Engine Controls - Self Diagnostics: Summary

If no hard trouble codes (or only pass codes) are present, driveability symptoms exist or intermittent Diagnostic Trouble Codes (DTCs) exist, see the following:

• For 1995 models, see TESTS W/O CODES article for diagnosis by symptom or intermittent diagnostic procedure.
• For 1996 models, see TESTS W/O CODES article for diagnosis by symptom or intermittent diagnostic procedure.
• For 1997 XJR models, see TESTS W/O CODES article for diagnosis by symptom or intermittent diagnostic procedure.
• For 1997 XJ6 models, see TESTS W/O CODES article for diagnosis by symptom or intermittent diagnostic procedure.