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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Hybrid/EV Control System) >> Diagnostic Information and Procedures >> DTC P2797: Auxiliary Transmission Fluid Pump Performance >> Diagnostic Aids

Diagnostic Aids

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Driving a vehicle with an auxiliary transmission fluid pump failure that causes low or no pressure will cause a harsh transmission engagement on vehicle launch from an autostop.

Transmission Fluid Pump Relay Underhood Electrical Center Terminal Identification
Front of Vehicle
Left Side of Vehicle Control Load Right Side of Vehicle
B+ Ignition