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Home >> GMC >> 2022 >> Terrain AT4 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 9T45 (M3U) Or 9T50 (M3D M3H) - Diagnostic Information And Procedures (1 Of 2) >> Diagnostic Information and Procedures >> DTC P0707, P0708, P2802, P2803, or P2805 >> Circuit/System Verification

Circuit/System Verification

  1. Ignition - On / Vehicle - In Service Mode
    2. NOTE:

    This step only applies to the following component DTCs:B303 Transmission Range Sensor

  2. Verify DTC P2805 is not set and no other DTCs are set.
    • If DTC P2805 is set and no other DTCs are set 

      Replace the component:B303 Transmission Range Sensor

    • Go to next step: If DTC P2805 is set and other DTCs are set 
  3. Verify DTC P0641, P0651, P0697, P06A3 is not set.
    • Go to next step: If no DTC is set 
  4. Verify the condition does not exist:Incorrect adjustment - Refer to:Range Selector Lever Cable Adjustment
    • If a condition exists 

      Repair or replace as necessary

    • Go to next step: If no condition exists 
  5. Operate the component:S3 Transmission Shift Lever - Select each position

    Verify the scan tool parameter:Transmission Range Sensor 1, 2=The value should be within the range listed in the table:Transmission Range Sensor Duty Cycles

    • If not in the specified range 

      Refer to: Circuit/System Testing

    • Go to next step: If in the specified range 
  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.
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