Diagnostic trouble code chart 2AD-FHV

HINT:
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.

 

DTC No.Detection ItemTrouble AreaMILMemory
P0031Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1)- Open in A/F sensor heater circuit
- A/F sensor heater
- A/F sensor heater relay
- ECM
Comes onDTC Stored
P0032Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1)- Open in A/F sensor heater circuit
- A/F sensor heater
- A/F sensor heater relay
- ECM
Comes onDTC Stored
P0045Turbocharger / Supercharger Boost Control Solenoid Circuit / Open- VRV
- Open or short in VRV circuit
- ECM
Comes onDTC Stored
P0069MAP Sensor Too High or Too LowECMComes onDTC Stored
P0087Fuel Rail / System Pressure - Too Low- Open or short in fuel pressure sensor circuit
- Fuel pressure sensor
- ECM
Comes onDTC Stored
P0088Fuel Rail / System Pressure - Too High- Supply pump (suction control valve)
- Common rail assembly (pressure discharge valve)
- Short in supply pump (suction control valve) circuit
- ECM
Comes onDTC Stored
P0093Fuel System Leak Detected - Large Leak- Fuel line between supply pump and common rail
- Fuel line between common rail and each injector
- Supply pump
- Common rail
- Injectors
- Pressure limiter
- Open or short in EDU circuit (P0200 set simultaneously)
- Open or short in injector circuit
- EDU (P0200 set simultaneously)
- ECM
Comes onDTC Stored
P0095Intake Air Temperature Sensor 2 Circuit- Open or short in diesel turbo IAT sensor circuit
- Diesel turbo IAT sensor
- ECM
Comes onDTC Stored
P0097Intake Air Temperature Sensor 2 Circuit Low- Open or short in diesel turbo IAT sensor circuit
- Diesel turbo IAT sensor
- ECM
Comes onDTC Stored
P0098Intake Air Temperature Sensor 2 Circuit High- Open or short in diesel turbo IAT sensor circuit
- Diesel turbo IAT sensor
- ECM
Comes onDTC Stored
P0100Mass or Volume Air Flow Circuit- Open or short in mass air flow meter circuit
- Mass air flow meter
- ECM
Comes onDTC Stored
P0101Mass or Volume Air Flow Circuit Range / Performance ProblemMass air flow meterComes onDTC Stored
P0102Air Flow Meter Circuit Low Input- Open or short in mass air flow meter circuit
- Mass air flow meter
- ECM
Comes onDTC Stored
P0103Air Flow Meter Circuit High Input- Open or short in mass air flow meter circuit
- Mass air flow meter
- ECM
Comes onDTC Stored
P0105Manifold Absolute Pressure / Barometric Pressure Circuit- Open or short in manifold absolute pressure sensor circuit
- Manifold absolute pressure sensor
- Turbocharger assembly
- EGR valve assembly
- ECM
Comes onDTC Stored
P0106Manifold Absolute Pressure / Barometric Pressure Circuit Range / Performance ProblemManifold absolute pressure sensorComes onDTC Stored
P0107Manifold Absolute Pressure / Barometric Pressure Circuit Low Input- Open or short in manifold absolute pressure sensor circuit
- Manifold absolute pressure sensor
- Turbocharger assembly
- EGR valve assembly
- ECM
Comes onDTC Stored
P0108Manifold Absolute Pressure / Barometric Pressure Circuit High Input- Open or short in manifold absolute pressure sensor circuit
- Manifold absolute pressure sensor
- Turbocharger assembly
- EGR valve assembly
- ECM
Comes onDTC Stored
P0110Intake Air Temperature Circuit- Open or short in IAT sensor circuit
- IAT sensor (built into mass air flow meter)
- ECM
Comes onDTC Stored
P0112Intake Air Temperature Circuit Low Input- Open or short in IAT sensor circuit
- IAT sensor (built into mass air flow meter)
- ECM
Comes onDTC Stored
P0113Intake Air Temperature Circuit High Input- Open or short in IAT sensor circuit
- IAT sensor (built into mass air flow meter)
- ECM
Comes onDTC Stored
P0115Engine Coolant Temperature Circuit- Open or short in ECT sensor circuit
- ECT sensor
- ECM
Comes onDTC Stored
P0116Engine Coolant Temperature Circuit Range / Performance ProblemEngine coolant temperature sensorComes onDTC Stored
P0117Engine Coolant Temperature Circuit Low Input- Open or short in ECT sensor circuit
- ECT sensor
- ECM
Comes onDTC Stored
P0118Engine Coolant Temperature Circuit High Input- Open or short in ECT sensor circuit
- ECT sensor
- ECM
Comes onDTC Stored
P0120Throttle / Pedal Position Sensor / Switch "A" Circuit- Open or short in throttle valve position sensor circuit
