98 k1500 brake light problem

Asked by Jay Jan 29, 2020 at 07:20 AM about the 1998 GMC Sierra 1500 K1500 SLT 4WD Extended Cab SB

Question type: Maintenance & Repair

I changed the brake booster out on my truck a few
days ago and the brake work well now but brake
lights are non existent. I found a Chinese looking
wire harness hanging under my dash after I got the
booster done that I never noticed loose before.
They run to multiple things under the dash, a relay
and tie in to some other wires under the dash all
factory looking except for the wire harness. Has 2
plugs and a fuse built in. Any help to getting my
brake lights back on would be greatly appreciated.
I have turn signals and running lights still. Bulbs
are good, fuses are good, brake switch seems
good but unsure how to actually test it.

1 Answer
101,625

KenF answered 4 years ago

Did a shop do the work? Have them review their handiwork, they may have left a harness unplugged. If you did the work then I can only suggest you look under the dash to see where this plugged in, as well as check your brake pedal position switch. (That's a switch on the brake pedal lever arm that triggers the lights when the pedal is depressed, if it gets nudged out of alignment with the lever arm the brake lights won't come on.)

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • 98 k1500 brake light problem 1 Answer

    I changed the brake booster out on my truck a few days ago and the brake work well now but brake lights are non existent. I found a Chinese looking wire harness hanging under my dash after I got th...

    1998 GMC Sierra 1500 K1500 SLT 4WD Extended Cab SB

    -

    Maintenance & Repair

  • Brake light problem 1 Answer

    Ok. Can't get my right brake light to work. Have replaced bulbs, fuses.... the blinker works and tail light, but not the brake light. I've also someone look at the brake switch, no luck???

    1995 GMC Sierra 1500 C1500 SL Standard Cab LB

    -

    Maintenance & Repair

  • 98 GMC Z71 brake light, new bulb didn't fix 2 Answers

    The passenger side brake light wasn't working, so we assumed it was the bulb. Purchased a new bulb, installed it, and same result. The brake light, tail light, and turn signal on that side do not ...

    1998 GMC Sierra 1500 K1500 SLT 4WD Extended Cab SB

    -

    Maintenance & Repair

  • brake light flashing 1 Answer

    On my 91 k1500 the brake light started flashing. Six short and one long. Not abs not equipped. Any thing else come to mind.

    1991 GMC Sierra 1500 K1500 SLE 4WD Standard Cab SB

    -

    Maintenance & Repair

  • brake problem 5 Answers

    I have a 1990 GMC Sierra 1500 v6 and my caliper on the right passenger side doesn't want to release which causes the brakes to wear out faster I just switched out the rotor caliper and brakes........

    1990 GMC Sierra 1500 C1500 Standard Cab SB

    -

    Maintenance & Repair

Shortcuts

Search GMC Sierra 1500 Questions

CarGurus Experts

  • #1
    yetilikesbeer
    Reputation
    12,350
  • #2
    dragonflyoffshore
    Reputation
    11,510
  • #3
    John Saffrahn
    Reputation
    11,450
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Silverado 1500
177 Great Deals out of 7,375 listings starting at $6,995
Used Ford F-150
319 Great Deals out of 13,512 listings starting at $3,888
Used Chevrolet Silverado 2500HD
21 Great Deals out of 1,571 listings starting at $5,990
Used Toyota Tacoma
41 Great Deals out of 786 listings starting at $9,975
Used GMC Yukon
10 Great Deals out of 930 listings starting at $6,900
Used Dodge RAM 1500
80 listings starting at $5,000
Used Chevrolet Tahoe
18 Great Deals out of 779 listings starting at $7,499
Used Ford F-250 Super Duty
28 Great Deals out of 750 listings starting at $3,990

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.