Initial Inspection and Diagnostic Overview
PCM DATA LINE1. If all components are not accessible with a scan tool, check for an open in CKT 800 between Data Link Connector (DLC) terminal "M" and S237.
2. If a single component is not accessible with a scan tool, check for an open in CKT 800 between S237 and the component. If the wire is OK, refer to Powertrain Control Module diagnosis, Antilock Brake System for Antilock Brake System (ABS) diagnosis and Air Bags (Supplemental Restraint System) for Supplemental Air Restraint diagnosis.
ENTERTAINMENT AND COMFORT (E & C) DATA LINE
1. If the Radio is not accessible with a scan tool, check for an open in CKT 835 between DLC terminal "J" and the Radio. If the wire is OK, refer to Radio for Radio diagnosis. Testing and Inspection