W/Harness Inspection

Air Conditioner
B1246 Air Mix Potentiometer Short (High)-Driver - 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?






Signal Circuit Inspection

Check for short in harness
1. Ignition "OFF".
2. Disconnect DR Air Mix actuator.
3. Measure resistance between terminal "5" and "6" of DR Air Mix actuator.

Specification :Approx. Infinity Ohms




4. Is the measured resistance within specifications?






Ground Circuit inspection

Check for open in ground harness
1. Ignition "OFF".
2. Disconnect DR Air Mix actuator.
3. Measure resistance between terminal "7" of DR Air Mix actuator and chassis ground.

Specification :Approx. 0 Ohms




4. Is the measured resistance within specifications?