I have something weird going on with my car. One of the days, the right and left turn signals did not show on the dash board as I was driving. I stopped and checked, and the actual lights on the car were blinking. Next, the radio started to display “disabled” and the AC stopped blowing the cold air.
The following morning, as I started the car, it was fine. I took the car to the dealership and they said there was nothing wrong with it (yet, they charged me for the diagnostics).
The car was fine for a while, and now it started to do it again, but it comes and goes. I think it does it when it is hot, but this could be a co-incidence.
I took the car to a mechanic (not a dealership), he was not able to tell what’s wrong. Any ideas as far as what this could be?
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Well, you're dealing with a short. If the right turn signal only works the right side bulbs, you know you're issue must be in the switch. The only way left turn signal would light the right side, but the right signal would not light the left is if you added a diode, which I doubt is the case. So the switch itself is suspect. That or a wiring issue. If you just bought the truck, and this is an existing issue I'd suspect wiring. If it just started doing this I'd suspect the switch.
I would check to make sure someone didn't monkey with the wires and switch the left turn signal with the hazard lights or something (do your hazard lights happen to flash only the left turn signals?). If it has or had an aftermarket alarm you need to check their work and see what may be screwed up. Alarm systems often tap into the parking lights, which will look like all 4 turn signals, but are actually dimmer filaments. Flashing the parking lights would actually make your radio flash too, so I'm kind of leaning this way. Can't say for sure on limited information though.
This is weird! It seems to me that the left turn signal is getting 12v from somewhere at all times.I don't think the flasher is the problem(most GM systems use a single flasher for left and right)You probably have a crossed wire somewhere(or an add on accessory was connected to the left signal wire,allowing 12 volts to bleed through to the circuit)
Try replacing the Flasher first before spending to much money for a possible simple fix. If it's not your flasher then it could be the turn signal leaver.
Ok, this may seem stupid, but that's what they did to the blazer. They set the flasher near the middle and under the center console behind the radio. It's to the left of the radio right behind the dash. The hazard flasher and the turn signal flasher are side by side. It right next to the Cig lighter behind the panel. They do mark the turn signal from the hazard flasher on the plastic behind them. Turn is on the right. Good luck and hope this helps.
left to right... 1. empty 2. e flashers 3.horn, brake lights 4.clock, trunk light, inside light, radio 5. rad. cooling fan relay (AC only) 6. right side running lights 7. left side running lights 8. right high beam and indicator 9. left high beam and indicator 10. right low beam 11. left low beam 12. reverse,turn signal and inst panel 13. main and transfer fuel pumps, auxiliary air reg., ox sensor heater 14. license plate and glove box light 15. wipers 16. rear defogger 17. heater blower (no AC) 18. cig lighter 19. rad cooling fan (no AC) 20. Heater blower (AC) 21. rad cooling fan (AC only) 22. empty 23. Ox sensor, idle stabilizer,seat belt warning relay, (Digifant only, control unit, idle boost control, idle boost valve) 24. inst panel lights, heater control lights 25. reading lamps 26. empty 27. empty 28. empty