Hello People, My temp button ( 2nd Button to left of Alarm light ) is totally dead. Where would I find the fuse for this and what number would it be ? Thank you Glenn
There are no individual fuses for these buttons. The instrument panel provides power. The button itself is probably faulty or perhaps wiring. Probably not so easy, but you could try to check for continuity between the switch panel and the instrument panel. The wire is blue with a yellow stripe. Here's a wiring diagram I prepared earlier: https://www.dropbox.com/t/yRslemfhltZuMyBG Maybe you can open up the panel and clean the switch contacts? I don't know if it is a sealed unit or not. Image Unavailable, Please Login Good luck!
Not relevant, but I've just added the wiring for the alarm LED on that side panel in my wiring diagram... https://www.dropbox.com/t/0tzvlCtCQNx5jKNW Link expires in 6 days. Anyway, let us know how you go.
Please let us know if you find joy. Mine stopped working 2 years ago. I thought I had to buy the entire unit
Funny that u posted this. My mileage button that switches bw trip and total mileage is starting to not work. Let us know if you have any luck!
Wiring diagram revised to show the simple internals of the pusbutton panel: https://www.dropbox.com/t/YPqgJjpyOwaSNQcv
LOL.... Think of it as trying to ride the Japanese Metro system. Sooner or later, someone will see you scratching your head and offer to help. Everything begins at the battery (or alternator if the car is running). If you know how relays, diodes and potentiometers work, you can solve 90% of wiring problems.
Updated diagram with more Motronic ECU wiring, a reverse gear switch circuit and an accelerator pedal circuit... version 6 https://www.dropbox.com/t/SqDbhSeCdpJWqsoO I've nearly completed some engine diagrams
