Diagnostic Strategy: Diagnostics

• Carry out On-Board Diagnostic (OBD) procedures Key ON Engine OFF (KOEO) and Key ON Engine Running (KOER).
• Record all DTCs.
• Repair all non-transaxle codes first.
• Repair all transaxle codes second.
• Erase all continuous codes and attempt to repeat them.
• Repair all continuous codes.
• If only pass codes are obtained, refer to Diagnosis By Symptom  for further information and diagnosis.

Follow the diagnostic sequence to diagnose and repair the concern the first time.