Engine Controls - Basic Testing - 6.0L V12: Summary

If no faults were found while performing BASIC DIAGNOSTIC PROCEDURES, proceed to TESTS W/CODES - 6.0L V12 article. If no hard codes are found in self-diagnostics, proceed to the appropriate TESTS W/O CODES - 6.0L V12 article for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.), or intermittent diagnostic procedures.