Diagnostic Aids

WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The engine harness connector for the ATFP control module and the mating connector for the transmission auxiliary pump motor can be improperly connected to each other. All of the following conditions may be observed if the improper connectors are mated together:

DTC P0C2B
The TRANS PUMP 60A fuse will open
BCM DTC B1433
Air conditioning system does not blow cold air