W/Harness Inspection

Body Control

Body Control Module - B1901 Auto Light Out Of Range W/Harness Inspection

Terminal and 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?






Signal Circuit Inspection

Check for open or short in harness
1. Ignition "ON" & engine "OFF" & Headlamp "AUTO".
2. Measure voltage value between terminal "7" of autolight sensor and chassis ground.

Specification : Approx. 4 V ~ 6 V





3. Is the measured voltage within specifications?