Question about 2000 Volkswagen Jetta TDI
It sounds like the common ground connection for the control panel is electrically broken.
Since the ground path is broken, electrical current back feeds through other things on the control board causing it act like it lost it's mind.
Usually caused by corrosion of the circuit by moisture due to AC condensate collecting in ducts under dash. There is a drain for this and they often plug up causing problems in cabin area. Check this too while you're at it.
If you can get a wiring diagram or schematic, try to jumper out the the grounding circuit with another electrical test cable with small alligator clips on either end.
If problem abates, that's the issue and just add additional wire around the corroded circuit one, which would be very difficult to repair.
Posted on Sep 22, 2017
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Posted on Jan 02, 2017
SOURCE: I have a 2001 Jetta
Hi, here are some ideas to get some of this stuff fixed:
For the mirror, if it was a glue-on, they make a repair kit for those you can buy at the parts store.
For the A/C panel, check the 25 amp A/C fuse. Not sure if it's in engine compartment or fuse panel inside the car.
For the brake light, check the fluid level in your brake fluid reservoir. If it is low, top it off. If not, you may have a loose wire under the handbrake boot.
Let me know what you find out, and we'll go from there, and thanks for using FixYa.
Posted on Jan 27, 2011
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