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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 >> Component Testing

Component Testing

WARNING: This page is about a different variant/trim than selected.
  1. Ignition OFF, disconnect the KR86 Transmission Fluid Pump Relay Auxiliary.
  2. Test for 85-130 between terminals 85 and 86.
    • If less than 85 or greater than 130Ω 

      Replace the relay.

    • If between 85130 
  3. Test for infinite resistance between the terminals listed below:
    • 30 and 86
    • 30 and 87
    • 30 and 85
    • 85 and 87
    • If less than infinite resistance 

      Replace the relay.

    • If infinite resistance 
  4. Install a 3A fused jumper wire between relay terminal 85 and 12 volts. Install a jumper wire between relay terminal 86 and ground.
  5. Test for less than 2 between terminals 30 and 87.
    • If 2 Ω or greater 

      Replace the relay.

    • If less than 2 Ω 
  6. All OK.
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