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 ?
YES
1) Repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
1) Go to "Power Circuit Inspection" as follow

Power Supply Circuit Inspection

Check voltage
1. IG "OFF" and disconnect OCV connector.
2. IG "ON" & ENG "OFF".
3. Measure voltage between power terminal of OCV harness connector and chassis ground.

NOTE: Be careful not to change the connectors for Bank1 and Bank2

A. Specification : B+




4. Is the measured voltage within specification ?
YES
1) Go to "Control Circuit Inspection" procedure
NO
1) Check that Fuse between Main Relay and OCV is open
2) Check open between main relay and OCV
3) Check short to ground between Main Relay and OCV
4) Repair or replace as necessary go to "Verification of Vehicle Repair" procedure

Control Circuit Inspection

Check voltage
1. IG "OFF" and disconnect OCV connector.
2. IG "ON" & ENG "OFF".
3. Measure voltage between control terminal of OCV harness connector and chassis ground.
A. Specification : Approx. below 1V




4. Is the measured voltage within specification ?
YES
1) Go to "System Inspection" procedure
NO
1) Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure