General Motors GM specific DTC OBD2 code: P1644 TP Output Circuit
General Motors GM specific DTC OBD2 code: P1645 EVAP Solenoid Output Circuit
General Motors GM specific DTC OBD2 code: P1646 Driver 1 Line 6
General Motors GM specific DTC OBD2 code: P1651 Fan 1 Relay Control Circuit
General Motors GM specific DTC OBD2 code: P1652 Powertrain Induced Chassis Pitch Output Circuit
General Motors GM specific DTC OBD2 code: P1653 Oil Level Lamp Control Circuit
General Motors GM specific DTC OBD2 code: P1654 Service Throttle Soon Lamp Control Circuit
General Motors GM specific DTC OBD2 code: P1655 EVAP Purge Solenoid Control Circuit
General Motors GM specific DTC OBD2 code: P1656 Driver 2 Line 6
General Motors GM specific DTC OBD2 code: P1657 1-4 Upshift Solenoid Control Circuit