Intermittent Malfunctions

An intermittent problem may or may not set a diagnostic trouble code. If it is an intermittent problem, a diagnostic trouble code chart is not used. Consult the Diagnostic Aids to the intermittent diagnostic trouble code. Also, refer to symptom. A physical/visual inspection of the applicable sub-system most often will resolve the problem. Use of the customer snap-shot and Scan tool snap-shot may isolate the malfunction. Refer to Symptom Diagnosis for customer snap shot and Service Stall System (SSS) user guide for Scan tool snap-shot operation. Symptom Related Diagnostic Procedures