07 Control Head security Access Code needed

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Jun 15, 2016 | 09:49 PM

#11

MP4.2+6.0

AudiWorld Super User

Joined: Oct 2001

Posts: 15,311

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From: SF Bay Area, CA

Quote:

Originally Posted by hellonwheels33

I did think of using a short wire or paperclip to jumper the two points on the switch to see if the button was bad. I may still do that.

EDIT: Going to pull the center control out and get to the circuit board to jump pins on the button. I figure if the micro switch failed from the soda spill then I will solder out the telephone M-switch with the car M-switch since I know it works and do not use this feature. Will report back with updates this evening.

Okay now I get it. Coca Cola maybe, but I call it Pepsi Syndrome, like the SNL skit back in the day as the spoof about the 3 Mile Island nuke meltdown when the Pepsi met the control panel. And like the meltdown, likely all over if either the soda or the various coffee brews with any sugars, milks, flavors, etc hit it. Cleaning and drying has sometimes worked for purer liquids, but toward sodas and such, even early on (and warranty excluded) those killed more than a few MMI switch boards.