Engine. Lexus Is250, Is220D. Gse20 Ale20
2Ad-Fhv Engine Control System. Lexus Is250, Is220D. Gse20 Ale20
Ecd System -- Diagnostic Trouble Code Chart |
- HINT:
- Parameters listed in the chart may not be exactly the same as your readings due to the type of instrument or other factors.
- If a DTC is displayed, check the trouble area for the DTC listed in the table below. For details of each DTC, refer to the page given in the right column.
| DTC No. | Detection Item | Trouble Area | MIL | Memory | See page |
| P0031 | Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1) | 1. Open in A/F sensor heater circuit 2. A/F sensor heater 3. A/F relay 4. ECM | Comes on | DTC Stored | Click here |
| P0032 | Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1) | 1. Short in A/F sensor heater circuit 2. A/F sensor heater 3. A/F relay 4. ECM | Comes on | DTC Stored | Click here |
| P0045 | Turbocharger / Supercharger Boost Control Solenoid Circuit / Open | 1. VRV 2. Open or short in VRV circuit 3. ECM | Comes on | DTC Stored | Click here |
| P0069 | MAP Sensor Too High or Too Low | 1. 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. Common rail assembly (pressure discharge valve) 3. Short in supply pump (suction control valve) circuit 4. ECM | Comes on | DTC Stored | Click here |
| P0093 | Fuel System Leak Detected - Large Leak | 1. Fuel line between supply pump and common rail 2. Fuel line between common rail and each injector 3. Supply pump 4. Common rail 5. Injectors 6 .Pressure discharge valve 7. Open or short in EDU circuit (P0200 set simultaneously) 8. Open or short in injector circuit 9. EDU (P0200 set simultaneously) 10. ECM | Comes on | DTC Stored | Click here |
| P0095 | Intake Air Temperature Sensor 2 Circuit | 1. Open or short in diesel turbo IAT sensor circuit 2. Diesel turbo IAT sensor 3. ECM | Comes on | DTC Stored | Click here |
| P0097 | Intake Air Temperature Sensor 2 Circuit Low | 1. Open or short in diesel turbo IAT sensor circuit 2. Diesel turbo IAT sensor 3. ECM | Comes on | DTC Stored | Click here |
| P0098 | Intake Air Temperature Sensor 2 Circuit High | 1. Open or short in diesel turbo IAT sensor circuit 2. Diesel turbo IAT sensor 3. ECM | Comes on | DTC Stored | Click here |
| P0100 | Mass or Volume Air Flow Circuit | 1. Open or short in mass air flow meter circuit 2. Mass air flow meter 3. ECM | Comes on | DTC Stored | Click here |
| P0101 | Mass or Volume Air Flow Circuit Range / Performance Problem | 1. Mass air flow meter | Comes on | DTC Stored | Click here |
| P0102 | Air Flow Meter Circuit Low Input | 1. Open or short in mass air flow meter circuit 2. Mass air flow meter 3. ECM | Comes on | DTC Stored | Click here |
| P0103 | Air Flow Meter Circuit High Input | 1. Open or short in mass air flow meter circuit 2. Mass air flow meter 3. ECM | Comes on | DTC Stored | Click here |
| P0105 | Manifold Absolute Pressure / Barometric Pressure Circuit | 1. Open or short in manifold absolute pressure sensor circuit 2. Manifold absolute pressure sensor 3. Turbocharger assembly 4. EGR valve assembly 5. ECM | Comes on | DTC Stored | Click here |
| P0106 | Manifold Absolute Pressure / Barometric Pressure Circuit Range / Performance Problem | 1. Manifold absolute pressure sensor | Comes on | DTC Stored | Click here |
| P0107 | Manifold Absolute Pressure / Barometric Pressure Circuit Low Input | 1. Open or short in manifold absolute pressure sensor circuit 2. Manifold absolute pressure sensor 3. Turbocharger assembly 4. EGR valve assembly 5. ECM | Comes on | DTC Stored | Click here |
| P0108 | Manifold Absolute Pressure / Barometric Pressure Circuit High Input | 1. Open or short in manifold absolute pressure sensor circuit 2. Manifold absolute pressure sensor 3. Turbocharger assembly 4. EGR valve assembly 5. ECM | Comes on | DTC Stored | Click here |
| P0110 | Intake Air Temperature Circuit | 1. Open or short in IAT sensor circuit 2. IAT sensor 3. ECM | Comes on | DTC Stored | Click here |
| P0112 | Intake Air Temperature Circuit Low Input | 1. Open or short in IAT sensor circuit 2. IAT sensor 3. ECM | Comes on | DTC Stored | Click here |
