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Test G: One Or More Stoplamps Are Inoperative

PINPOINT TEST G: ONE OR MORE STOPLAMPS ARE INOPERATIVE


G1-G2:






G2-G4:






G5-G7:






G7-G10:






Normal Operation - Except STX
The smart junction box (SJB) provides voltage to the stoplamp switch through circuit SBP19 (BU/RD). When the brake pedal is applied, voltage is routed to the high mounted stoplamp and the multifunction switch through circuit CCB08 (VT/WH). The multifunction switch then routes the voltage to the LH and RH rear lamps through circuits CLS35 (VT) and CLS36 (YE), respectively. Ground is provided through circuit GD161 (BK/YE) for the high mounted stoplamp and through circuit GD121 (BK/YE) for the rear lamps.

Normal Operation - STX
The SJB provides voltage to the stoplamp switch through circuit SBP19 (BU/RD). When the brake pedal is applied, the voltage is routed to the high mounted stoplamp and the rear lamps through circuit CCB08 (VT/WH). Ground is provided through circuit GD161 (BK/YE) for the high mounted stoplamp and through circuit GD121 (BK/YE) for the rear lamps.

Possible Causes
- Fuse
- Circuit CCB08 (VT/WH) open
- Circuit CLS35 (VT) open
- Circuit CLS36 (YE) open
- Circuit GD121 (BK/YE) open
- Circuit GD161 (BK/YE) open
- Circuit SBP19 (BU/RD) open
- Stoplamp switch
- High mounted stoplamp
- Multifunction switch
- SJB