W/Harness Inspection

Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness and terminal condition. 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. Engine "OFF"
2. Disconnect CCV connector
3. Ignition" ON" & Engine "OFF"
4. Measure voltage between terminal "1" of CCV harness connector and chassis ground.
A. Specification : B+




5. Is the measured voltage within specification?
YES
- Go to "Control Circuit Inspection" procedure.
NO
- Check open or short to ground in harness between control relay and CCV.
- Repair or replace as necessary and then, go to" Verification of Vehicle Repair" procedure.

Control Circuit Inspection

1. Check for short to ground in harness.
(1) Ignition "OFF"
(2) Disconnect CCV connector
(3) Measure resistance between terminal "2" of CCV harness connector and chassis ground.
A. Specification : Infinite Ohms




(4) Is the measured resistance within specifications?
YES
- Go to" Check for open in harness" as indicated below.
NO
- Check short to ground in signal harness
- Repair or replace as necessary and then, go to" Verification of Vehicle Repair" procedure.
2. Check for open in harness
(1) Ignition "OFF"
(2) Disconnect CCV and PCM connector
(3) Measure resistance between terminal "2" of CCV harness connector and terminal "37" of PCM harness connector.
A. Specification : Approx. below 1 Ohm




(4) Is the measured resistance within specification?
YES
- Go to" Component Inspection" procedure.
NO
- Check open in harness between CCV connector and PCM connector.
- Repair or replace as necessary and then, go to" Verification of Vehicle Repair" procedure.