Power Mirror Position Sensor Test
- Disconnect power mirror motor harness connector. Connect 3 1.5-volt dry cell batteries together in series. Connect positive lead from dry cell assembly to terminal No. 5 and negative lead to terminal No. 8. See Fig 1.
- Using a DVOM, connect the positive lead to terminal No. 6 and the negative lead to terminal No. 8. Apply 12 volts to terminal No. 1 and ground terminal No. 2. Observe voltmeter reading. Reverse 12-volt leads and again observe voltmeter reading.
- Voltage reading should be 0-0.9 volt 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. 7 and negative lead to terminal No. 8. Apply 12 volts to terminal No. 1 and ground terminal No. 3. Observe voltmeter reading. Reverse 12-volt leads and again observe voltmeter reading.
- On left power mirror, voltage reading should be 2.8-5.0 volts 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 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.
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