- Throttle position sensor
- ECM
Comes onDTC Stored
P0122Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input- Throttle position sensor
- Open or short in VLU circuit
- Open in VC circuit
- ECM
Comes onDTC Stored
P0123Throttle / Pedal Position Sensor / Switch "A" Circuit High Input- Throttle position sensor
- Open in E2 circuit
- VC and VLU circuits are short-circuited
- ECM
Comes onDTC Stored
P0168Fuel Temperature Too HighFuel temperature sensorComes onDTC Stored
P0180Fuel Temperature Sensor "A" Circuit- Open or short in fuel temperature sensor circuit
- Fuel temperature sensor
- ECM
Comes onDTC Stored
P0182Fuel Temperature Sensor "A" Circuit Low Input- Open or short in fuel temperature sensor circuit
- Fuel temperature sensor
- ECM
Comes onDTC Stored
P0183Fuel Temperature Sensor "A" Circuit High Input- Open or short in fuel temperature sensor circuit
- Fuel temperature sensor
- ECM
Comes onDTC Stored
P0190Fuel Rail Pressure Sensor Circuit- Open or short in fuel pressure sensor circuit
- Fuel pressure sensor
- ECM
Comes onDTC Stored
P0191Fuel Rail Pressure Sensor Circuit Range / PerformanceFuel pressure sensorComes onDTC Stored
P0192Fuel Rail Pressure Sensor Circuit Low Input- Open or short in fuel pressure sensor circuit
- Fuel pressure sensor
- ECM
Comes onDTC Stored
P0193Fuel Rail Pressure Sensor Circuit High Input- Open or short in fuel pressure sensor circuit
- fuel pressure sensor
- ECM
Comes onDTC Stored
P0200Injector Circuit / Open- Open or short in EDU circuit
- Injector
- EDU
- ECM
Comes onDTC Stored
P0234Turbocharger / Supercharger Overboost Condition- VRV for turbocharger
- Open or short in VRV circuit
- Turbocharger
- Vacuum hose
- EGR valve
- ECM
Comes onDTC Stored
P0299Turbocharger / Supercharger Underboost- VRV for turbocharger
- Open or short in VRV circuit
- Turbocharger
- Vacuum hose
- EGR valve
- ECM
Comes onDTC Stored
P0335Crankshaft Position Sensor "A" Circuit- Open or short in crankshaft position sensor circuit
- Crankshaft position sensor
- Crankshaft position sensor No. 1 plate
- ECM
Comes onDTC Stored
P0339Crankshaft Position Sensor "A" Circuit Intermittent- Open or short in crankshaft position sensor circuit
- Crankshaft position sensor
- Crankshaft position sensor No. 1 plate
- ECM
-DTC Stored
P0340Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor)- Open or short in camshaft position sensor
circuit
- Camshaft position sensor
- Pump drive shaft pulley
- ECM
Comes onDTC Stored
P0400Exhaust Gas Recirculation Flow- EGR valve stuck
- EGR valve does not move smoothly
- Open or short in E-VRV for EGR circuit
- Open or short in EGR valve position sensor circuit
- EGR valve position sensor
- Vacuum pump
- Vacuum hose connection loose
- ECM
Comes onDTC Stored
P0405Exhaust Gas Recirculation Sensor "A" Circuit Low- Open or short in EGR valve position sensor circuit
- EGR valve position sensor
- ECM
Comes onDTC Stored
P0406Exhaust Gas Recirculation Sensor "A" Circuit High- Open or short in EGR valve position sensor circuit
- EGR valve position sensor
- ECM
Comes onDTC Stored
P0488Exhaust Gas Recirculation Throttle Position Control Range / Performance- Throttle valve stuck
- Throttle valve does not move smoothly
- Open or short in throttle valve circuit
- Open or short in throttle valve position sensor circuit
- Throttle position sensor (built in diesel throttle body assembly)
- ECM
Comes onDTC Stored
P0500Vehicle Speed Sensor "A"- Open or short in speed sensor circuit
- Speed sensor
- Combination meter
- ECM
Comes onDTC Stored
P0504Brake Switch "A" / "B" Correlation- Short in stop light switch signal circuit
- Stop light switch
- ECM
-DTC Stored
P0516Battery Temperature Sensor Circuit Low- Battery current sensor
- Short in battery current sensor circuit
- ECM
-DTC Stored
P0517Battery Temperature Sensor Circuit High- Battery current sensor
- Open in battery current sensor circuit
- ECM
-DTC Stored
P0544Exhaust GAS Temperature Sensor Circuit (Bank 1 Sensor 1)- Open or short in exhaust gas temperature sensor (upstream) circuit
- Exhaust gas temperature sensor (upstream)
- ECM
Comes onDTC Stored
P0545Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 1)- Open or short in exhaust gas temperature sensor (upstream) circuit
