Mode Control Motor Testing
CAUTION:
During this procedure, if polarity of test battery is reversed, mode control motor will be damaged. DO NOT run motor for more than a few seconds.
- Disconnect mode control motor 7-pin connector. Connect battery positive lead to terminal No. 1. See Figure . Ground terminal No. 7. Connect one end of a jumper wire to terminal No. 7. Connect other end of same jumper wire to terminals No. 2, 3, 4, 5 and 6 in sequence, then start back again at terminal No. 2. Each time a connection is made, the motor should run smoothly and then stop.
- Motor may not operate the first time jumper wire is connected to terminal No. 2, but it must operate when jumper wire is connected to terminal No. 2 the second time. If motor does not operate when jumper wire is connected to each terminal, check for binding door or door linkage. If door and linkage are okay, replace motor.