Circuit/System Testing
- Vehicle OFF and all vehicle systems OFF, disconnect the X3 harness connector at the appropriate A9 Outside Rearview Mirror. It may take up to 2 mins for all vehicle systems to power down.
- Test for less than 10 Ω between the ground circuit terminal 2 and ground.
- Vehicle OFF.
- Test for less than 2 Ω in the ground circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the ground circuit.
- If less than 2 Ω, repair the open/high resistance in the ground connection.
- Vehicle in Service Mode.
- Test for less than 1 V between the control circuit terminal 1 and ground.
- Vehicle OFF, disconnect the harness connector at the B218R Side Object Sensor Module - Right..
- Test for less than 1 V between the control circuit and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 2 Ω, replace the B218R Side Object Sensor Module - Right.
- Command the Object Detection Alert Indicators On with a scan tool.
- Test for greater than 3 V between the control circuit terminal 1 and ground.
- Vehicle OFF, disconnect the harness connector at the B218R Side Object Sensor Module - Right.
- Test for infinite resistance between the control circuit and ground.
- If less than infinite resistance, repair the short to ground in the circuit.
- Vehicle OFF.
- Test for less than 2 Ω in the control circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the B218R Side Object Sensor Module - Right.
- Replace the appropriate E17 Outside Rearview Mirror Glass.