Question about 2008 Ford F-150

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Would fuse cause rear brake lamp and turn signial to stop working ? change bulb did not help

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  • Ford Master
  • 21,873 Answers

I doubt it. Usually you have one fuse for all 4 turn signals.
You might try the emergency flashers and see if they work that way.
The problem could be in the lamp socket or the turn signal switch.

Posted on Jan 21, 2013

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Posted on Jan 02, 2017

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MrScary66613
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SOURCE: Left rear brake light stopped working but bulb and fuses are OK.

These are Dual Function Bulbs. They control the Parking Lights and the Brake Lights. This Bulb is Burnt out on the Brake Coil inside the Bulb. I have actually seen Bulbs that were Bad But you could not Tell by jast looking at them. It should be fine with a New Bulb. Please Rate My Response! Thanks!

Posted on Feb 05, 2009

emissionwiz
  • 76848 Answers

SOURCE: 1998 ford escort wagon brake lights out. bulbs and fuses changed.

have you tested the brake light switch? it is located at the top of the arm the brake pedal is attached to, it is very common for the wires to that switch to break inside the plastic insulation, the switch testing goes like this, there should be 12 volts present at both sides of the switch with the brake pedal depressed and one side without the pedal depressed.

Posted on Jul 01, 2009

  • 14036 Answers

SOURCE: ford focus brake lights wont work! I have changed

replace turn signal switch.i seen some GM cars had problem with brake lights not working.the turn signal switch was the problem.

Posted on Jul 07, 2009

harley9701ha
  • 424 Answers

SOURCE: rear brake light and turn signals out

Check your hazard switch and see if it's engaged. cycle the switch a few times and see if that fixes it. Dirt gets in the switch and sometimes causes what your concern is.I hope this helps.

Posted on Jul 09, 2009

  • 2 Answers

SOURCE: Brake light, Turn signal not working rear right 06' Focus

I have a 2000 ford focus no brake lights. with the brake lights the transmission would not go into drive .replaced the brake light switch checked fuse replaced turn signal switch with no results then i moved onto the wiper switch and replaced it as much to my supp rise it fixed the problems

Posted on Aug 06, 2009

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08 Buick lucerne cxl. Third brake light works as well as front signal lights. No rear brake lights or turn signals. Tail lights and headlights and third brake lights works. Bulbs good. Help


Stop Lamps
The brake pedal position sensor is used to sense the action of the driver application of the brake pedal. The body control module (BCM) provides a 5-volt reference voltage and low reference to the brake pedal position sensor. The position sensor provides an analog voltage signal back to the BCM that will increase as the brake pedal is applied. When the brake is applied, the BCM will then apply battery voltage to the left and right stop/turn signal lamp supply voltage circuits and the center high mounted stop lamp (CHMSL) supply voltage circuit illuminating the stop lamps. At the same time the BCM applies battery voltage through the signal circuit to the transmission control module (TCM) and the engine control module (ECM) indicating that the brakes are applied.
Ground for the stop lamps is supplied as follows:
• G402 provides ground for the left rear stop/tail/turn signal lamps
• G403 provides ground for the right rear stop/tail/turn signal lamps
• G301 provides ground for the CHMSL
The stop lamps on this vehicle will not illuminate unless the ignition is in the accessory, run, or crank positions. When the ignition is in the OFF position the stop lamps will not illuminate when the brake pedal is applied.
Battery voltage from the LT TRN/SIG and RT TRN/SIG fuses located in the rear fuse block is also used by the body control module (BCM) for stop lamp operation.

