0
What would cause the brake lights to not light up we checked fuses light bulbs are good the brake switch was replaced and still nothing can you guys help?
Troubleshooting Brake Lights: Beyond the Basics
Great work on checking the obvious culprits! It's common for brake light issues to be related to fuses, bulbs, or the brake light switch. Since those have been ruled out, let's explore some less common but potential causes:
1. Ground Connection Issues:
- Corrosion: Check the ground wire connected to the brake light assembly for corrosion. Clean it or replace it if necessary.
- Loose Connection: Ensure the ground wire is securely connected to both the light assembly and the vehicle's body.
2. Faulty Wiring or Relay:
- Visual Inspection: Look for any damaged, frayed, or melted wiring in the brake light circuit.
- Relay Test: If your vehicle uses a relay for the brake lights, test it with a multimeter or replace it.
3. Brake Light Controller (If applicable):
- Check for Errors: If your vehicle has a brake light controller (especially in newer models), check for error codes using an OBD-II scanner.
- Reset or Replace: If necessary, reset the controller or consider replacing it.
4. Brake Pedal Position Sensor:
- Test: If your vehicle has a brake pedal position sensor, test it to ensure it's sending the correct signal.
5. Anti-Lock Brake System (ABS) Issues:
- Check ABS Module: In some cases, ABS issues can affect brake light functionality. Scan for ABS codes and address any problems.
If you're still unable to resolve the issue, it might be helpful to consult a mechanic (954-566-3625). They have specialized tools and knowledge to diagnose and repair electrical problems in your vehicle.
What else can I help you with?
What would cause the parking lights tail lights license plate lights and dash lights not to work on 1994 Chevy Z71 already have checked the fuses and replaced all bulbs?
The light switch.
2000 camaro dash lights not working. I replaced the headlight switch and still nothing. But if I jump the switch dash lights come on. So light bulbs do work.?
check the fuse for dash lights
My 1993 GMC Sierra running lights will work but the head lights won't - I have replaced the light switch in the dash and double checked and replaced the fuse any ideas what it might be?
The switch was stuck between high and low beams. Just flick the high/low beam switch once and the circut will be back to normal.
Why would the high beams work but not low beams and break and tail lights only work if instrument panel lights work 1986 300zx have checked bulbs and fuses replaced switch behind brake pedal?
headlight switch
What could be wrong with my 1998 jeep grand Cherokee Laredo if the reverse lights won't work and you've checked the bulbs and replaced them?
the reverse switch in the transmission
What is wrong if the stoplights don't work but the tail lights and rear signal lights work and the stop light light bulbs have been replaced and the fuses checked?
brake light switch bad check for continuity at the fuse then the switch, but yeah bad switch. Kongkit Raggan-Supatanampon
Have power in brakes whilst driving but no rear lights replaced bulbs switch and fuse what else can be checked?
It would help us to know what make, model and year you have.
Why wont the brake lights on your 1998 dodge stratus work Ive checked all the fuses and replaced the brake light switch They still won't work?
try the multifunction switch located on the steering column .
All lights work except the brake lights and 4 ways you replaced the brake switch and flasher still nothing Is there a relay or something I are missing?
The turn signal switch overrides the brake light circuit while the turn signals are on. If the switch is damaged or worn out the brake lights won't work.
Brake lights on 2001 dodge stratus do not work Checked fuses bulbs and replaced stop switch Any suggestions?
check the bulb again, are BOTH filaments good
I replaced the reverse lights. Then checked the fuse and it was all right. How come the reverse lights still don't come on Could it be the reverse switch on the transmission?
Very possible ... best to check the wiring with a voltmeter checking for +12vdc.
Why do I have no dash lights in my 1997 Malibu I have tried fuses dimmer switch and still nothing?
Have you checked the dimmer? I have a 2000 and there is a wheel to dim the dash lights to the left of the steering wheel, just above the cup holder.
