VW Golf Mk4, Bora, Jetta Turn Signals or Hazard Switch don't work. How to fix! - YouTube © 2023 Google LLC In this video tutorial we are going to show you why turn signals switch or hazard Get in your car, close the door, and cycle the key (turn the key on, but don't crank the engine, then turn it off again). With the key still in the ignition, open the door. Get out of your car. Lock it like you normally would, which I would assume is your keyfob. Wait about 15-20 seconds, and then using the key (CRITICAL: do not use the remote Check the wire with multimeter. If the problem is the ground connection, you may not need to go as far till the front indicator. Ground should be a brown cable and indicator wire should be a black/brown cable for left side and black/green for right side. That said, the wire does not move around, so it should not be broken. Quick fix to a problem regarding mkiv golf headlights not turning on when light switch is turned on Jan 14, 2003. #11. Re: Headlight problem - high beam indicator won\'t go off, no headlights. You've got a grounding problem with the headlight circuit. With all of the headlights unplugged, measure the resistance between the ground terminal on each headlight conector, and a good chassis ground. This should, ideally, be 0 ohms of resistance. Mk4 Golf . Tags mk4 golf. Jump to clicking noise from behind the AIR VENTS then no fans for heater NO indicators working or windscreen wipers front or rear I do not need that. My advice: get yourself an AA battery powered LED torch and some cupboard lights. I must admit that my Mk4 does not have any "convenience module" so a simple fuse removal did the job. Maybe I'll connect the interior lighting back to the battery one day but for sure this won't be a starting battery. Keithuk. 9163 posts · Joined 2010. #3 · May 6, 2012. Well to check if you have a vacuum source to the brake servo pump the brake pedal a few times to exhaust any vacuum in the system. Hold your foot on the brake pedal and start the engine the brake pedal should move down slightly which shows the vacuum is operating on the diaphragm. Keith. gdQl10z.