Aboutautohelp Expertise On hands professional expertise in all aspects of Cadillac diagnostics and repair mid 1970`s thru 2000 year vehicles. GM certified in electronic fuel injection, Automatic transmission, Heating and A/C, and onboard vehicle computer diagnostics.
Experience Held over 15 GM certifications prior to retirement in 1989.
Organizations Prior to retirement held several ASE certifications, numerous Factory certifications.
Question Hi there, I have a 1999 STS, my driver side heated seat does not work. I know for a fact that the switch works because I flopped the driver and passenger side wires and the drivers switch worked the passnegers heated seat when I did that. I know for a fact that the heated seat pads are working because I just bought them brand new from a dealer, butt and back. The wires are hot all the way down to the "heated seat controll unit" which is where all the wires for it run to. There are 2 hot wires going into the heated seat controll unit, I assume one is a high setting wire and one in the low setting wire. So my question is, is it the heated seat conroll unit? The way I see it thats what it has to be, but your the expert any ideas would be very helpful. Thanks for your time!
Answer The ONLY way to determine what is at fault is to perform simple test procedures using a DIGITAL VOLT/OHM METER which you can purchase at Wal-Mart for $20.00 or at any auto parts store.
You need to e-mail me at: onlineautohelp@msn.com in order to receive electrical schematics and test procedures.
