1. Check For Current DTC
Turn the ignition on.
With the DRB III(R), read the PCM DTCs.
Is this DTC preset?
- Yes >> For complete diagnosis of this DTC, see DTC P0131: O2 SENSOR 1/1 CIRCUIT LOW .
- No >> Go To 2
Turn the ignition on.
With the DRB III(R), read the PCM DTCs.
Is this DTC preset?