Question about 2005 Chevrolet Chevrolet Avalanche 1500 LS
Stop lights are not working
The STOP LP 25 A fuse in the underhood fuse block supplies battery positive voltage to the normally open stop lamp switch. When the driver presses the brake pedal, the switch contacts close and battery positive voltage is supplied to both the STOP 15 A fuse and the CHMSL 10 A fuse in the I/P fuse block, and to the turn signal/hazard module. The turn signal/hazard module then supplies voltage to both of the trailer rear turn/stop lamp supply voltage circuits. The voltage from the CHMSL 10 A fuse is to the center high mounted stop lamp (CHMSL) and the trailer jumper harness. The voltage from the STOP 15 A fuse is to the stop lamps, throttle actuator control (TAC) module, and the cruise control.
Do you know what a stop lamp switch is ? If so I would check it with a DVOM digital volt ohm meter , after you check fuse .
Posted on Nov 05, 2015
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Posted on Jan 02, 2017
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