Question about 2002 GMC Safari

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My brake lights, turn signals and hazard lights aren't working.

My brake lights, turn signals and hazard lights stopped working. I assume it would be a fuse but the fuse box under the hood doesn't have fuses for those areas. Would there be a fuse box somewhere else?

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There should also be another fuse panel on the interior located on the driver or passenger side foot panels or there about.

Posted on Sep 20, 2012

Testimonial: "Thank you. I will check there."

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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carlsbiz

Carl

  • 1124 Answers

SOURCE: No tail lights, brake, hazard and signals work.

You did not mention if you found the fuse for "tail lights"..
Allot of times there is two fuse blocks.. One under the hood and maybe also under the dash..
Also - check the maual for where the relays are..

A good resourse is autozone.com
Go there and resgister,, put car info in and there is a worth of info like - locating parts on car,, how to and diagrams..

Good luck ;o)

Good luck...

Posted on Sep 16, 2009

Anonymous

  • 5 Answers

SOURCE: o6 GMC SIERRA FUSE BOX

Check trailer wiring, That's a good place to start.

Posted on Jul 27, 2009

cadman000

Eric Heifetz

  • 607 Answers

SOURCE: bottom brake lights and hazard lights do not come on. All other lights work including top brake lights. Fuses and bulbs checked.

Check for power out of brake light switch by brake pedal. Of its faulty , the 3rd brake light will still work. Hope this helps

Posted on May 23, 2009

SOURCE: TURN SIGNAL, BRAKE & HAZARD LIGHTS

No Turn Signal Operation (blinker)The turn signal lights in your car are a basic electrical system that controls the front and rear blinker lights to alert the intended direction of the vehicle. We have listed some of the most common problems and repair troubleshooting tips below:
Troubleshooting Procedure
To start troubleshooting this problem:

  • Turn the key to the on position (do not start engine)
  • Inspect the system fuse located in the fuse panel and replace if needed. If you cannot find the location of the blinker fuse consult your owner's manual or an online repair manual
  • When a blinker flasher fails it can cause blinker lights to say on, not blink, or not go on at all. To test the blinker system flasher, remove the flasher unit and insert a jumper wire between the two terminals. If blinker stays on in both directions without blinking, replace the flasher. If you cannot find the location of the blinker flasher consult your owners manual or an online repair manual.
  • 1b7f814.jpg

Posted on Jul 09, 2009

SOURCE: 2005 sierra horns stopped working.

The click you hear is the horn relay -- this likely has either dirty / corroded connections or burned contacts inside the relay. If cleaning all relevant connections doesn't solve the problem, replace the relay. You can find the realy by having someone push the horn button while you track down the click.

Charlie

Posted on Feb 14, 2011

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3 Answers

Brake lights went out so I changed a blown fuse,now the brake lights wont shut off,so I replaced the brake switch at the pedal and still have the same issue,lights wont go off.


Which fuse did you replace ? The one in the under hood fuse box or one of the two in the I/P fuse box . Do the CHMSL - center high mount stop lamps work correctly ? Here is a description how they work .
Stop Lamps
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.
Does yours have trailer light hook up ? If so check trailer wiring connector for corrosion . Also check the turn signal / hazard module .
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Tail lights won't turn on


The tail and marker lights are usually on the same line. The brake and turn signal lights are usually work on the same lamp filaments. If you have the owner manual it should tell you the location of the fuse boxes. One in the engine compartment and one inside the cab. The fuses ratings for these are usually 15 amps.

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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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YOU MIGHT HAVE A BURNT OUT RELAY IN FUSE COMPART UNDER YOU CARS HOOD CHECK THAT OUT THRU YOUR CARS MANUAL,IT WILL SHOW YOU WHICH RELAY IT IS?

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98 chevy lumina Rear window break light works, but rear break lights don't, also right turn don't work?


I can almost 100% guaranty the turn signal switch is the problem. Power for the brake lights starts at the brake switch. power then splits from there and the third brake light gets power directly from the brake switch. Since the turn signal and the brake lights are on the same bulb power for the brake lights is routed through the turn signal switch. the switch depending on what position it is in will allow brake power or turn signal power to there respective left or right brake/turn bulbs.

If you hold your foot on the brake pedal and wiggle the turn signal and or play with the hazard switch the brake lights will almost always intermittently start to work. this will confirm a bad turn signal switch which is pretty common on GM vehicle with this style setup.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

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I assume the fuse has power if the hazards work.
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My dashboard and rear lights don't work


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If by "rear lights" you mean everything in the rear lamp assemblies, power for the tail lights (running lights) starts at the 15A PARKLAMP fuse in the underhood junction block, passes through the automatic lamp control (ALC) relay and the right instrument panel junction block to the tail filament of the dual stop/tail lamp and the separate tail lamp on each side. The 12 V power for the stop lamps is protected by the 20A STOPLAMPS fuse in the left I/P junction block, passes through the stoplamp switch when brakes are applied, stop filament of the dual stop/tail lamps. That leaves the turn signals and the hazard lamps. Power for the turn signals originates at the 10A TURNLAMPS fuse in the left I/P junction block and is applied to the hazard switch. Switch output goes to the turn/headlamp/wiper switch for selection of left or right turn signals. That switch output goes to the turn lamp. Power for the hazard function begins at the 10A HAZRD LPS fuse in the left I/P junction box and goes to the hazard switch. Switch output is sent to the left I/P junction box to make the turn signals flash. That's it. Post a comment if you need more information.

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'

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