While running a new switched 12v positive wire from the ignition switch to the overhead cabinets for the new MCD shades I noticed these 2 switches mounted under the dash panel cover. The switch on the left is a simple on/off switch. the one on the right is spring loaded to the middle toggle switch that will rock both up and down. I have absolutely no idea what they control. Any help out there?
Thanks, Nick
Maybe the switches you use for diagnosing retrieving ABS brake system codes? I think if you do a search here you'll find something on that.
Good luck,
chris
I believe Chris has it right. A search for "blink switches" provides many results, including this one:
More questions from a new owner (http://www.foreforums.com/index.php?topic=14613.msg85708#msg85708)
Nick I don't want to steer anyone wrong but after a year of wondering and reading a lot of threads on these switches I discovered that the spring loaded switch controls my idle. With the engine running I can toggle the switch up to increase the idle and down to decrease. I can't remember how much it goes up or down at each operation of the switch but you might try it. Works for me.
I found two mystery switches under the cowling of my 1997 U320 while working on the dash AC. One of them increased/decreased the idle and the other switch turned the tachometer on/off. I assume they were added by a PO because the labeling was not correct.
Steven