Operation CHARM: Car repair manuals for everyone.

Pinpoint Test 1

PINPOINT TEST 1: ONE OR MORE STOPLAMPS ARE INOPERATIVE

Step 1-Step 5:




Step 6-Step 9:




Multifunction Switch, Lamp Portion Component Test:




Normal Operation
The SJB provides voltage to the stoplamp switch through circuit (L/R). When the brake pedal is applied, the voltage is routed to the high mounted stoplamp and the rear lamps through circuit (V/W). Ground is provided through circuit (B/Y) for the high mounted stop lamp and through circuit (B/Y) for the rear lamps.

Possible Causes
- Fuse
- Circuit (V/W) open
- Circuit (B/Y) open
- Circuit (B/Y) open
- Circuit (L/R) open
- Stoplamp switch
- High mounted stoplamp
- Multifunction switch
- SJB