LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Automatic Transmission - 6T50 (M2D) - Diagnostic Information And Procedures) >> Diagnostic Information And Procedures >> DTC P0751 Or P0752: Shift Solenoid Valve 1 Performance - Stuck Off/On - Transmission Hydraulic/Mechanical Performance >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
    NOTE:

    If other DTCs are set, diagnose those DTCs first.

  1. Ignition ON, engine OFF.
  2. Verify no other TCM DTCs are set using a scan tool.
    • Go to next step: If no other DTCs are set 
  3. Engine idling at the normal operating temperature, transmission in Park, with parking brake applied and drive wheels chocked.
  4. 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.

    • Go to next step: If the transmission fluid level and condition is correct 
  5. Ignition ON, clear the TCM DTCs with a scan tool.
  6. From a stop, accelerate to 72 km/h (45 mph) with the Calculated Throttle Position greater than 15%. Perform this test 8 times.
  7. Verify DTC P0751 or P0752 did not set.
    • If DTC P0751 or P0752 sets 

      Refer to Circuit/System Testing.

    • Go to next step: If DTC P0751 or P0752 does not set 
  8. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
  9. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing.

    • Go to next step: If the DTC does not set 
  10. All OK.
scientia non olet · About LEMON Manuals