Not always when something in the system such as the auxillary pump going bad draws to much power the system shuts down to protect its self. If you dont have it get the w201 manual it has a section on the Tempmatic system it will help you familuarize yourself with the system and come in handy later.
I am beginning to think you are correct on the switch being bad. Replace it and see if it works if it dont then something else is bad causing it to shut down. There is some real good testing procedures in the manual for the system. Let me know what you find
__________________ Why dream of just any vehicle, when you can dream of owning one that was never imported.
Last edited by HATTENATOR : 02-21-2008 at 06:12 PM.
ya know i would love to just jump out and switch that thing out but i dont have the money to do that right now...i took out the switch and took the housing apart and cleaned everything off real nice and made sure that it all looks right but is there a way to test it or to test the relays that are in there next to it? or is there a way to cross those wires and bypass the switch for now and just to check to see if thats the problem?
yes you can test it get the manual above it is a large file. I messed up and posted the wrong link before now I fixed it. There is testing proceudres for just about every part of the system alog with wiring diagrams that will show you what should be hot when the switch is in a certain position. Did you check the fuses in the top of the OVP relay behind the battery. Its a long shot but might as well make sure there good they can cause lots of problems. You might also try starting the vehicle turn your fan on and the wiggle your key switch around even turning it back a little sometimes the ignition switch goes bad and can cause a problem with the other electrics in the vehicle.
Also check this if you have not. on some models there is an auxillary fuse box seperate from the main box it is located on the same side as the fuse box just further forward see pic it will house a fuse for the blower and it should be 30 amps. I also attached a wiring diagram for your car below
Last edited by HATTENATOR : 02-21-2008 at 06:59 PM.
checked the relay behind the battery and there bolth fine i checked that this morning hmm lets see i will look through that guide again i already downloaded it today once and it seemed to be a little messed up when i tryed installing it so i had to go into it and find the single pdf files on there own and sift through them all but ill look through again..and the fuses in the aux fuse box are all fine i checked them there are two red fuses and then the plug style fuses (relays?) i dont know how to check them but they looked fine as well
you can search those files in adobe reader just open adobe and click on edit and then go to search then select the file where the pdf's for the manual are and type in a word for what you are looking for. Remember in this search sometimes less is more.
yeah i found the pdf file and im not sure what im soposed to be lookin for it doesnt really tell me how to test the fan switch to see if thats whats broken
I would check to see if you are getting any power to the switch. If power to the switch test to see if power is leaving the switch and use the scematic to tell you what it is going to. if you have no power to the switch then you will have to back up to the protection relay and fuses. then you may want to do an ohm test on the resistor behind the battery it is what tells the fan how fast to go. I am not sure how many ohms it should carry. You might also try a direct power test to the blower motor and check blower motor connections.
Last edited by HATTENATOR : 02-21-2008 at 10:53 PM.
well i grab a light tester from my dads garage and checked the wired behind the switch and im getting power to all of them so i belive i need to check the blower motor next if im not mistaken? and then i got a voltage meter with ohm test and continuity but how would i check the ohm load on that resistor im new to this kindof conplex electrical thats why im a little hesitant to things like this but i wanna do it myself befor i BLOW a shit ton of money in a shop for them to do some little gay trick and then charge me the alldata time for it lol but i wont be able to get to that till monday i work all weekend and monday is my day off cuz im guna do this right and right the first time so ill take it to my budys shop and use all his tools and what not
I would start by testing the motor. In the tempmatic tutorial is the process for removing the blower. I am not sure if you will have to take it all the way out to test it but it is not a hard task if so. let me know what you find at the motor and we can go from there
Why dream of just any vehicle,
when you can dream of owning one that was never imported.
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