1. Check To See If Cab DTCS Are Present
Turn ignition on.
With the DRB III(R), read CAB DTCs.
Are any performance or Bus related DTCs present?
- Yes >> Repair all CAB DTCs before proceeding.
- No >> Go To 2
Turn ignition on.
With the DRB III(R), read CAB DTCs.
Are any performance or Bus related DTCs present?