No turn signals

Tiny
DRC1989
  • 1989 CHEVROLET TRUCK

Electrical problem
1989 Chevy Truck V8 Four Wheel Drive Automatic

My turn signals quit.I changed the fuse, flasher fuse, turn signal switch, head lamp switch. Flashers all work but no t/s. Only half of instrument cluster is lit up now

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Sunday, February 7th, 2010 AT 3:02 PM

7 Replies

Tiny
JDL
  • EXPERT
  • 16,343 POSTS

Welcome, just talking about turn signals. Did you check circuits at turn signal switch while you were replacing switch? Sure would have been a good time.

Here is a guide and some diagrams so you can do some testing

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

There is probably a multiwire connector under the dash close to steering column, for circuits going to and from the column. You can see wiring colors in diagram. Use testlite on proper wiring circuit, see if it is hot when it should be?


http://www.2carpros.com/forum/automotive_pictures/170934_89_turn_switch_diagram_1.jpg



Larger diagram below, sorry they are in pieces.

Please let us know what happens so it will help others.

Cheers

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Sunday, February 7th, 2010 AT 3:27 PM
Tiny
DARKESTNIGHTS
  • MEMBER

Ok I had a simuler problem so I checkt my tale light circut bord that I pug my lights in too and found them rusted and messing up the connection so I replaced both of them and now I dont have the problem and for your instement cluster lights there is a conection by the flasher that is rufly about 2.5 inches long and one on the colum one of the 2 might have come loose

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Thursday, August 19th, 2010 AT 9:44 AM
Tiny
2CARPROS KEN
  • ADMIN
  • 11,727 POSTS

Great addition to this thread! Please feel free to help out whenever you are on the site :)

Cheers, Ken

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Wednesday, October 18th, 2017 AT 3:43 PM
Tiny
DRTTRKRCR8D
  • CHEVROLET TRUCK

I have a 83 K10 chevy and when I have my lights on my left turn signal wont blink the right one does and they both work when the lights are off I checked bulbs and they are all good and cleaned grounds but cant figure it out is there any help out there?

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Wednesday, October 18th, 2017 AT 3:43 PM (Merged)
Tiny
GSOLLENBERGER
  • MEMBER

Having grown up back east where cars rust a lot, this problem is typical of losing the ground, whether at the bulb, in the socket assy, or even the ground to the fender and/or frame. The lights work without the parking light because they get a ground through the park filiment to another ground at another socket. That ground goes away when the lights are turned on.

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Wednesday, October 18th, 2017 AT 3:43 PM (Merged)
Tiny
BOBBY MCGUIRE
  • 1986 CHEVROLET TRUCK
  • VR5
  • 4WD
  • AUTOMATIC
  • 40,000 MILES

So it started with a running light going out and now both running lights are out and eventually no turn signals are working. How can I fix this

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Wednesday, October 18th, 2017 AT 3:43 PM (Merged)
Tiny
HMAC300
  • EXPERT
  • 49,777 POSTS

Does the flasher get power? Are the bulbs good? Ground good in back? Poer going to all the bulbs? Might be a t/x switch

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Wednesday, October 18th, 2017 AT 3:43 PM (Merged)

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