1990 Oldsmobile Cutlass Ciera Logo
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philip joyner Posted on Jul 06, 2015
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Turn signals won't light up or flash

All other lights ok, hazard works, all fuses ok. could flasher unit cause this?

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Jaime

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  • Posted on Jul 06, 2015
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Test the arn?s on the light side. If you got juice there . Then replace the hole deal. If you dont get anyrhing. The is your turn anddle stick.

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  • Posted on Jul 06, 2015
 SeabeeMechanic
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Would help if you supplied year, make, model and if anything happened prior to the problem being noticed.
First, you can check the fuse. location varies by car. Use a test light and if you power on both sides, check to see if you have power at the flasher relay.
Second, flasher relays tend to short to power. Location varies by car. You can also use a test light to check power going in and coming out of flasher. Power out is checked by slightly pulling the relay out enough to put test light probe in contact terminal.
NOTE: depending on year, make and model the flasher reply is part of the Hazard light switch.
Good luck and keep us posted.

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2000 Jeep Cherokee: with the tun signal lever in the rear position (head lights on "LOW"beam) and then activated for a "LEFT " turn, both rear turn signals blink.

Does it do the same with the lights on 'High' beam? If it works correctly on 'High' beam it could be the switch in the lever at fault.
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Turn signal does not work

Hi there,

I'm assuming neither of your turn signals work?

Firstly, check the 15A Turn fuse in the fuse box. If fuse is ok, then operate your HAZARD light function.

If no Hazard lights operate, then suspect a probelm with the Turn Signal Flasher unit.

If Turn signal flasher tests ok, then fault lies within the Turn switch.


"If this has helped you in any way, please rate this solution"
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Under the dash is a flasher unit. Replace it and everything should start working again. The flasher unit is very inexpensive and available at most parts stores.
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