2000 Park Ave Electrical Issues
I have a 2000 Park Avenue base that has a weird intermittent electrical problem.
The first sign of the problem is that the doors don't unlock with the remote.Then the windows don't work using any of the switches. While driving, if you turn the heated seat on and then off after a few minutes the airbag and security lights will illuminate, the orange light that indicates what gear the car is in will turn off, all of the values under gage on the DIC will turn to question marks, the fuel info on the dic will turn to dashes, and sometimes the TRAC OFF light will turn on and the gear indicator will reappear.
Turning the car off and then back on will make the airbag and security lights go off but you can get them to turn on again by turning the heated seat on then off.
I read on alldata that the DIC will turn to question marks and dashes when the DIC loses contact with the PCM. That leads me to believe it is a problem with the class II serial data link. Is there a way to test that?