Category Archives: OBDII Powertrain Codes

P0631

P0631 OBD Code Definition:
P0631 VIN Not Programmed or Incompatible Transmission Control Module (TCM)
P0631 OBD Code Description: Continue reading

P0632

P0632 OBD Code Definition:
P0632 Odometer Not Programmed or Mismatch
P0632 OBD Code Description: Continue reading

P0634

P0634 OBD Code Definition:
P0634 Transmission Control Module Overtemperature
P0634 OBD Code Description: Continue reading

P0639

P0639 OBD Code Definition:
P0639 Throttle Actuator Control Range/Performance
P0639 OBD Code Description: Continue reading

P0638

P0638 OBD Code Definition:
P0638 Throttle Actuator Control Range/Performance
P0638 OBD Code Description: Continue reading

P0637

P0637 OBD Code Definition:
P0637 Power Steering Control Circuit High
P0637 OBD Code Description: Continue reading

P0642

P0642 OBD Code Definition:
P0642 Sensor Voltage Circuit A Low Voltage
P0642 OBD Code Description: Continue reading

P0644

P0644 OBD Code Definition:
P0644 Driver Display Serial Communication Circuit
P0644 OBD Code Description: Continue reading

P0643

P0643 OBD Code Definition:
P0643 Sensor Reference Voltage A Circuit High
P0643 OBD Code Description: Continue reading

P0646

P0646 OBD Code Definition:
P0646 Air Conditioning Clutch Relay Circuit Low
P0646 OBD Code Description: Continue reading

P0645

P0645 OBD Code Definition:
P0645 Air Conditioning Clutch Relay Circuit Malfunction
P0645 OBD Code Description: Continue reading

P0647

P0647 OBD Code Definition:
P0647 Air Conditioning (A/C) Clutch Relay Control Circuit High
P0647 OBD Code Description: Continue reading