| P0113 | Intake Air Temperature Circuit High Input | 1. Open or short in IAT sensor circuit 2. IAT sensor 3. ECM | Comes on | DTC Stored | Click here |
| P0115 | Engine Coolant Temperature Circuit | 1. Open or short in ECT sensor circuit 2. ECT sensor 3. ECM | Comes on | DTC Stored | Click here |
| P0116 | Engine Coolant Temperature Circuit Range / Performance Problem | 1. Engine coolant temperature sensor | Comes on | DTC Stored | Click here |
| P0117 | Engine Coolant Temperature Circuit Low Input | 1. Open or short in ECT sensor circuit 2. ECT sensor 3. ECM | Comes on | DTC Stored | Click here |
| P0118 | Engine Coolant Temperature Circuit High Input | 1. Open or short in ECT sensor circuit 2. ECT sensor 3. ECM | Comes on | DTC Stored | Click here |
| P0120 | Throttle / Pedal Position Sensor / Switch "A" Circuit | 1. Open or short in throttle valve 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. Throttle position sensor 2. Open or short in VLU circuit 3. Open in VC circuit 4. ECM | Comes on | DTC Stored | Click here |
| P0123 | Throttle / Pedal Position Sensor / Switch "A" Circuit High Input | 1. Throttle position sensor 2. Open in E2 circuit 3. Short in VC and VLU circuits 4. ECM | Comes on | DTC Stored | Click here |
| P0168 | Fuel Temperature Too High | 1. Fuel temperature sensor | 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 |
| P0191 | Fuel Rail Pressure Sensor Circuit Range / Performance | 1. Fuel pressure sensor | 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. E-VRV for turbocharger control 2. Open or short in VRV circuit 3. Turbocharger 4. Vacuum hose 5. EGR valve 6. ECM | Comes on | DTC Stored | Click here |
| P0299 | Turbocharger / Supercharger Underboost | 1. E-VRV for turbocharger control 2. Open or short in VRV circuit 3. Turbocharger 4. Vacuum hose 5. EGR valve 6. 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 position sensor plate No. 1 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 position sensor plate No. 1 4. ECM | - | 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. Timing sprocket 4. ECM | Comes on | DTC Stored | Click here |
| P0400 | Exhaust Gas Recirculation Flow | 1. EGR valve stuck 2. EGR valve does not move smoothly 3. Open or short in EGR circuit 4. Open or short in EGR valve position sensor circuit 5. EGR valve position sensor 6. ECM | Comes on | DTC Stored | Click here |
| P0405 | Exhaust Gas Recirculation Sensor "A" Circuit Low | 1. Open or short in EGR valve position sensor circuit 2. EGR valve position sensor 3. ECM | Comes on | DTC Stored | Click here |
| P0406 | Exhaust Gas Recirculation Sensor "A" Circuit High | 1. Open or short in EGR valve position sensor circuit 2. EGR valve position sensor 3. ECM | Comes on | DTC Stored | Click here |
| P0488 | Exhaust Gas Recirculation Throttle Position Control Range / Performance | 1. Throttle valve stuck 2. Throttle valve does not move smoothly 3. Open or short in throttle valve circuit 4. Open or short in throttle valve position sensor circuit 5. Throttle position sensor (built in diesel throttle body assembly) 6. ECM | Comes on | DTC Stored | Click here |
| P0500 | Vehicle Speed Sensor "A" | 1. Open or short in speed sensor circuit 2. Skid control ECU 3. Combination meter 4. ECM | Comes on | DTC Stored | Click here |
| P0504 | Brake Switch "A" / "B" Correlation | 1. Short in stop light switch signal circuit 2. Stop light switch 3. ECM | - | DTC Stored | Click here |
| P0516 | Battery Temperature Sensor Circuit Low | 1. Battery thermometer sensor 2. Short in battery thermometer sensor circuit 3. ECM | Comes on | DTC Stored | Click here |
| P0517 | Battery Temperature Sensor Circuit High | 1. Battery thermometer sensor 2. Open in battery thermometer sensor circuit 3. ECM | Comes on | DTC Stored | Click here |
| P0544 | Exhaust GAS Temperature Sensor Circuit (Bank 1 Sensor 1) | 1. Open or short in exhaust gas temperature sensor (upstream) circuit 2. Exhaust gas temperature sensor (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 (upstream) circuit 2. Exhaust gas temperature sensor (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 (upstream) circuit 2. Exhaust gas temperature sensor (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. ECM | Comes on | DTC Stored | Click here |
