Are any of the control boxes (you mean the push button array here right?) known to be good? Like you can put them in another car and they for sure work? The problem is you're suffering just about the most common failure. If all the boxes you're messing with are 20+ years old its quite possible for them all to be broken the same...
-Curt Date: Thu, 01 Dec 2011 17:50:14 -0500 From: Mike Esh <michael...@me.com> To: Mercedes Discussion List <mercedes@okiebenz.com> Subject: Re: [MBZ] Mono valve voltage readings -please help Message-ID: <93499b2d-4baa-47bf-8e14-97aece39f...@me.com> Content-Type: text/plain; CHARSET=US-ASCII Jim, I hooked a taillight bulb to the leads going to the mono valve and still get the same readings I did with the multimeter. I did not get blinking lights at any settings, solid on, solid off. I hooked up five different control boxes and got the same results. I am at a loss. Mike Michael E. Esh On Dec 1, 2011, at 12:23 AM, Jim Cathey <j...@windwireless.net> wrote: >> ...Zero volts when defrost button is pushed. > > No voltage == heat, +12V == no heat. PWM (in the seconds timeframe) > for in between. If it's never getting juice, the valve is not your > problem and you need to look at, say, resoldering the control panel. > (Oh, and fuses, temperature feedback plumbing, etc.) > > -- Jim > _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
