Test B: One Mirror Does Not Operate
- Remove power mirror trim panel of inoperative mirror. Disconnect mirror motor connector. Connect a test light between terminals "B" and "C" of mirror motor connector. See Fig 1
. Select inoperative mirror with mirror select switch. Move mirror adjustment switch to up position, then to down position. If test light is off, go to next step. If test light is on, check mirror motor connector connections. If connections are good, replace inoperative mirror motor. See POWER MIRROR MOTOR
under REMOVAL & INSTALLATION.
- Reconnect mirror motor connector. With a grounded test light, backprobe terminal "C" of mirror motor connector. Move mirror adjustment switch to up position, then to down position. If test light is on in both positions, repair open in Gray wire (left mirror) or Light Blue wire (right mirror) between terminal "B" of mirror motor connector and mirror switch. If test light is not on in both positions, check mirror motor connector connections. If connections are good, replace inoperative mirror motor. See POWER MIRROR MOTOR
under REMOVAL & INSTALLATION.
Courtesy of GENERAL MOTORS CORP.