Brake lights

Asked by GuruBN15V Jan 06, 2019 at 08:32 PM about the 1994 GMC Sierra 1500 K1500 SL 4WD Extended Cab SB

Question type: Maintenance & Repair

Brake lights work when headlight switch is off
want work when headlight switch is on have
replaced headlight with new one  

2 Answers

9,500

It will be one of the following, check the bulbs for proper number and the filaments are good, ch ck the sockets to make sure the bulbs fit correctly and finally the ground wires going to the sockets can be disconnected or broken or bad, I hope this helps, take care.

GuruBN15V, I have a 91 Scotsdale with the same problem. Previous owner had trailer wired in at some point so bunch of splices remain. Started with bad ground on rear frame. Next was driver side circuit board. Then was to replace headlight switch, Then was a bulb lead that melted into lamp base housing only required to bend back out towards the contact in fixture. Then the ground again, but now when I turn on headlights the rears get dim. But when I put it in gear the rears go out completely.

Your Answer:

CarGurus Experts

  • #1
    yetilikesbeer
    Reputation
    12,290
  • #2
    dragonflyoffshore
    Reputation
    11,440
  • #3
    John Saffrahn
    Reputation
    11,410
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford F-150
343 Great Deals out of 12,723 listings starting at $599
Used Dodge RAM 1500
86 listings starting at $7,995
Used Toyota Tacoma
43 Great Deals out of 682 listings starting at $9,975
Used GMC Yukon
15 Great Deals out of 936 listings starting at $5,998
Used Chevrolet Tahoe
18 Great Deals out of 859 listings starting at $9,980

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.