It is a 2003. I just did the ECU reset built in code reader trick and got 2 codes. 1211 ABS/ TCS Control Unit and 0327 Knock Sensor. Not sure why it is different to garage snap on reader? Wonder if the ABS/TCS is related to when I had the rear drop links done. They had the remove some sort of sensor attached to rear anti roll bar........annoying thing is I still have the knocking upfront that led to all this work in the first place. Chasing my tail into a bottomless money pit.