EDU circuit

2. Injector

3. EDU

4. ECU

5. Compression

 Does not come on DTC stored

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P0269 Cylinder 3 Contribution / Balance

1. Open or short in EDU circuit

2. Injector

3. EDU

4. ECU

5. Compression

 Does not come on DTC stored

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P0272 Cylinder 4 Contribution / Balance

1. Open or short in EDU circuit

2. Injector

3. EDU

4. ECU

5. Compression

 Does not come on DTC stored

Click here

P0299 Turbocharger / Supercharger Underboost

1. Open or short in VN turbo control circuit

2. Turbocharger

3. Turbocharger actuator

4. EGR valve assembly

5. MAF meter

6. Turbo pressure sensor

7. Exhaust system and intake system are modified or clogged

8. ECM

 Comes on DTC stored

Click here

P0335 Crankshaft Position Sensor "A" Circuit

1. Open or short in crankshaft position sensor circuit

2. Crankshaft position sensor

3. Crankshaft angle sensor plate

4. ECM

 Comes on DTC stored

Click here

P0339 Crankshaft Position Sensor "A" Circuit Intermittent

1. Open or short in crankshaft position sensor circuit

2. Crankshaft position sensor

3. Crankshaft angle sensor plate

4. ECM

 Does not come on DTC stored

Click here

P0340 Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor)

1. Open or short in camshaft position sensor circuit

2. Camshaft position sensor

3. Camshaft drive gear

4. ECM

 Comes on DTC stored

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P0400 Exhaust Gas Recirculation Flow

1. Open or short in EGR valve circuit

2. EGR valve

3. ECM

 Comes on DTC stored

Click here

P0405 Exhaust Gas Recirculation Sensor "A" Circuit Low

1. Open in EGR valve position sensor circuit

2. EGR valve

3. ECM

 Comes on DTC stored

Click here

P0406 Exhaust Gas Recirculation Sensor "A" Circuit High

1. Short in EGR valve position sensor circuit

2. EGR valve

3. ECM

 Comes on DTC stored

Click here

P0488 Exhaust Gas Recirculation Throttle Position Control Range / Performance

1. Open or short in throttle control motor circuit

2. Throttle control motor

3. ECM

 Comes on DTC stored

Click here

P0500 Vehicle Speed Sensor "A"

1. Open or short in vehicle speed sensor circuit

2. Vehicle speed sensor

3. Combination meter

4. Tachograph

5. ECM

 Blinking* DTC stored

Click here

P0504 Brake Switch "A" / "B" Correlation

1. Short in stop light switch signal circuit

2. Stop light switch

3. ECM

 Does not come on DTC stored

Click here

P0544 Exhaust GAS Temperature Sensor Circuit (Bank 1 Sensor 1)

1. Open or short in exhaust gas temperature sensor (on upstream) circuit

2. Exhaust gas temperature sensor (on upstream)

3. ECM

 Comes on DTC stored

Click here

P0545 Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 1)

1. Open or short in exhaust gas temperature sensor (on upstream) circuit

2. Exhaust gas temperature sensor (on upstream)

3. ECM

 Comes on DTC stored

Click here

P0546 Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 1)

1. Open or short in exhaust gas temperature sensor (on upstream) circuit

2. Exhaust gas temperature sensor (on upstream)

3. ECM

 Comes on DTC stored

Click here

P0560 System Voltage

1. Open in back-up power source circuit

2. Low battery voltage

3. Voltage converter

4. ECM

 Comes on DTC stored

Click here

P0606 ECM / PCM Processor ECM

Does not

come on

 DTC stored

Click here

P0607 Control Module Performance ECM Comes on DTC stored

Click here

P0617 Starter Relay Circuit High

1. Starter relay circuit

2. Ignition switch

3. ECM

 Comes on DTC stored

Click here

P0627 Fuel Pump Control Circuit / Open

1. Supply pump (suction control valve)

2. Open or short in supply pump (suction control valve) circuit

3. Common rail assembly

4. ECM

 Comes on DTC stored

Click here

P0630 VIN not Programmed or Mismatch - ECM / PCM ECM Comes on DTC stored

Click here

P1229 Fuel Pump System

1. Supply pump (suction control valve)

2. Open or short in supply pump (suction control valve) circuit

3. Common rail assembly

4. ECM

 Comes on DTC stored

Click here

P1238 Injector Malfunction

Main:

1. Injector

2. EDU (P0200 is set simultaneously)

3. Open or short in engine wire harness (P0200 is simulaneously)

4. Connector connection (P200 is set simulaneously)

5. Compression pressure

Related:

1. Valve timing

2. ECM

 Comes on DTC stored

Click here

P1251 Turbocharger / Supercharger Overboost Condition (Too High)

