Test B: A Single Power Window Is Inoperative - Driver

PINPOINT TEST B: A SINGLE POWER WINDOW IS INOPERATIVE - DRIVER

B1-B3:

Normal Operation
When the driver window is operated in the down direction, voltage is supplied to the driver window motor from the driver window control switch on circuit 227 (YE) and ground is supplied on through circuit 226 (WH/BK). When the driver window is operated in the up direction, voltage is supplied on circuit 226 (WH/BK) and ground through circuit 227 (YE).

Possible Causes
- circuit 226 (WH/BK) open or short to ground
- circuit 227 (YE) open or short to ground
- driver window control switch
- driver window motor