Power Mirror Control Module: Testing and Inspection

MIRROR ECU INSPECTION

1. INSPECT MIRROR ECU CIRCUIT
Disconnect the connectors from the ECU and inspect the connector on the wire harness side as shown in the chart beloe.








If circuit is not as specified, inspect the wire harness and mirror switch or motor assembly.

2. INSPECT MIRROR ECU OPERATION
Connect the connectors and using a voltmeter with high impedance (10 kohms/V minimum), measure the voltage at each terminal and body ground.








If operation is not as specified, inspect the wire harness and mirror switch or motor assembly. Then if these are correct, replace the ECU.