1. Open or short in VN turbo control circuit

2. Turbocharger

3. Turbocharger actuator

4. EGR valve assembly

5. ECM

 Comes on DTC stored

Click here

P1425 Differential Pressure Sensor Circuit

1. Open or short in differential pressure sensor circuit

2. Incorrect differential pressure sensor hose routing

3. Differential pressure sensor

4. ECM

 Comes on DTC stored

Click here

P1426 Differential Pressure Sensor Installation Error

1. Incorrect arrangement differential pressure sensor hose piping

2. Differential pressure sensor vacuum hose is clogged

3. Blockage in vacuum transmitting pipe sub-assembly

4. Differential pressure sensor

5. ECM

 Comes on DTC stored

Click here

P1427 Differential Pressure Sensor Circuit Low

1. Open or short in differential pressure sensor circuit

2. Incorrect differential pressure sensor hose routing

3. Differential pressure sensor

4. ECM

 Comes on DTC stored

Click here

P1428 Differential Pressure Sensor Circuit High

1. Open or short in differential pressure sensor circuit

2. Incorrect differential pressure sensor hose routing

3. Differential pressure sensor

4. ECM

 Comes on DTC stored

Click here

P1530 Engine Emergency Halt Switch

1. Emergency halt switch circuit

2. Emergency halt switch

3. ECM

 Does not comes on DTC stored

Click here

P1601 Injector Correction Circuit Malfunction (EEPROM)

1. Injector compensation code

2. ECM

 Comes on DTC stored

Click here

P1611 IC Circuit Malfunction ECM Comes on DTC stored

Click here

P1674 Solenoid for Exhaust Brake Circuit Malfunction

1. Open or short in exhaust brake solenoid circuit

2. Exhaust brake solenoid

3. ECM

 Comes on DTC stored

Click here

P2002 Particulate Trap Efficiency Below Threshold (Bank1)

1. Exhaust gas temperature sensor

2. Differential pressure sensor

3. DPF manifold converter

4. Open or short in differential pressure sensor circuit

5. Open or short in exhaust gas temperature sensor circuit

6. ECM

 Comes on DTC stored

Click here

P2031 Exhaust Gas Temperature Sensor Circuit (Bank 1 Sensor 2)

1. Open or short in exhaust gas temperature sensor (on downstream) circuit

2. Exhaust gas temperature sensor (on downstream)

3. ECM

 Comes on DTC stored

Click here

P2032 Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 2)

1. Open or short in exhaust gas temperature sensor (on downstream) circuit

2. Exhaust gas temperature sensor (on downstream)

3. ECM

 Comes on DTC stored

Click here

P2033 Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 2)

1. Open or short in exhaust gas temperature sensor (on downstream) circuit

2. Exhaust gas temperature sensor (on downstream)

3. ECM

 Comes on DTC stored

Click here

P2120 Throttle / Pedal Position Sensor / Switch "D" Circuit

1. Open or short in accelerator pedal position sensor circuit

2. Accelerator pedal position sensor

3. ECM

 Comes on DTC stored

Click here

P2121 Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance

1. Open or short in accelerator pedal position sensor circuit

2. Accelerator pedal position sensor

3. ECM

 Comes on DTC stored

Click here

P2122 Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input

1. Open or short in accelerator pedal position sensor circuit

2. Accelerator pedal position sensor

3. ECM

 Comes on DTC stored

Click here

P2123 Throttle / Pedal Position Sensor / Switch "D" Circuit High Input

1. Open or short in accelerator pedal position sensor circuit

2. Accelerator pedal position sensor

3. ECM

 Comes on DTC stored

Click here

P2125 Throttle / Pedal Position Sensor / Switch "E" Circuit

1. Open or short in accelerator pedal position sensor circuit

2. Accelerator pedal position sensor

3. ECM

 Comes on DTC stored

Click here

P2127 Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input

1. Open or short in accelerator pedal position sensor circuit

2. Accelerator pedal position sensor

3. ECM

 Comes on DTC stored

Click here

P2128 Throttle / Pedal Position Sensor / Switch "E" Circuit High Input

1. Open or short in accelerator pedal position sensor circuit

2. Accelerator pedal position sensor

3. ECM

 Comes on DTC stored

Click here

P2138 Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation

1. Open or short in accelerator pedal position sensor circuit

2. Accelerator pedal position sensor

3. ECM

 Comes on DTC stored

Click here

P2226 Barometric Pressure Circuit ECM Comes on DTC stored

Click here

P2227 Barometric Pressure Circuit Range / Performance ECM Comes on DTC stored

Click here

P2228 Barometric Pressure Circuit Low Input ECM Comes on DTC stored

Click here

P2229 Barometric Pressure Circuit High Input ECM Comes on DTC stored

Click here

U1123 Lost Communication with Variable Nozzle Type Turbo Charger Module

1. Open or short in turbo actuator circuit

2. Turbocharger sub-assembly

3. ECM

 Comes on DTC stored

Click here

Tech Tips

*: If the MIL is blinking, the DTC cannot be cleared using the tester.