Diagnosis

Using the Mopar Diagnostic System (MDS) or the Diagnostic Scan Tool (DRB III) with the appropriate Diagnostic Procedures Manual, verify all engine systems are functioning as designed. If Diagnostic Trouble Codes (DTC's) are present, record them on the repair order and repair as necessary before proceeding further with this bulletin. If DTC $3E is present, follow the diagnostic procedure in the applicable diagnostic manual. If no apparent reason is found for the DTC, perform the Repair Procedure.