W/Harness Inspection

Electric Parking Brake
C1103 Ignition Signal Failure - Inspection/Repair:_:W/Harness Inspection

Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness(es) and terminal condition. 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

Check for open or short in harness
1. IG "OFF"
2. Disconnect EPB ECU connector.
3. IG "ON"
4. Measure voltage between ignitions signal terminal of EPB ECU harness connector and chassis ground.

Specification :Battery voltage




5. Is the measured value within specifications?