Information Bus: Testing and Inspection
DATA LINK CONNECTORIf there is a fault detected in the Data Link circuit it will normally be detected when trying to obtain trouble codes and the accessing of the Powertrain Control Module (PCM) diagnostics. If that is the case, refer to Procedures / Diagnostic Charts / Chart A-1 No "Service Engine Soon" Light or Chart A-2 Won't Flash DTC 12 - No Serial Data, MIL on Steady. Testing and Inspection