GS300 & GS400
- Disconnect power mirror motor harness connector. Connect three 1.5-volt dry cell batteries together in series. See Fig 1. Connect dry cell positive lead to terminal No. 8 and negative lead to terminal No. 11. Connect positive lead of voltmeter to terminal No. 9 and negative lead to terminal No. 11.
- While watching voltmeter, apply battery voltage to terminals No. 2 and 6, reversing polarity as necessary to move mirror in both directions. As mirror moves, voltage should gradually and smoothly change from 0.0-1.8 volts to 2.8-5.0 volts. If voltage is not as specified, replace power mirror motor assembly. If voltage is as specified, go to next step.
- Disconnect voltmeter and battery voltage from motor connector terminals (leave dry cell assembly connected). Connect positive lead of voltmeter to terminal No. 10 and negative lead to terminal No. 11.
- Apply battery voltage between terminals No. 1 and 2, reversing polarity as necessary to move mirror in both directions. As mirror moves, voltage should gradually and smoothly change from 0-1.8 volts to 2.8-5.0 volts. If voltage is not as specified, replace power mirror motor assembly.
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