What would make the Dash lights blink when the turn signal is turned on?

Tiny
BMAC2563
  • MEMBER
  • 1997 GMC SUBURBAN
The headlight wire in the turn signal switch wore into and caused the headlights to quit working. We changed the signal switch out, but after changing the switch out we have no daytime running lights, no left turn signal sometimes, and when u turn the head lights on; u have no left turn signal. When u turn the lights off and turn the left signal on both the left and right blink. The right signal blinks fine when u turn it on. Also when u turn the hazzard lights on the dash lights flash along with the radio lights. They also blink sometimes ben u turn the left signal on. Can u please help me diagnose this problem?

Thanks brad mcmillan
Tuesday, November 8th, 2011 AT 5:46 AM

2 Replies

Tiny
BMAC2563
  • MEMBER
  • 2 POSTS
I also checked all fuses and relays and they are fine.
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Tuesday, November 8th, 2011 AT 5:57 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
I would suspect the cluster has an issue with a feedback. Check the connector at the cluster for bad connections. Are there any bulbs out in the cluster? The back of the cluster is a printed circuit board and it may have a poor connection or corroded connection.

Roy
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Tuesday, November 8th, 2011 AT 2:25 PM

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