Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, PCM/ECM Reflash? in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; I have a 2006 CTS with 2.8. Are the PCM and ECM two separate boxes and where are they located? ...
- 05-11-13 02:06 PM #1Cadillac Owners Member
- Automobile(s): 2000 Escalade, 2006 CTS, 2008 SRX
- Join Date
- Jan 2010
- Georgetown Texas
I have a 2006 CTS with 2.8. Are the PCM and ECM two separate boxes and where are they located?
And can only a dealership reflash them? I want to try reflashing before buying new ones.
Any advice greatly appreciated.
This all stems from my previous post of everything on bank 1 not working.
I borrowed a Snap On OBD scanner from a great friend and it shows many codes including P0601, P0604 and P0606.