W/Harness Inspection

4WD Control
P1757 EMC PWM Out of Range - Inspection/Repair:_: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?






Control Circuit Inspection

Check open in control circuit
1. IG KEY OFF
2. Disconnect EMC and 4WD ECM connector.
3. Measure resistance between control terminal of one and the other of EMC harness connector

Specification :Below 1Ohms




4. Is the measured resistance within specification ?






Ground Circuit Inspection

Check open in ground circuit
1. IG KEY OFF
2. Disconnect EMC and 4WD ECM connector.
3. Measure resistance between ground terminal of one and the other of EMC harness connector.

Specification :Below 1Ohms




4. Is the measured value within specification ?