W/Harness Inspection

Control Circuit Inspection

1. With ignition OFF, disconnect alternator connector
2. Ignition "ON" & Engine "OFF"
3. Measure voltage between FR terminal of the alternator harness connector and chassis ground.

Specification : Approx. 9 - 10V






NOTE:
Normal waveform with ignition "ON"





4. Is voltage within the specification?






Terminal and connection inspection

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