Question about Chevrolet Silverado

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Why does my stop/hazard fuse keep blowing in my 98 Chevy Silverado k1500 causing no brake light or hazards

Fuse keeps blowing for brake lights and hazards. Have tried high amp and still blows. Have tail lights and turn signals.

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Jim

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Short circuit most likely in rear light wiring

Posted on Oct 14, 2021

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Fuse keeps blowing

What happens when you turn on the hazard lights?
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The 20 amp stop/haz fuse keeps blowing. I put a new one in but after using the brakes 18 to 24 times the fuse is blown. I noticed that the fus/circuit breaker box under the hood does not have a brake lamp...

Not easy to diagnose. Most probable cause is an intermittent short in the power wiring between the hazard module under the dash and the brake and center stop lights, or a problem with either that module or brake light switch on the pedal. I would start by inspecting the socket wiring and interior of the sockets on the rear light modules.
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I have a 2006 Chevy Silverado 1500 Extended Cab 4x4. My question is that when the truck is parked & not running with no keys in the ignition , my brake lights will begin to flash on & off until it drains...

Stop lamp circuit discription

Stop Lamps
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 !
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How do I keep fuses for hazards and brake light from blowing

They use the same bulbs in the back.
Check the light sockets and wiring for shorts to ground.
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Brake light and hazards blow fuses. what 's happening?

You'll have to trace the wiring to check for a short to ground.
Could be in one of the light sockets.
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95 gmc jimmie, 4x4, everytime i use my brake pedal, a fuse blows, i have no brake lights, hazard or signal lights. how do i fix it my mom broke off the hazard button in the steerin column so i used a stick...

consider properly repairing the hazard light switch via junkyard parts for a cheap price. You invariably have a short that overloads the fuse when you activate the brake lights via pressing on the brakes.

good luck
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Hazard lights not working on 92 chevy scottsdale all bulbs are ok

if turn signals work, check flasher for hazard lights, you can swap with turn flasher to test
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Tail lights stopped working (keeps blowing fuse)

you could either have a front marker/signal lamp w/lamp grounded and causing this,remember...when tail lights are on so are your frt parking/marker lights on also..... other than that you could have a feed wire worn thru and grounding out to the frame
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Checked all fuses-good, swapped bulbs-good, hazard lights-good, head lights good, turn signals-good but no brake lights. 1995 chevy silverado

Does the turn signals or hazards work in the rear?? Yes... it may be the brake switch or the turn signal switch (power goes from battery, to the brake switch then to the turn signal switch, then to the lights. No? .. again.. possibly turn signal switch or the wiring between cab and bed.
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