2002 PCED OBD II DieselSection 5 Pinpoint Tests QA PDF

A document that provides detailed instructions for troubleshooting OBD II communication errors in diesel vehicles. The document includes a series of pinpoint tests designed to diagnose and resolve specific error codes related to the Powertrain Control Module (PCM), Data Link Connector (DLC), and various circuit continuities. It guides the user through resistance testing, checks for shorts in power and ground circuits, and provides corrective actions based on the test results.