Left Turn Signal Not Working

Asked by GuruCLWQL Feb 18, 2019 at 06:18 PM about the 2004 Chevrolet Trailblazer LS 4WD

Question type: Maintenance & Repair

Left turn signal not working. All other rear lights working. We have tested the
bulb, fuse, and bulb socket.

2 Answers
11,615

FJ4072 answered 5 years ago

Could very well be your flasher relay located where your knees would be. Behind that panel is about a 3" long flasher about an 1-1/2" wide. Different years have slightly different location, but are right behind that panel. Mine is attached to the back of that panel. Try pulling one from a junkyard to test it. I had the same problem 3 weeks ago with my flasher on drivers side. I'm running an LM486 flasher which is LED bulb compatible, no need for resistors anywhere with this flasher.

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That_one_sad_trailbl... answered 5 years ago

Check wiring to the back of the headlight itself, i had a wire rust off the passenger side light (headlight worked but not the blinker) and needed to solder it back on. After that the blinker worked fine.

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