Inspection Procedure
HARNESS INSPECTIONECM Connector Pin Numbers (from Wire Side):
Pins number 101 and 106 must have a complete path to ground. If there is incorrect or incomplete conection of the engine control module's ground wire, the engine control module will not function correctly.
ECM Ground Circuit Wiring Testing:
Test the ground wiring integrity by disconnecting the ECM harness connector from the ECM and probing pins 101 and 106 for continuity to ground.