On my 2006 cts 3.6l v6 RWD 186,327km Someone had a command start in the car and ripped it out before selling it. Made a mess of the wiring and I’ve cut out all the extra wires hanging around and have one wire left that I can not figure out where it goes.
On the ignition switch I have a green and a tan wire the green runs into the main harness under the steering column and the tan one is just hanging disconnected. It had been tied into the ground previously but I removed it from there.
I am getting security theft light staying on solid I can erase the code but it comes back shortly after, also. Have to temp or fuel gauge.
Codes showing on my Autel MX900
Powertrain
U1300
P0453
P1629
Vehicle theft/security
U1000
DRP/ABS/TCS/VSES
C0278
U1000
VARIABLE STEERING
C0278
U1000
INSTRUMENT CLUSTER
U1000
DASH INTERGRATION MODULE
U1000
B1004
VEHICLE COMMUNICATION INTERFACE
U1000
On the ignition switch I have a green and a tan wire the green runs into the main harness under the steering column and the tan one is just hanging disconnected. It had been tied into the ground previously but I removed it from there.
I am getting security theft light staying on solid I can erase the code but it comes back shortly after, also. Have to temp or fuel gauge.
Codes showing on my Autel MX900
Powertrain
U1300
P0453
P1629
Vehicle theft/security
U1000
DRP/ABS/TCS/VSES
C0278
U1000
VARIABLE STEERING
C0278
U1000
INSTRUMENT CLUSTER
U1000
DASH INTERGRATION MODULE
U1000
B1004
VEHICLE COMMUNICATION INTERFACE
U1000
May 28, 2026 at 1:15 AM