Test K: One Or More Stoplamps Are Inoperative

PINPOINT TEST K: ONE OR MORE STOPLAMPS ARE INOPERATIVE

K1-K2:

K2-K5:

K5-K7:

K7-K8:

Normal Operation
When the brake pedal is applied, the stoplamp switch routes voltage to circuit 511 (LG). Circuit 511 (LG) provides voltage to the high mounted stoplamp and the smart junction box (SJB). The SJB then provides voltage to the LH and RH rear lamps through circuits 22 (LB/BK) and 810 (RD/LG), respectively. All the stoplamp are provided ground through circuit 57 (BK).

Possible Causes
- Circuit 22 (LB/BK) open or short to ground
- Circuit 57 (BK) open
- Circuit 511 (LG) open
- Circuit 810 (RD/LG) open or short to ground
- High-mounted stoplamp
- SJB