Turn signal lights quit working?

2002 CHEVROLET CAVALIER
35,000 MILES • 2.2L • 4 CYL • 2WD • AUTOMATIC
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AUTREY JUSTICE
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  • 2 POSTS
Sometimes without warning signal lights quit working. can turn flashers on and back off they start back working. park lights quit without warning turn flashers on and back off start working. now gas hand quit working and speedometer quit. park car went in store when got to car started up everything working again. what could be problem?
Sep 5, 2020 at 12:01 PM
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JACOBANDNICKOLAS
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  • 110,175 POSTS
Hi,

That is an interesting one. Since they start working after the hazards are turned on, it isn't a power supply issue (not a blown fuse).

I looked at the wiring schematics (and this doesn't pertain to the speedometer), and suspect the multi-function switch may be the problem. If you look at pic 1, power from both the signal flasher and hazard flasher go through the switch. I suspect something in the switch is failing.

The only other thing would be if there is a faulty ground. There is a ground splice under the battery that can corrode and cause issues. I attached a pic below indicating locations of the grounds. Check them before replacing the switch, but I feel it's more likely a switch related issue.

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Let me know if this helps or if you have other questions. If you decide to replace the switch, let me know.

Take care,
Joe
Sep 5, 2020 at 5:17 PM