| P0606 | ECM / PCM Processor | 1. ECM | Comes on | DTC Stored | Click here |
| P0607 | Control Module Performance | 1. ECM | Comes on | DTC Stored | Click here |
| P0617 | Starter Relay Circuit High | 1. Clutch start switch 2. Cranking holding function circuit 3. ECM | Comes on | DTC Stored | Click here |
| P0627 | Fuel Pump Control Circuit / Open | 1. Open or short in suction control valve circuit 2. Suction control valve 3. ECM | Comes on | DTC Stored | Click here |
| P1229 | Fuel Pump System | 1. Short in supply pump (suction control valve) circuit 2. Supply pump (suction control valve) 3. 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 set simultaneously) 4. Connector connection (P0200 is set simultaneously) 5. Compression pressure 6. Valve clearance Related: 1. Valve timing 2. ECM | Comes on | DTC Stored | Click here |
| P1251 | Turbocharger / Supercharger Overboost Condition (Too High) | 1. E-VRV for turbocharger control 2. Open or short in VRV circuit 3. Turbocharger 4. Vacuum hose 5. EGR valve 6. ECM | Comes on | DTC Stored | Click here |
| P1271 | Fuel Regulator Circuit Malfunction (EDU Drive) | 1. Open or short in pressure discharge valve circuit 2. Open or short in pressure discharge valve itself 3. EDU 4. ECM | Comes on | DTC Stored | Click here |
| P1272 | Fuel Pressure Regulator Malfunction | 1. Open or short in pressure discharge valve circuit (P1271 is set simultaneously) 2. Pressure discharge valve 3. Supply pump 4. ECM | Comes on | DTC Stored | Click here |
| P1386 | Injector for Exhaust Fuel Addition | Main: 1. Open or short in exhaust fuel addition injector circuit 2. Exhaust fuel addition injector 3. DPNR catalytic converter (Manifold converter sub-assembly) Related: 1. Open in exhaust temperature sensor circuit 2. A/F sensor 3. Exhaust gas temperature sensor 4. Supply pump assembly 5. Mass air flow meter 6. Fuel leaks in exhaust fuel addition injector 7. Main injector 8. Cylinder compression pressure 9. Valve clearance 10. Valve timing 11. Air intake system has blockages 12. Air intake system has leakage 13. Exhaust system has blockages 14. Exhaust system has leakage 15. EGR system has blockages 16. EGR system has leakage 17. 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 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 |
| P1526 | Fuel Route Switching Valve Relay Stuck ON | 1. Short in fuel route switching valve circuit 2. FUEL PCV relay 3. ECM | - | DTC Stored | Click here |
| P1527 | Fuel Route Switching Valve Relay Stuck OFF | 1. Open or short in fuel route switching valve circuit 2. FUEL PCV relay 3. ECM | - | DTC Stored | Click here |
| P1550 | Battery Current Sensor Circuit | 1. Open or short in battery current sensor circuit 2. Battery current sensor 3. ECM | - | DTC Stored | Click here |
| P1551 | Battery Current Sensor Circuit Low | 1. Short in battery current sensor circuit 2. Battery current sensor 3. ECM | - | DTC Stored | Click here |
| P1552 | Battery Current Sensor Circuit High | 1. Open in battery current sensor circuit 2. Battery current sensor 3. ECM | - | DTC Stored | Click here |
| P1601 | EEPROM Error - Injector Correction Value, DPNR Thermal Degradation Record | 1. Injector compensation code 2. ECM | - | DTC Stored | Click here |
| P1602 | Deterioration of Battery | 1. Battery 2. ECM back-up power source circuit | Comes on | DTC Stored | Click here |
| P1611 | IC Circuit Malfunction | 1. ECM | Comes on | DTC Stored | Click here |
| P1625 | Idle Signal Transmitter Circuit | 1. Open or short in idle control circuit 2. ECM | Comes on | DTC Stored | Click here |
| P2002 | Particulate Trap Efficiency Below Threshold (Bank1) | 1. DPNR catalytic converter (Manifold converter sub-assembly) 2. Differential pressure sensor 3. Differential pressure sensor vacuum hose is clogged 4. Blockage in vacuum transmitting pipe sub-assembly 5. Exhaust gas temperature sensor 6. Fuel injector 7. Exhaust fuel addition injector 8. Trubocharger sub-assembly 9. Exhaust gas leaks in TOYOTA D-CAT 10. Mass air flow meter 11. 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 (downstream) circuit 2. Exhaust gas temperature sensor (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 (downstream) circuit 2. Exhaust gas temperature sensor (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 (downstream) circuit 2. Exhaust gas temperature sensor (downstream) 3. ECM | Comes on | DTC Stored | Click here |
