The brake lights don't work. Fuse good, switch good, 12V on switch. Bulbs good. Is there a relay ? Another fuse ?

115

Asked by wb8wbn May 23, 2008 at 09:23 AM about the Mercury Sable

Question type: Maintenance & Repair

I pulled the wire off the switch. Switch measures good. 12V on wire. Shorted connector, no brake lights.

5 Answers

84,375

Is fuse correct size? I have seen where an oversized fuse will not blow, but will not allow brake light function. Just a thought. Should be a 10 or 15 ampere fuse.

4 people found this helpful.
30

I have the same problem,..found the wire at the switch atached to the connector, but not making contact. upon inspection the wire came out of the connector housing... now I am trying to figure out how to get the pin out of the connector. apparently you need a tool to extract the pin... I'm stuck at this point...

3 people found this helpful.
2,925

to light up any lightbulb, you need 2 things: A power and a ground. I would go to the trunk and remove one of the taillamps. Have an assistant press the brake pedal, or rig some type of rod between the driver's seat and the brake pedal to hold it down. Then check the connector at the taillamp bulb itself for power and ground. depending on the type of lights your car has, the connector for the lights should have 2 or 3 wires per bulb. A 2 wire connector has one power and one ground. A 3 wire connector has 2 power wires (one for parking lamp, one for turn signal/brake) and a ground wire. it is not uncommon to find a faulty ground at the taillamps. Testing it this way will tell you if the power you have at the switch is making it to the light bulb, or not.

4 people found this helpful.
20

all the lights work except the flasher/brake light on the left rear

2 people found this helpful.

Your Answer:

Sable

Looking for a Used Sable in your area?

CarGurus has 1 nationwide Sable listings and the tools to find you a great deal.

Postal Code:

CarGurus Experts

  • #1
    JP1956
    Reputation
    1,940
  • #2
    Guy Outland
    Reputation
    800
  • #3
    Paul Tuck
    Reputation
    690
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Nissan Altima
22 Great Deals out of 716 listings starting at $1,400
Used Toyota Camry
52 Great Deals out of 985 listings starting at $2,212

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.