Heater display module not working

Asked by Cody Sep 25, 2020 at 03:21 PM about the 1991 Chevrolet C/K 1500 Silverado 4WD

Question type: Maintenance & Repair

I have a 91 chevy silverado and the heater control module
will not light up. Neither will my dash lights and the radio
lights go out when I turn on headlights.

2 Answers

Cody answered 3 years ago

I checked wires behind the module removed the connector and straight wired the wires. Behind the glove box there were some wires that were melted together. I straightened all that up and straight wires thos as well. Bought a new dimmer switch and replaced it as well. Still no heater . Idk I feel like it may be a bad ground or something its really hard to see the back side of the fuse box but all the fuses check out good with a test light.

Mark helpful

Cody answered 3 years ago

Also the harness connector for the heater module has power and will click one of the relays when i ensert the test light in one of them.

Mark helpful

Your Answer:

Related Questions

  • Heater display module not working 2 Answers

    I have a 91 chevy silverado and the heater control module will not light up. Neither will my dash lights and the radio lights go out when I turn on headlights.

    1991 Chevrolet C/K 1500 Silverado 4WD

    -

    Maintenance & Repair

  • heater not working 1 Answer

    heater not working in truck what are some things to look for

    1990 Chevrolet C/K 1500 Silverado Extended Cab RWD

    -

    Maintenance & Repair

  • 1994 chevy 1500 heater controls/wipers not working right 2 Answers

    i tried to turn my wipers on yesterday, didnt work... just a buzzing noise, then i checked the normal culprit, known defective motor control board, soldered that better, no change, then i noticed wh...

    1994 Chevrolet C/K 1500 Silverado Extended Cab Stepside 4WD

    -

    Maintenance & Repair

  • New Feul pump not working 6 Answers

    New feul pump not working, is there a reset button?

    1994 Chevrolet C/K 1500 Silverado Extended Cab RWD

    -

    Maintenance & Repair

  • Brake lights not working 12 Answers

    Brake lights still not working after I replaced brake switch. Running lights,blinkers,reverse all work. Fuses in panel good,bulbs good, what else can I check?

    1994 Chevrolet C/K 1500

    -

    Maintenance & Repair

Own this car?

Share your experience with others.

1991 Chevrolet C/K 1500

Write a car review

Review another car

Shortcuts

Search Chevrolet C/K 1500 Questions

CarGurus Experts

  • #1
    Andrew Olsen
    Reputation
    15,760
  • #2
    Rowefast
    Reputation
    9,510
  • #3
    John Saffrahn
    Reputation
    6,430
View All

Know more, shop wisely

Search

Related Models For Sale

Used GMC Sierra 1500
1,839 Great Deals out of 66,930 listings starting at $1,000
Used Ford F-150
6,022 Great Deals out of 132,252 listings starting at $900
Used Chevrolet C/K 2500
64 listings
Used Chevrolet Camaro
608 Great Deals out of 9,439 listings starting at $2,150
Used Chevrolet C/K 3500
81 listings starting at $4,995
Used Ford Mustang
877 Great Deals out of 23,190 listings starting at $1,150
Used Chevrolet Corvette
716 Great Deals out of 12,394 listings starting at $3,200

Used Cars For Sale

1996 Chevrolet C/K 1500 Silverado 4WD For Sale
1 listing
1995 Chevrolet C/K 1500 Silverado 4WD For Sale
3 listings

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.