| P2047 | Reductant Injector Circuit / Open (Bank 1 Unit 1) | 1. Open in exhaust fuel addition injector circuit 2. Exhaust fuel addition injector 3. ECM | Comes on | DTC Stored | Click here |
| P2048 | Short to GND in Reductant Injector Circuit (Bank 1) | 1. Open in exhaust fuel addition injector circuit 2. Exhaust fuel addition injector 3. ECM | Comes on | DTC Stored | Click here |
| P2049 | Short to B+ in Reductant Injector Circuit (Bank 1) | 1. Open in exhaust fuel addition injector circuit 2. Exhaust fuel addition injector 3. ECM | Comes on | DTC Stored | Click here |
| P2120 | Throttle / Pedal Position Sensor / Switch "D" Circuit | 1. Accelerator pedal position sensor 2. Accelerator pedal 3. Accelerator pedal rod (arm) deformed 4. ECM | Comes on | DTC Stored | Click here |
| P2121 | Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance | 1. 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. Accelerator pedal position sensor 2. Open in VCPA circuit 3. VPA circuit open or ground short 4. Accelerator pedal 5. Accelerator pedal rod (arm) deformed 6. ECM | Comes on | DTC Stored | Click here |
| P2123 | Throttle / Pedal Position Sensor / Switch "D" Circuit High Input | 1. Accelerator pedal position sensor 2. Open in EPA circuit 3. Accelerator pedal 4. Accelerator pedal rod (arm) deformed 5. ECM | Comes on | DTC Stored | Click here |
| P2125 | Throttle / Pedal Position Sensor / Switch "E" Circuit | 1. Accelerator pedal position sensor 2. Accelerator pedal 3. Accelerator pedal rod (arm) deformed 4. ECM | Comes on | DTC Stored | Click here |
| P2127 | Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input | 1. Accelerator pedal position sensor 2. Open in VCP2 circuit 3. VPA2 circuit open or ground short 4. Accelerator pedal 5. Accelerator pedal rod (arm) deformed 6. ECM | Comes on | DTC Stored | Click here |
| P2128 | Throttle / Pedal Position Sensor / Switch "E" Circuit High Input | 1. Accelerator pedal position sensor 2. Open in EPA2 circuit 3. Accelerator pedal 4. Accelerator pedal rod (arm) deformed 5. ECM | Comes on | DTC Stored | Click here |
| P2138 | Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation | 1. Short in VPA and VPA2 circuits 2. Accelerator pedal position sensor 3. Accelerator pedal 4. Accelerator pedal rod (arm) deformed 5. ECM | Comes on | DTC Stored | Click here |
| P2226 | Barometric Pressure Circuit | 1. ECM | Comes on | DTC Stored | Click here |
| P2228 | Barometric Pressure Circuit Low Input | 1. ECM | Comes on | DTC Stored | Click here |
| P2229 | Barometric Pressure Circuit High Input | 1. ECM | Comes on | DTC Stored | Click here |
| P2237 | Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1) | 1. ECM | Comes on | DTC Stored | Click here |
| P2238 | Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1) | 1. Open or short in A/F sensor circuit 2. A/F sensor 3. A/F sensor heater 4. A/F relay 5. A/F sensor heater and relay circuit 6. ECM | Comes on | DTC Stored | Click here |
| P2239 | Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1) | 1. Open or short in A/F sensor circuit 2. A/F sensor 3. A/F sensor heater 4. A/F relay 5. A/F sensor heater and relay circuit 6. ECM | Comes on | DTC Stored | Click here |
| P2252 | Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1) | 1. Open or short in A/F sensor circuit 2. A/F sensor 3. A/F sensor heater 4. A/F relay 5. A/F sensor heater and relay circuit 6. ECM | Comes on | DTC Stored | Click here |
| P2253 | Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1) | 1. Open or short in A/F sensor circuit 2. A/F sensor 3. A/F sensor heater 4. A/F relay 5. A/F sensor heater and relay circuit 6. ECM | Comes on | DTC Stored | Click here |
| U0155 | Lost Communication with Instrument Panel Cluster Control Module (Combination Meter) | 1. ECM 2. Gateway ECU 3. Combination meter circuit 4. Can communication circuit 5. Multiplex communication circuit | - | DTC Stored | Click here |