Test B: A Single Power Window is Inoperative - LH Front

PINPOINT TEST B: A SINGLE POWER WINDOW IS INOPERATIVE - LH FRONT

B1:

B2-B5:

B6-B8:

B8-B9:

Normal Operation
The BEC fuse 6 (30A) supplies 12 volts to the accessory delay relay 2 on circuit 964 (DB/LG). The accessory delay relay 2 then supplies 12 volts to the LH front window control switch on circuit 400 (LB/BK). When the LH front window control switch is pressed in the up position, the LH front window control switch directs 12 volts to the LH front window motor on circuit 333 (YE/RD) and ground on circuit 334 (RD/YE). When the LH front window control switch is pressed in the down position, the LH front window control switch directs 12 volts to the LH front window motor on circuit 334 (RD/YE) and ground on circuit 333 (YE/RD). The LH front window control switch is grounded through circuit 1205 (BK). The accessory delay relays are controlled by the smart junction box (SJB).

Possible Causes
- Circuit 964 (DB/LG) open
- Circuit 400 (LB/BK) open
- Circuit 333 (YE/RD) open
- Circuit 334 (RD/YE) open
- Circuit 1205 (BK) open
- Accessory delay relay 2
- LH window control switch
- Window motor
- SJB
- Fuse