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Home >> Cadillac >> 2017 >> Escalade ESV Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Automatic Transmission - 6L80 (MYC) Or 6L90 (MYD) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0776 or P0777: Pressure Control Solenoid Valve 2 - Stuck Off/On >> Circuit/System Verification

Circuit/System Verification

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    NOTE:

    If other DTCs are set, diagnose those DTCs first.

  1. Engine idling in Park position, with parking brake applied and drive wheels chocked.
  2. Verify the transmission fluid level and condition is correct. Refer to Transmission Fluid Level and Condition Check .
    • If the transmission fluid level and condition is not correct 

      Repair as necessary.

    • If the transmission fluid level and condition is correct 
  3. Ignition ON, clear the Transmission Control Module DTCs with a scan tool.
  4. Verify the transmission operation performs as indicated in the road test instructions and DTCs P0776 or P0777 did not set. Refer to Road Test .
    • If DTCs P0776 or P0777 are set 

      Refer to Circuit/System Testing.

    • If DTCs P0776 or P0777 did not set 
  5. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observe from the Freeze Frame/Failure Records data.
  6. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing.

    • If the DTC does not set 
  7. All OK.
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