Did you fix your problem? i am having the same exact problem. i replaced the brake pedal switch, all the bulbs, fuses ok, even changed the taillight assemblies.
was wondering if you had any luck with the relays, as the person suggested? you can answer me here or [email protected]
thanks in advance!
Ricky
This all started with my license plate lights going out. Then my brake lights went out. Then my headlights went out.
Just replaced the License plate lights. I had replaced the Brake light bulbs, even the Brake light assembly. I replaced the Headlight switch, now the headlights work again. Just installed a new battery too.
My center high mount stop light (top of cab), had all the bulbs burnt out. I bought all new bulbs, installed but still no brake lights. Even the cargo lights on the same assembly don't work.
There IS power going to the plug there, but nothing from the brake switch.
I now have a schematic that shows there is a Relay that powers the High Mount Brake Light. I've seen on another forum that this Relay is either located in the Engine Compartment on the firewall, or in the glovebox. I only have a Fuel Pump Relay in the Engine Compartment, so I took apart the glovebox and there were 4 Relays there. As I jumped from 30 to 87 on each Relay, it turned on the Load Component. All 4 were for the AC system. No other Relays in that area.
Someone stated the Relay could be located on the left side of steering wheel on the side of the dash but no such luck.
Below the fuse panel I found the Horn Relay and the Starter Relay.
I read on another forum the problem was the ground for the High Mount Stop light Relay. It also said that the ground comes from the block and I checked the ground, on the back of the engine block and it's good.
Any suggestions would be greatly appreciated!I'm still working on this problem.
The turn signals do work.
Running lights work.
Reverse Lights work.
License plate lights work.
This all started with my license plate lights going out. Then my brake lights went out. Then my headlights went out.
Just replaced the License plate lights. I had replaced the Brake light bulbs, even the Brake light assembly. I replaced the Headlight switch, now the headlights work again. Just installed a new battery too.
My center high mount stop light (top of cab), had all the bulbs burnt out. I bought all new bulbs, installed but still no brake lights. Even the cargo lights on the same assembly don't work.
There IS power going to the plug there, but nothing from the brake switch.
I now have a schematic that shows there is a Relay that powers the High Mount Brake Light. I've seen on another forum that this Relay is either located in the Engine Compartment on the firewall, or in the glovebox. I only have a Fuel Pump Relay in the Engine Compartment, so I took apart the glovebox and there were 4 Relays there. As I jumped from 30 to 87 on each Relay, it turned on the Load Component. All 4 were for the AC system. No other Relays in that area.
Someone stated the Relay could be located on the left side of steering wheel on the side of the dash but no such luck.
Below the fuse panel I found the Horn Relay and the Starter Relay.
I read on another forum the problem was the ground for the High Mount Stop light Relay. It also said that the ground comes from the block and I checked the ground, on the back of the engine block and it's good.
Thank you for your reply. I have since fixed the problem. I took the dash apart and took the Headlight switch out. It was partially melted. I replaced it. That WAS the problem, only thing is that one of the first things I replaced was the brake switch. The NEW brake switch came broken, so switching the Headlight switch did not resolve my problem right away. I decided to test the power coming out of the brake switch and found it wasn't sending power when the pedal was pressed. Luckily I kept my old switch in the truck, and just swapped it out. Problem fixed.
This problem was almost a year long in length to fix! I hope this information helps the next person who may encounter this problem! Bless, RickyThank you for your reply. I have since fixed the problem. I took the dash apart and took the Headlight switch out. It was partially melted. I replaced it. That WAS the problem, only thing is that one of the first things I replaced was the brake switch. The NEW brake switch came broken, so switching the Headlight switch did not resolve my problem right away. I decided to test the power coming out of the brake switch and found it wasn't sending power when the pedal was pressed. Luckily I kept my old switch in the truck, and just swapped it out. Problem fixed.
This problem was almost a year long in length to fix! I hope this information helps the next person who may encounter this problem! Bless, Ricky
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disconnect the wires from the brake pedal switch, put an ohm meter across the connectors and move the plunger in and out. if there is a short one way and an open the other way, the switch is good. if there is no change in resistance, based on the plunger position, then the switch is bad.
There is a switch that is located above the brake pedal. It is called a brake senden switch. Make sure that it hasn't just lost contact with the brake pedal, that can happen, if it is bad, then it is a cheap fix
check brake light fuse. if ok. check to make sure you have dcv at brake pedal brake light switch mounted on brake pedal. if there is voltage present depress brake pedal and dcv shold be present on other terminal of brake pedal switch. if not replace brake pedal switch
If your fuses and bulbs are all good, then look above your brake pedal
and you will see your brake switch up along your brake pedal arm. It
will either be
between the brake arm and the firewall so when you brake it pushes the
switch in. Or it will be between the dash and the brake arm so when you
brake it pulls the switch out. Most likely this switch needs to be
replaced
Is the fuse for the brake lights OK? Check for power to the brake light switch at the brake pedal and for power coming from it with brake pedal depressed.
