Diagnostic Fault Information

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

The following fault table will help determine if a hydraulic circuit or an incorrect position of a valve train component affects the transmission operation.

Component	Cause	DTCs
Automatic Transmission Fluid Pump Cover Assembly	TCC control valve stuck in fluid pump cover assembly	P1751
Control Solenoid (w/body and TCM) Valve Assembly	Shift Solenoid 1: Always exhausting - Stuck On Not exhausting - Stuck Off Needle piston or armature pin binding Control signal fluid supply leak - valve body filter plate assembly cracked or damaged gasket seal Control valve body spacer plate assembly number 4 ball check valve orifice damaged or burred	P1751