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
- Repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
- Go to "Power Circuit Inspection" procedure

Power Supply Circuit Inspection

1. IG "OFF" & Disconnect OCV (B1) connector.
2. IG "ON" & ENG "OFF".
3. Measure voltage between terminal 1 of OCV (B1) harness connector and chassis ground.
A. Specification : B+




4. Is the measured voltage within specification?
YES
- Go to "Control Circuit Inspection" procedure.
NO
- Check fuse between Main Relay and OCV is open or not installed.
- Check open in power circuit between Main Relay and OCV power circuit.
- Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.

Control Circuit Inspection

1. Check short to ground in harness.
(1) IG "OFF" and disconnect OCV connector.
(2) IG "ON" & ENG "OFF".
(3) Measure resistance between terminal 2 of OCV harness connector and chassis ground.
A. Specification : Infinite




(4) Is the measured resistance within specification?
YES
- Go to "Check open in harness" as follows
NO
- Repair or replace as necessary and go to "Verification of Vehicle Repair" procedure.
2. Check open in harness
(1) IG "OFF" and disconnect OCV and PCM connector.
(2) Measure resistance between terminal 2 of OCV harness connector and terminal 62 of PCM harness connector.
A. Specification : Approx. below 1 Ohm




(3) Is the measured resistance within specification?
YES
- Go to "Component Inspection" procedure.
NO
- Repair or replace as necessary and go to "Verification of Vehicle Repair" procedure.