Troubleshooting Procedures - Read Completely Before Beginning (American Car) All Brake Lights Not Working
Check System Fuse: A fuse is used to protect the brake light circuit from amperage overload. If the fuse has failed it will not allow the electrical current to continue to the brake lights. To check the fuse, first locate the brake light system fuse in the fuse panel which is either under the dash or under the hood in the power distribution center. Connect the test light to a ground like an engine or dash bracket and turn the ignition key to the "on" position. Using the test light probe both sides of the fuse. If the test light illuminates on both sides the fuse is ok continue onto the next step. If one side of the fuse illuminates the fuse has failed and needs to be replaced. If the fuse fails as soon as it is replaced or when you apply the brake pedal the brake light electrical circuit is shorted to ground. Rarely a system short can occur, a car repair manual is needed to find the wiring schematic for the brake light circuit. Once the brake light wiring has been located inspect and repair as needed.
Check Brake Light Bulbs: All cars have three brake light bulbs that create the brake light illumination affect. If all of these brake light bulbs fail no brake light operation will occur. I know what you're thinking, you might say all three brake lights at once? But in reality one brake light went out at a time and you did not notice. People only tend to notice something when they almost run into the back of your car to help persuade them to inform you the brake lights aren't working. Remove any of the brake light bulbs to confirm the bulb is ok or burned. After the bulb has been removed inspect the filament and replace if failed. If the brake light bulbs are ok continue to the next step.
Checking the Brake Light Switch: A control switch is used to connect the brake light electrical circuit. This switch is located near the brake pedal lever. Basic switches have just two wires, power in and power out to the turn signal switch. Use a test light that is grounded and with the key in the "on" position test for power at one side (wire) of the switch, then press the brake pedal while testing the opposite side (wire). It should illuminate the test light, if electrical power is connected through the switch go to the next step. If no power is detected through the switch the brake light switch has failed and replacement is required. If your car is equipped with more than two wires integrated into the brake light switch a car repair manual is needed to locate the proper brake light circuit wiring.
I have a 2001 Ford F150, my brake lights dont work. Ive replaced the bulbs, checked the fuses,and the brake switch on side of the brake pedal was replaced. I still dont have any brake lights. My third brake light works fine, along with my running lights,flashers, blinkers.
The first thing that I would check is the fuse. If the fuse it ok then check the bulbs. Sometimes when one bulb goes out then the whole circuit just kind of shuts down. If this does not fix your problem then you are looking at a bad brake light switch. This is the switch that is located at the top of the pedal and it completes the circuit for the brake lights to turn on.
I'm still working on this problem.
The turn signals do work.
Running lights work.
Reverse Lights work.
License plate lights work.
This all started with my license plate lights going out. Then my brake lights went out. Then my headlights went out.
Just replaced the License plate lights. I had replaced the Brake light bulbs, even the Brake light assembly. I replaced the Headlight switch, now the headlights work again. Just installed a new battery too.
My center high mount stop light (top of cab), had all the bulbs burnt out. I bought all new bulbs, installed but still no brake lights. Even the cargo lights on the same assembly don't work.
There IS power going to the plug there, but nothing from the brake switch.
I now have a schematic that shows there is a Relay that powers the High Mount Brake Light. I've seen on another forum that this Relay is either located in the Engine Compartment on the firewall, or in the glovebox. I only have a Fuel Pump Relay in the Engine Compartment, so I took apart the glovebox and there were 4 Relays there. As I jumped from 30 to 87 on each Relay, it turned on the Load Component. All 4 were for the AC system. No other Relays in that area.
Someone stated the Relay could be located on the left side of steering wheel on the side of the dash but no such luck.
Below the fuse panel I found the Horn Relay and the Starter Relay.
I read on another forum the problem was the ground for the High Mount Stop light Relay. It also said that the ground comes from the block and I checked the ground, on the back of the engine block and it's good.
Any suggestions would be greatly appreciated!
Thank you for your reply.
I have since fixed the problem.
I took the dash apart and took the Headlight switch out. It was partially melted. I replaced it.
That WAS the problem, only thing is that one of the first things I replaced was the brake switch. The NEW brake switch came broken, so switching the Headlight switch did not resolve my problem right away. I decided to test the power coming out of the brake switch and found it wasn't sending power when the pedal was pressed.
Luckily I kept my old switch in the truck, and just swapped it out. Problem fixed.
This problem was almost a year long in length to fix! I hope this information helps the next person who may encounter this problem!
Bless,
Ricky
does your turn signals work? could be your turn signal switch
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