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 ?






Power Circuit Inspection

1. Check voltage
(1) IG "OFF".
(2) Disconnect the Radiator fan relay.
(3) IG "ON" and ENG "OFF"
(4) Measure the voltage between terminal 30, 85 of the Radiator fan relay harness connector and chassis ground.

Specification : B+





(5) Is the measured voltage within specification ?






Control Circuit Inspection

1. IG "OFF"
2. Disconnect the Radiator fan relay
3. IG "ON" & ENG "OFF"
4. Measure voltage between terminal 86 of the Radiator fan relay harness connector and chassis ground.

Specification : Approx. 2.5V





5. Is the measured voltage within specification