This is happening in both my envoys (yes the wife liked mine so much she bought one). The seat pad is out on all four seats but I don't think it's the common pad short/broken wire. I've tested continuity on all of them and no break was detected. In fact to be safe I replaced one of the pads. The old one looked almost pristine and the new one does not work. I'm not sure what my next step is. To summarize:
All door switches light and work as they should
I've read there are separate controllers (DDM and PDM) in the door for each seat in the older Envoys but can't verify if that is the same for the 07/08. I've gone through just about every seat heater thread on every envoy board I can find. They almost all seem to result in the shorted pad so I'm really not sure what my next diagnostic step is. Does anyone have any suggestions?
All door switches light and work as they should
- The back heaters all work
- All seat motors work (except one driver lumbar that is on my list)
- These are 2007 and 2008 Envoy -Denali trim
I've read there are separate controllers (DDM and PDM) in the door for each seat in the older Envoys but can't verify if that is the same for the 07/08. I've gone through just about every seat heater thread on every envoy board I can find. They almost all seem to result in the shorted pad so I'm really not sure what my next diagnostic step is. Does anyone have any suggestions?