How to Troubleshoot PCM Circuits
How to Troubleshoot Circuits at the PCMSpecial Tools Required
- Backprobe set 07SAZ-001000A (two required)
1. Pull back the carpet, and remove the passenger's center lower cover.
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.