Turn Signal Lamps
Battery voltage supplied to the body control module (BCM) from the fuses listed below is used for turn signal and hazard lamp operation.
• LT TRN/SIG fuse for the left turn signals
• CTSY/RF TRN fuse for the right front turn signal
• RR TRN/SIG fuse for the right rear turn signal
When the turn signal switch is place in either the LEFT or RIGHT position, ground from G300 is applied through the turn signal switch signal circuit to the BCM indicating the turn signal request. In response to this signal, the BCM applies a pulsating voltage to the front and rear turn signal lamps supply voltage circuits cycling the lamps ON and OFF. At the same time the BCM sends a GMLAN serial data message to the instrument panel cluster (IPC) to cycle the appropriate turn signal indicator ON and OFF.
Ground for the turn signal lamps is supplied as follows:
• G104 provides ground for the left and right front turn signal lamps
• G402 provides ground for the left rear stop/tail/turn signal lamps
• G403 provides ground for the right rear stop/tail/turn signal lamps

Do you have a factory scan tool (tech2) ? Your best bet , take it to the dealer .

Sep 08, 2017 | Buick Cars & Trucks

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Brake lights 2001 Oldsmobile aurora


switch may have failed under dash at brake pedal arm or got unplugged but BIG FEET

Sep 10, 2015 | 2001 Oldsmobile Aurora

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Brake light on 2000 ford windstar doesn't work


bad earth the wire that goes to the car body could be lose

Apr 16, 2013 | Ford Cars & Trucks

1 Answer

2009 Impala rear lights not working


Turn Signal Lamps
The LT T/SIG and RT T/SIG fuses located in the underhood fuse block supplies battery positive voltage to the body control module (BCM) for turn signal and hazard lamp operation. When the turn signal switch is place in either the LEFT or RIGHT position, ground from G202 is applied through the turn signal switch signal circuit to the BCM indicating the turn signal request. In response to this signal, the BCM applies a pulsating voltage to the front and rear turn signal lamps supply voltage circuits cycling the lamps ON and OFF. The BCM also sends a message via GMLAN to the instrument panel cluster (IPC) to cycle the turn signal indicator ON and OFF depending on the position of the turn signal switch.
Ground for the turn signal lamps is supplied as follows:
• G101 provides ground for the left front turn signal lamp
• G100 provides ground for the right front turn signal lamp
• G302 provides ground for the left and right rear turn signal lamps

The LT T/SIG and RT T/SIG fuses located in the underhood fuse block are also used by the body control module (BCM) for stop lamp operation.
The brake pedal position sensor is used to sense the action of the driver application of the brake pedal. The body control module (BCM) provides both, a 5-volt reference voltage and low reference to the brake pedal position sensor. The position sensor provides an analog voltage signal back to the BCM that will increase as the brake pedal is applied. When the brake pedal is applied, the BCM will then apply battery voltage to the left and right stop lamp supply voltage circuits and the center high mounted stop lamp (CHMSL) supply voltage circuit illuminating the stop lamps. At the same time the BCM signals the transmission control module (TCM) and the engine control module (ECM) that the brakes are applied. Ground for all stop lamps is provided at G302.
The stop lamps on this vehicle will not illuminate unless the ignition is in the accessory, run, or crank positions. When the ignition is in the OFF position the stop lamps will not illuminate when the brake pedal is applied.

Did you check the fuse's. ? Wouldn't think it's a ground because right an left tail lamp Assembly's use same ground ! Did you check for B+ voltage at the bulb. with a volt meter ? Power is supplied by the BCM . Could be the tail lamp assembly

Jul 19, 2017 | Cars & Trucks

2 Answers

I'M HAVING PROBLEMS WITH THE BREAK LIGHT NOT WORKING, HAVE CHECK THE BULBS, FUSES, RELAY SWITCH ALL SEEM TO BE OK, STILL WILL NOT WORK. THE TOP BREAK LIGHT IS OK. WHAT ELSE SHOULD I LOOK FOR? THIS...


