Lifetime Premium Member
Car: 2006 Chrysler 300 SRT8
Join Date: Jan 2010
Location: Ottawa, Ontario, Canada
Thanked 13 Times in 12 Posts
I would first disconnect the battery and tie the cable ends together for several minutes to zeroize (shunt to ground) any memories in the car.
It costs nothing too.
These cars are also very sensitive to voltages.
I had an aftermarket trigger relay for NOS pull the TBS voltage down just .10 of a volt and the car would go limp.
Disconnected the relay and all is good.
Even a weak battery can cause goofy issues.
Just my experience ....