- Exhaust gas temperature sensor (upstream)
- ECM
Comes onDTC Stored
P0546Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 1)- Open or short in exhaust gas temperature sensor (upstream) circuit
- Exhaust gas temperature sensor (upstream)
- ECM
Comes onDTC Stored
P0560System Voltage- Open in back-up power source circuit
- Low battery voltage
- ECM
Comes onDTC Stored
P0606ECM / PCM ProcessorECMComes onDTC Stored
P0607Control Module PerformanceECMComes onDTC Stored
P0617Starter Relay Circuit High- Starter relay circuit
- Ignition switch
- ECM
Comes onDTC Stored
P0627Fuel Pump Control Circuit / Open- Open or short in suction control valve circuit
- Suction control valve
- ECM
Comes onDTC Stored
P1229Fuel Pump System- Short in supply pump (suction control valve) circuit
- Supply pump (suction control valve)
- ECM
Comes onDTC Stored
P1238Injector MalfunctionMain:
- Injector
- EDU (P0200 is set simultaneously)
- Open or short in engine wire harness (P0200 is set simultaneously)
- Connector connection (P0200 is set simultaneously)
- Compression pressure
- Valve clearance
Related:
- Valve timing
- ECM
Comes onDTC Stored
P1251Turbocharger / Supercharger Overboost Condition (Too High)- VRV for turbocharger
- Open or short in VRV circuit
- Turbocharger
- Vacuum hose
- EGR valve
- ECM
Comes onDTC Stored
P1271Fuel Regulator Circuit Malfunction (EDU Drive)- Open or short in pressure discharge valve circuit
- Open or short in pressure discharge valve itself
- EDU
- ECM
Comes onDTC Stored
P1272Fuel Pressure Regulator Malfunction- Open or short in pressure discharge valve circuit (P1271 is set simultaneously)
- Pressure discharge valve
- Supply pump
- ECM
Comes onDTC Stored
P1386Injector for Exhaust Fuel AdditionMain:
- Open or short in exhaust fuel addition injector circuit
- Exhaust fuel addition injector
- DPNR catalytic converter (manifold converter sub-assembly)
Related:
- Open in exhaust temperature sensor circuit
- A/F sensor
- Exhaust gas temperature sensor
- Supply pump assembly
- Mass air flow meter
- Fuel leaks in exhaust fuel addition injector
- Main injector
- Cylinder compression pressure
- Valve clearance
- Valve timing
- Air intake system has blockages
- Air intake system has leakage
- Exhaust system has blockages
- Exhaust system has leakage
- EGR system has blockages
- EGR system has leakage
- ECM
Comes onDTC Stored
P1425Differential Pressure Sensor Circuit- Open or short in differential pressure sensor circuit
- Incorrect differential pressure sensor hose routing
- Differential pressure sensor
- ECM
Comes onDTC Stored
P1426Differential Pressure Sensor Installation Error- Incorrect differential pressure sensor hose routing
- Differential pressure sensor vacuum hose is clogged
- Blockage in Vacuum transmitting pipe sub-assembly
- Differential pressure sensor
- ECM
Comes onDTC Stored
P1427Differential Pressure Sensor Circuit Low- Open or short in differential pressure sensor circuit
- Incorrect differential pressure sensor hose routing
- Differential pressure sensor
- ECM
Comes onDTC Stored
P1428Differential Pressure Sensor Circuit High- Open or short in differential pressure sensor circuit
- Incorrect differential pressure sensor hose routing
- Differential pressure sensor
- ECM
Comes onDTC Stored
P1550Battery Current Sensor Circuit- Open or short in battery current sensor circuit
- Battery current sensor
- ECM
-DTC Stored
P1551Battery Current Sensor Circuit Low- Short in battery current sensor circuit
- Battery current sensor
- ECM
-DTC Stored
P1552Battery Current Sensor Circuit High- Open in battery current sensor circuit
- Battery current sensor
- ECM
-DTC Stored
P1601EEPROM Error - Injector Correction Value, DPNR Thermal Degradation RecordECMComes onDTC Stored
P1602Deterioration of Battery- Battery
- ECM back-up power source circuit
-DTC Stored
P1611IC Circuit MalfunctionECMComes onDTC Stored
P1625Idle Signal Transmitter Circuit- Open or short in idle control circuit
- ECM
Comes onDTC Stored
P2002Particulate Trap Efficiency Below Threshold (Bank1)- DPNR catalytic converter (Manifold converter sub-assembly)
- Differential pressure sensor
