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View Full Version : 2003 Cadillac escalade-mirrors will not fold, heated driver seat not working


vetman66
Jan 30, 2011, 05:19 PM
Outside mirror not working,the drivers mirror does not move,when I turn the switch to the passenger it works fine,and when I put the switch in the middle to fold in ,nothing happens.also the heated drivers seat not working...

TxGreaseMonkey
Jan 30, 2011, 06:22 PM
Test all under dash and under hood fuses with a test light or multimeter:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563-3.html#post252145

CaptainRich
Jan 31, 2011, 08:23 AM
You could find out a lot with a GM Tech II scan tool. It will show you switch inputs, etc and DTCs for that body system, but for your problem you'll probably need a Driver's Door Module (DDM) replace and reprogrammed/reconfigured.

vetman66
Jan 31, 2011, 05:53 PM
Thanks, captain rich are you from new england? I see you like the pats... im from charlestown originally.. anyway what is a DDM ,and where is it on the truck,also where do I get a gm tech II scan tool.. thanks in advance... steve

vetman66
Jan 31, 2011, 05:56 PM
I checked the fuses today,and they all look good? Captain rich mentioned it might be a DDM, I have no idea where it would be on the truck to check it...

vetman66
Jan 31, 2011, 07:07 PM
Where would I purchase the DDM,and does it need to be programed by the dealer to work?

CaptainRich
Feb 1, 2011, 06:19 AM
Yes, I'm a Patriots fan since 1984! I lived in NH for 11 years.
Go Pats! Unfortunately, they played like the Jaguars when they played against the Jets during playoffs...

Anyhow, the Driver's Door Module (DDM) is inside your driver's door.
It will likely need configured or programmed and currently the dealer is your best bet for the work. Even if your issue is intermittent, the DDM may have stored a DTC B3941 and there is a software update that could resolve the problem.
The dealer will likely want to verify what failed so both you and they know for sure what to repair. It may not be your module. There may also be more than one failure, too...