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International Automotive Technicians Network
Re: Chevy ABS Code C1278
Posted to Technical Theory Forum on 11/22/2005 1 Reply

From AD

There is no problem in the TCS or ABS

There is a problem in the ENGINE control part of the TC system.

The PCM notifies the EBCM which sets the code

The TCS OFF light is on

The ABS remains functional

In short the PCM believes there is an ENG... Login to read more.

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