W/Harness Inspection

Engine Control
P0563 System Voltage High - Inspection/Repair:_:W/Harness Inspection

Terminal & Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness and terminals. 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?






Main relay circuit inspection

1. IG KEY "OFF".
2. Disconnect Main relay and Key "ON".
3. Measure the voltage between Power from battery(30) terminal of main relay harness connector and chassis ground.
4. Measure the voltage between Power from battery(86) terminal of main relay harness connector and chassis ground.

Specification :B+




5. Is the measured voltage within specification ?