Diagnostic Aids

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

This DTC indicates the on-coming clutch being controlled by the solenoid "A" is not applied or applied too slowly. This could indicate a leak or obstruction in a specific clutch apply circuit. Check scan tool failure record data for previous or current range information when the DTC was set to determine specific shift when the DTC was set. Refer to appropriate solenoid and clutch chart to determine which clutch circuit is suspect. See CLUTCH & SOLENOID APPLICATIONS under TROUBLE SHOOTING.

Clutch failure due to installation of an engine power upgrade is not covered under the manufacturer's warranty. Inspect for the presence of an add-on engine power package. When engine horsepower or torque is increased over factory rating, a shift flare condition may occur.