W/Harness Inspection

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P1690 Immobilizer-Smartra No Response - Inspection/Repair:_:W/Harness Inspection

Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness and terminal connections.
Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found ?






Signal Circuit Inspection

1. IG KEY OFF.
2. Disconnect Engine PCM connector.
3. IG KEY "ON"
4. Measure voltage between signal terminal of PCM harness connector and chassis ground.

Specification :About 12V








5. Is the measured voltage within specification ?