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Home >> GMC >> 2024 >> Terrain SLT, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (Automatic Transmission - 6T40 (MNH) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0741 or P0742 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2024 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify the condition does not exist: Incorrect fluid level or condition - Refer to: Transmission Fluid Level and Condition Check 
    • If a condition exists 

      Repair or replace as necessary

    • Go to next step: If no condition exists 
  2. Ignition - On / Vehicle - In Service Mode
  3. Clear the DTCs.
  4. Road test the vehicle. - Refer to: Road Test 

    Verify DTC P0716, P0717, P0722, P0723 is not set.

    • Go to next step: If none of the DTCs are set 
  5. Verify that no DTC listed in the DTC Descriptor Category is set.
    • If any DTC listed in the DTC Descriptor Category is set 

      Refer to: Circuit/System Testing

    • Go to next step: If none of the DTCs listed in the DTC Descriptor Category is set 
  6. 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.

    Verify the DTC does not set.

    • If the DTC sets 

      Refer to: Circuit/System Testing

    • Go to next step: If the DTC is not set 
  7. All OK.