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?






Control Circuit Inspection

Check voltage
1. IG "OFF" & Disconnect HO2S (B1/S1) connector.
2. IG "ON".
3. Measure voltage between control terminal of HO2S (B1/S1) heater harness connector and chassis ground.

Specification : Approx. 0V





4. Is the measured voltage within specification?