Electrical Circuit Testing Precautions
Use Of Circuit Testing ToolsDo not use a test light to diagnose the powertrain electrical systems unless you are specifically instructed by diagnostic procedures. Use the Connector Test Adaptor Kit, J 35616-A whenever diagnostic procedures call for probing any of the connectors.
Probing Electrical Connectors
Use the Connector Test Adapter Kit J 35616-A for any test that requires probing the ECM harness connector or a component harness connector. Using this kit will prevent damage to the harness connector terminals.