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 Vehicle Repair" procedure
NO
1) Go to "W/Harness Inspection" procedure.

Power Supply Circuit Inspection

Check for open or short in power harness
1. IG KEY OFF
2. Disconnect SMARTRA connector.
3. Connect PCM connector
4. IG KEY ON.
5. Measure voltage between harness side power terminal of SMARTRA and chassis ground.
A. Specification : 9 - 16V








6. Is the measured voltage within specifications ?
YES
1) Go to "Signal Circuit Inspection" procedure.
NO
1) Check for open or short in harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.

Signal Circuit Inspection

Check for open in harness
1. IG KEY OFF
2. Disconnect SMARTRA and PCM.
3. Measure voltage between harness side signal terminal of SMARTRA and harness side IMMO signal terminal of ECM.
A. Specification : 1 Ohm below








4. Is the measured voltage within specifications ?
YES
1) Go to "Check for open in harness" as below
NO
1) Check for open in harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
Check for short in harness
1. IG KEY OFF
2. Disconnect SMARTRA.
3. IG KEY ON.
4. Measure voltage between harness side signal terminal of SMARTRA and chassis ground.
A. Specification : 11.79V








5. Is the measured resistance within specifications ?
YES
1) Go to "Ground Circuit Inspection" procedure
NO
1) Check for short in harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.

Ground Circuit inspection

Check for short in harness
1. IG KEY OFF
2. Disconnect SMARTRA and PCM connector.
3. Measure resistance between ground terminal of SMARTRA and chassis ground.
A. Specification : 1 Ohm below








4. Is the measured resistance within specifications ?
YES
1) Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.
NO
1) Check for open in harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.