Possible causes – Engine Control Module (ECM) may be faulty– ECM harness power supply circuit is open or shorted– ECM harness ground circuit is open or shorted Tech description Check the ECM fuse, if fuse is OK try erasing the code first and if the code comes back you may have to reprogram or replaced…
Tag: TOYOTA
P0630 TOYOTA VIN Not Programmed or Mismatch
Possible causes – Engine Control Module (ECM) Programming error– Vehicle Identification Number (VIN) not programmed to ECM– Faulty or wrong ECM Tech description If a new ECM is installed in a vehicle, the Vehicle Identification Number (VIN) has to be reprogrammed to the new Engine Control Module (ECM). There is a factory service bulletin for…
P1455 TOYOTA Vapor Reducing Fuel Tank System Malfunction
Possible causes – EVAP system large leak detected Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P2120 TOYOTA Throttle Pedal Position Sensor/Switch D Circuit
Possible causes – Faulty Accelerator Pedal Position (APP) Sensor– Accelerator Pedal Position (APP) Sensor harness is open or shorted– Accelerator Pedal Position (APP) Sensor circuit poor electrical connection– Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2120 TOYOTA OBD Code Description The Accelerator Pedal Position (APP) sensor…
P2122 TOYOTA Throttle Pedal Position Sensor/Switch D Circuit Input Low
Possible causes – Faulty Accelerator Pedal Position (APP) Sensor– Accelerator Pedal Position (APP) Sensor harness is open or shorted– Accelerator Pedal Position (APP) Sensor circuit poor electrical connection– Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2122 TOYOTA OBD Code Description The Accelerator Pedal Position (APP) sensor…
P0012 TOYOTA Camshaft Position A Timing Over-Retarded Bank 1
Possible causes – Dirty or low engine oil– Faulty variable valve timing (VVT)– Faulty oil control valve (OCV)– Variable Valve Timing (VVT) harness is open or shorted– Oil Control Valve (OCV) harness circuit is open or shorted– Damaged ECM Tech description There is a factory service bulletin for the following Toyota models: 2005-2007 Toyota CamryToyota…
P1349 TOYOTA Variable Valve Timing System Malfunction Bank 1
Possible causes – Dirty or low engine oil– Valve timing– Oil control valve– Variable Valve Timing controller assembly– Engine Control Module (ECM) Tech description There is a service bulletin for the following Toyota models: 2002 Toyota Camry2002 Toyota Solara2001
P0748 TOYOTA Pressure Control Solenoid A Electrical
Possible causes – Dirty transmission fluid– Low transmission fluid level– Faulty line pressure solenoid valve ‘A’– Line pressure solenoid valve ‘A’ harness is open or shorted– Line pressure solenoid valve ‘A’ circuit poor electrical connection Tech description There is a factory service bulletin for the 2004 Toyota Sienna2004 Toyota Sienna Factory Service Bulletin OBDII Code…
P0401 2001 TOYOTA CAMRY Exhaust Gas Recirculation Flow Insufficient Detected
Possible causes – EGR passage clogged– Faulty EGR Vacuum Modulator Valve– Faulty EGR Valve– Faulty EGR solenoid valve– EGR solenoid valve harness is open or shorted– EGR solenoid valve circuit poor electrical connection– Dead (Weak) battery– Faulty EGR temperature sensor and circuit– Exhaust gas leaks Tech description EGR flow malfunction could be caused by a…
P0401 TOYOTA Exhaust Gas Recirculation Flow Insufficient Detected
Possible causes – EGR passage clogged– Faulty EGR Vacuum Modulator Valve– Faulty EGR Valve– Faulty EGR solenoid valve– EGR solenoid valve harness is open or shorted– EGR solenoid valve circuit poor electrical connection– Dead (Weak) battery– Faulty EGR temperature sensor and circuit– Exhaust gas leaks Tech description EGR flow malfunction could be caused by a…