: How to Test the ECU on a 07 Cadillac Escalade AWD

12-23-11, 04:09 PM
I have some problems with my cadillac. Right now, I have the engine light on, with a code P0300. (The mechanic changed spark plugs and wire. He also check O2 sensors). When, the engine is running, (parking or running), Sometimes, I have the Stabilitrak and traction control message on the Dash and the engine light blink at the same time.

Thank You

12-30-11, 10:30 PM
I had a similar problem, and a buddy who had an 07 told me to disconnect the battery for an hour or so, when you reconnect the sensors will all reboot or something of that nature, well it worked and I haven't had any sensor issues since (knock on wood).