Power Mirror Position Sensor Test
- Disconnect power mirror motor harness connector. Connect three 1.5-volt dry cell batteries together in series. Connect positive lead from dry cell assembly to mirror motor connector terminal No. 5 and negative lead to terminal No. 9. See Fig 1.
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- Using a DVOM, connect positive lead to terminal No. 6 and negative lead to terminal No. 9. Apply 12 volts to terminal No. 2 and ground terminal No. 3. See Fig 1. Observe voltmeter reading. Reverse 12-volt leads and again observe voltmeter reading.
- Voltage reading should be 0-0.9 volt with mirror at uppermost mirror position and 2.8-5.0 volts at lowermost position. Voltage reading should change gradually and smoothly as mirror moves.
- Connect positive lead of DVOM to terminal No. 4 and negative lead to terminal No. 9. Apply 12 volts to terminal No. 1 and ground terminal No. 2. Observe voltmeter reading. Reverse 12-volt leads and again observe voltmeter reading.
- On left mirror, voltage reading should be 2.8-5.0 volts with mirror at leftmost position and should drop to 0-0.9 volt at rightmost position. On right mirror, voltage reading should be 0-0.9 volt with mirror at leftmost position and should climb to 2.8-5.0 volts at rightmost position. If either mirror does not operate as specified, replace power mirror assembly.