- Differential pressure sensor vacuum hose is clogged
- Blockage in Vacuum transmitting pipe sub-assembly
- Exhaust gas temperature sensor
- Exhaust gas leaks in TOYOTA D-CAT
- Mass air flow meter
- ECM
Comes onDTC Stored
P2031Exhaust Gas Temperature Sensor Circuit (Bank 1 Sensor 2)- Open or short in exhaust gas temperature sensor (downstream) circuit
- Exhaust gas temperature sensor (downstream)
- ECM
Comes onDTC Stored
P2032Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 2)- Open or short in exhaust gas temperature sensor (downstream) circuit
- Exhaust gas temperature sensor (downstream)
- ECM
Comes onDTC Stored
P2033Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 2)- Open or short in exhaust gas temperature sensor (downstream) circuit
- Exhaust gas temperature sensor (downstream)
- ECM
Comes onDTC Stored
P2047Reductant Injector Circuit / Open (Bank 1 Unit 1)- Open in exhaust fuel addition injector circuit
- Exhaust fuel addition injector
- ECM
Comes onDTC Stored
P2048Short to GND in Reductant Injector Circuit (Bank 1)- Open in exhaust fuel addition injector circuit
- Exhaust fuel addition injector
- ECM
Comes onDTC Stored
P2049Short to B+ in Reductant Injector Circuit (Bank 1)- Open in exhaust fuel addition injector circuit
- Exhaust fuel addition injector
- ECM
Comes onDTC Stored
P2120Throttle / Pedal Position Sensor / Switch "D" Circuit- Accelerator pedal position sensor
- Accelerator pedal
- Accelerator pedal rod (arm) deformed
- ECM
Comes onDTC Stored
P2121Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance- Accelerator pedal position sensor circuit
- Accelerator pedal position sensor
- ECM
Comes onDTC Stored
P2122Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input- Accelerator pedal position sensor
- Open in VCPA circuit
- VPA circuit open or ground short
- Accelerator pedal
- Accelerator pedal rod (arm) deformed
- ECM
Comes onDTC Stored
P2123Throttle / Pedal Position Sensor / Switch "D" Circuit High Input- Accelerator pedal position sensor
- Open in EPA circuit
- Accelerator pedal
- Accelerator pedal rod (arm) deformed
- ECM
Comes onDTC Stored
P2125Throttle / Pedal Position Sensor / Switch "E" Circuit- Accelerator pedal position sensor
- Accelerator pedal
- Accelerator pedal rod (arm) deformed
- ECM
Comes onDTC Stored
P2127Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input- Accelerator pedal position sensor
- Open in VCP2 circuit
- VPA2 circuit open or ground short
- Accelerator pedal
- Accelerator pedal rod (arm) deformed
- ECM
Comes onDTC Stored
P2128Throttle / Pedal Position Sensor / Switch "E" Circuit High Input- Accelerator pedal position sensor
- Open in EPA2 circuit
- Accelerator pedal
- Accelerator pedal rod (arm) deformed
- ECM
Comes onDTC Stored
P2138Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation- VPA and VPA2 circuit are short circuited
- Accelerator pedal position sensor
- Accelerator pedal
- Accelerator pedal rod (arm) deformed
- ECM
Comes onDTC Stored
P2226Barometric Pressure CircuitECMComes onDTC Stored
P2227Barometric Pressure Circuit Range / PerformanceECMComes onDTC Stored
P2228Barometric Pressure Circuit Low InputECMComes onDTC Stored
P2229Barometric Pressure Circuit High InputECMComes onDTC Stored
P2237Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1)ECMComes onDTC Stored
P2238Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1)- Open or short in A/F sensor circuit
- A/F sensor
- A/F sensor heater
- A/F sensor heater relay
- A/F sensor heater and relay circuit
- ECM
Comes onDTC Stored
P2239Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1)- Open or short in A/F sensor circuit
- A/F sensor
- A/F sensor heater
- A/F sensor heater relay
- A/F sensor heater and relay circuit
- ECM
Comes onDTC Stored
P2252Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1)- Open or short in A/F sensor circuit
- A/F sensor
- A/F sensor heater
- A/F sensor heater relay
- A/F sensor heater and relay circuit
- ECM
Comes onDTC Stored
P2253Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1)- Open or short in A/F sensor circuit
- A/F sensor
- A/F sensor heater
- A/F sensor heater relay
- A/F sensor heater and relay circuit
- ECM
Comes onDTC Stored