Test B: A Single Mirror Is Inoperative

PINPOINT TEST B: A SINGLE MIRROR IS INOPERATIVE

B1-B2:

B2-B3:

B4:

Normal Operation
The exterior mirror control switch uses circuit 542 (YE) as the common circuit for both exterior mirror up/down and right/left movement and is a common switched ground/voltage circuit based upon the mirror control switch position.

Possible Causes
- circuit 540 (RD) open
- circuit 541 (DB) open
- circuit 542 (YE) open
- circuit 544 (VT) open
- circuit 545 (WH) open
- exterior mirror control switch
- exterior mirror motor
- exterior mirror