Check the fuses and the flasher unit.
If the 4 Ways/Hazards are disconnected then neither will work the park lights nor the turn signals.
The 1990 VW Jetta turn signals will not work when the ground wire is broken or corroded. The turn signals may need the lightbulb's replaced.
have you tried replacing the flasher u need to replace the flasher can for the turn signals there are 2 one for hazards and one for turn signals usually found in the fuse box, and cost about 3 bucks
Well if your turn signals still work its not a short. I just fixed a pinched wire on my 96 and now my turn signals dont work. But according to a buddy of mine on Clubintegra.com there is a chance the fuse for the hazards is blown.
hazards and turn signals have separate flashers. replace flasher for turn signals
It could be the turn signal bulbs, some vehicles use separate bulbs for the hazard and turn signals. It could also be a bad switch or wires for the turn signals.
There are two flashers, one for the hazards and one for the signals.
If the turn signals are inoperative check the hazard switch, if the hazards don't work replace the hazard switch, the signals will start working. if the hazards are ok ,the turn signal switch may be bad.
Turn signals and hazards are two separate curuits. Check/replace your signal light fuse and flasher.
Turn signal flasher module?
you have a bad turn signal flasher.
Well - it could be the turn signal unit in the steering column - if its a high mileage vehicle it may just be worn out. you have to remove the steering wheel and replace the unit - the part on a GMC is about $30 +/-. This may fix the problem.