If the top brake light is working, then the brake light switch on the brake pedal is ok and adjusted properly. GM had major problems with the circuit boards on these....check for power at the circuit boards with the brake pedal depressed.
Also,the brake/stop lamps are wired thru the Turn Signal switch which on this model is the multifunction switch...I have seen this fail many times, it's expensive and not a repair that can be made in a few minutes, takes several hours and a lot of paitence.
Did you check the fuses in the rear fuse box as well?...I suggest you call your dealer or GM direct and see if your vehicle falls under any of these recall notices---i bet it does. If the recall repairs have not been made, then they will do for you at no cost. You will need to have your VIN number ready when you call. Below is a brief description of a recall notice.

Recall Summary:ON CERTAIN SPORT UTILITY VEHICLES, VIBRATION AND HEAT MAY CAUSE THE TAIL LAMP/STOP LAMP BULB TO LOOSEN IN ITS SOCKET. IF THIS OCCURS, THE BULB MAY FLICKER AND EVENTUALLY BECOME INOPERATIVE.

Consequence:AN INOPERATIVE BRAKE LAMP WILL NOT CONVEY THE DRIVER'S INTENTION OF STOPPING TO DRIVERS IN FOLLOWING VEHICLES, AND AN INOPERATIVE REAR TURN SIGNAL LAMP WILL NOT CONVEY THE DRIVER¿S INTENTION TO TURN TO DRIVERS IN FOLLOWING VEHICLES. BOTH OF THESE FAILURES CAN INCREASE THE RISK OF A CRASH. RemedyDEALERS WILL INSPECT THE TAIL LAMP/STOP LAMP ASSEMBLIES, AND IF NECESSARY, REPLACE THEM. THE RECALL BEGAN ON NOVEMBER 22, 2004. OWNERS SHOULD CONTACT CHEVROLET AT 1-800-630-2438, OLDSMOBILE AT 1-800-630-6537, BUICK AT 1-866-608-8080, OR GMC AT 1-866-996-9463. NotesGENERAL MOTORS CORP. 04087

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Jul 12, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

2003 GMC ENVOY BRAKES LIGHTS WILL NOT COME ON DID SWITCH THE BULBS


{: ) Check out the ST/LP fuse(25amp) at the underhood fuseblock. Also the VEH STOP (15amp) and VEH CHMSL (10amp) fuses at the fuseblock rear. If the center high mounted stop lamp is also not working, and you can't get any 12volts on either stoplamp bulb sockets, then most likely causes are the fuse, stoplamp switch on the brake pedal, and a faulty wiring.
If the center stop lamp is working and both sides are not, then the trouble can be isolated on the wirings or terminals of the two bulbs on the sides.
Wish you luck.

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Turn signal relay keeps clicking (same sound as when turn signals are on) even when I am not signalling to turn. I checked, all bulbs/signals work properly. But the sound is annoying. I replaced the relay,...


it may not be that relay. if this happens when the vehicle is idling. look under the dash at the fuse panel. put your finger on each relay. you will feel it if it's the one that is clicking. replay the offending relay.

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Brake lights won't work. tail lights do. I


need to know if your third brake light up high is working or not.if it isn't,you need to check the brake light switch on the brake pedal with a test light,one side hot all the time,the other side should turn hot when brake pedal is pushed.

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2000 Ford Expedition-Left turn signal and brake light in rear does not work, and left front flasher works but flashes quickly. The front and rear right side of turn signal and brake works perfectly. I...


You may have some wiring 'grounding' problems in the areas of concern. Remove each connection, and clean any rust. Place a light film of grease and a fresh star washer next to ground point, then the wire connector and other washers. Tighten firmly. Check the lamp sockets for any corrosion and replace same if found. The front lamp flashes rapidly because the rear light not working causes the flasher unit to switch faster.

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are the rear lights combined? ie sidelamp and brake lamp in one bulb .if so, there is a possibility that the bulb is not sitting correctly in the holder , causing both the side & brake lamp fuses to blow . if they are seperate bulbs you probably have ashort in the sidelamp system somewhere but the brakes could be a switch problem [easy check, find switch ,disconnect wires short across using wire or paperclip switch on ignition and check lights ] if they work the switch is the problem , [check fuse first] if they don't

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