I originally posted this in the tech section, but they thought yall might be able to help:

I just purchased a 2001 929 with approx 24000 miles. It's in great shape overall, but there are small electrical issues which I think are somehow related.

1. The right button on the digital display does not work.
2. The digital display will randomly switch between trip A and B, as well as switching from mph to kph. I press the left button and it will switch to the other trip selection and usually go to mph also.
3. The turn signals do not turn on consistently. When I slide the switch, there is sometimes a delay, sometimes they work just fine, and others the do not work. I've found that applying upward pressure on the slide seems to help.

Love to hear your suggestions.

 

Buy a new tach off of fleabay.

 

I was hoping for a simpler solution.

 

take is apart. sounds like the spring is binding in the button. strech the spring out and put her back together. also clean the contacts. If that doesnt work buy and newer tach

 

Is there a guide to taking the dash apart? At the very least, I'd love to know all the tools I'll need before I start.

 

10mm socket to take out the large bolt holding it in at the top. Then just unpulg the connector in the back. From there its just a bunch of philips head screws to separate the outer case.

I still think it would be worth replacing the tact switches on the board. cheep fix. or you could temporarily remove the switches and see if still changes on its own. If it doesn't, then you know the switch was the problem.

 

I may give that a try. I probably won't get around to it till next weekend though. I'll keep you updated.

Thanks for the help!

 

What was the outcome? Mine is doing the same thing...