I have an 06 Equinox. The brake lights suddenly stopped working. The 15 amp fuse for the brake lights keeps blowing. Also the hazard lights seem to not be working properly. I see no naked wires, or shorts. What could this be?
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What is the amp rating on the fuse that keeps blowing? I looked at wiring for stop lamps, 15 amp fuse. Unplug connector for stop lamp switch, see if the fuse still blows? Also see if anything at connector looks burned or melted.
You could have problem with fuse box, itself. Look at back side of fuse box, see if anything looks burned or melted.
The STOP LP 25-amp 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-amp fuse and the center high mounted stop lamp (CHMSL) 10-amp fuse in the instrument panel (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-amp fuse is to the CHMSL and the trailer jumper harness. The voltage from the STOP 15-amp fuse is to the stop lamps, throttle actuator control (TAC) module, and the cruise control.
I think The turn signal/hazard module has something to do with the lights flashing .From looking at a wiring diagram B+ voltage from the STOP LP fuse 25amp in the under hood fuse box supply's the brake light switch , from there it feeds B+ to VEH STOP fuse 15amp and VEH CHMSL fuse 10amp an to stop lamp switch signal to the turn signal flasher module which is suppose to control the trailer stop lights . Do you have a connection for a trailer hook up ?
Remove both LT an RT TRLR fuse's both 10 amp from the I/P fuse block an see if the problem goes away .
Do you tow a trailer ? Check the trailer connector for corrosion !
3rd brake lights are usually just held with 1 or 2 screws.if the clip or plastic it screws into is stripped,you can usually find a used part pretty cheap.it may just need to be screwed down.the metal clips may be found at a hardware store.