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 all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration and/or damage.
3. Has a problem been found ?
YES
1) Repair as necessary and then go to "Verification of Vehicle Repair" procedure.
NO
1) Go to "Charging System Inspection" procedure.

Power Supply Circuit Inspection

1. Ignition "OFF"
2. Disconnect EPS CM connector.
3. Engine "ON", headlight and heatwire "ON".
4. Measure voltage between terminal "4" of EPS CM harness connector and chassis ground maintaining ENG. RPM at 2,500 RPM (idle) over 2 minutes.
A. Specification : more than 10 [V]









5. Is the measured voltage within specifications ?
YES
1) Substitute with a known-good EPS CM and check for proper operation.
If the problem is corrected, replace EPS CM and then go to "Verification of Vehicle Repair" procedure.
NO
1) Check for open/short to ground in power harness.
Repair as necessary and then go to "Verification of Vehicle Repair" procedure.

Charging System Inspection

1. Engine "ON"
2. headlight and heatwire "ON".
3. Measure voltage between terminal (+) and (-) of battery maintaining ENG. RPM at 2,500 RPM (idle) over 2 minutes.
A. Specification : more than 10 [V]









4. Is the measured voltage within specifications ?
YES
1) Go to "Power Supply Circuit Inspection" procedure.
NO
1) Check for fault in charging system and check for tension of alternator drive belt, ENG.idle rpm or open/short in harness from battery to alternator.
Repair as necessary and then go to "Verification of Vehicle Repair" procedure.