2006 uplander code c1100

[mike7051]

so my wifes traction control/stability control light comes on scan it get a code c1100 abs brake switch circuit failure i replaced the ebcm and same code seems to come on under accel rather than braking any ideas

[gmtech1]

Originally Posted by mike7051

so my wifes traction control/stability control light comes on scan it get a code c1100 abs brake switch circuit failure i replaced the ebcm and same code seems to come on under accel rather than braking any ideas

It's a pretty simple circut. If you replaced the EBCM with a new one (not used) and the light still comes on, then the problem is in the BPMV. The brake pressure sensor is part of the BPMV and plugs into the EBCM when the two are bolted together. The reason I say new EBCM is that iif it's used, you don't know if it had a problem to begin with.

[mike7051]

Thanks for the input it was new I was hoping it wasn't the bpmv I didn't want to have to bleed the brakes

[gmtech1]

Originally Posted by mike7051

Thanks for the input it was new I was hoping it wasn't the bpmv I didn't want to have to bleed the brakes

Every BPMV I've done on an Uplander I've been able to just bleed the lines at the BPMV after replacement.