Proper Tools and Testing Procedures

USE OF CIRCUIT TESTING TOOLS
Do not use a test lamp in order to diagnose the Powertrain electrical systems unless specifically instructed by the diagnostic procedures. Use the Connector Test Adapter Kit, J 35616 whenever diagnostic procedures call for probing any connectors.

PCM SERVICE PRECAUTIONS
The PCM is designed to withstand normal current draws associated with vehicle operations. Avoid overloading any circuit. When testing for opens or shorts, do not ground any of the PCM circuits unless instructed. When testing for opens or shorts, do not apply voltage to any of the PCM circuits unless instructed. Only test these circuits with a digital voltmeter J 39200, while the PCM connectors remain connected.