Test F: The Stoplamps Are Inoperative

PINPOINT TEST F: THE STOPLAMPS ARE INOPERATIVE

F1-F3:

F4-F6:

Normal Operation
The stoplamp switch is supplied voltage from the smart junction box (SJB) through circuit 10 (LG/RD). When the brake pedal is applied, the stoplamp switch routes voltage to circuit 810 (RD/LG) back to the SJB. The SJB monitors voltage input from the stoplamp switch. When the SJB senses brake pedal application, the SJB then sends voltage to the stoplamps.

Possible Causes
- Fuse
- Circuit 10 (LG/RD) open
- Circuit 810 (RD/LG) open
- Stoplamp switch
- SJB