Ok, I scanned and got that error, could someone please explain what could be causing this?

Quad Driver Module 3??? Anyone? Thanks.

 

Not sure of the exact code but a code related to the quad module is a series of grounds in your PCM. It controlls various functions liek EGR, A/C ect. Could be either the PCM or one of the circuit grounds related to the PCM grounds. Best thing to do is hopefully find the dealer service manual schematics on this. There are several grounds in that circuit whihc it controlls and it is either the PCm itself or one of those several circuits.


Most of the time if it is PCM related, your car will do wierd things.

 

Thanks so much.