Operation CHARM: Car repair manuals for everyone.

Component Tests and General Diagnostics

How to Troubleshoot Circuits at the PCM

Special Tools Required
Backprobe set 07SAZ-001000A (two required)

1. Pull back the carpet, and remove the driver's and passenger's console side trims.
2. Inspect the circuit on the PCM, according to the DTC troubleshooting, with the special tools and a digital multimeter.





3. Connect the backprobe adapters (A) to the stacking patch cords (B), and connect the cords to a multimeter (C).
4. Using the wire insulation as a guide for the contoured tip of the backprobe adapter, gently slide the tip into the connector from the wire side until it touches the end of the wire terminal.
5. If you cannot get to the wire side of the connector or the wire side is sealed, disconnect the connector and use the tester probe to probe the connectors from the terminal side. Do not force the probe into the connector.