LEMON Manuals: Even more car manuals for everyone
Home >> Cadillac >> 2021 >> XT5 Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 823 (Transfer Case - Mp 3023/3024 (NQH) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC C11B3 or C15A9 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition - On/Vehicle - In Service Mode
  2. Transfer Case Select Switch = 2WD
  3. Ignition/Vehicle - Off
  4. Remove the component: B139 Transfer Case 2WD/4WD Actuator Position Sensor
  5. Verify a condition does not exist with the component: B139 Transfer Case 2WD/4WD Actuator Position Sensor - Clean and inspect all mating surfaces.
    • If a condition exists 

      Replace the component: B139 Transfer Case 2WD/4WD Actuator Position Sensor

    • Go to next step: If no condition exists 
  6. Rotate the component: B139 Transfer Case 2WD/4WD Actuator Position Sensor - Position 2WD
  7. Connect the component: B139 Transfer Case 2WD/4WD Actuator Position Sensor
  8. Ignition - On/Vehicle - In Service Mode
  9. Verify the scan tool parameter: Transfer Case Range Position Sensor = -10 to 25°
    • If not the specified state 

      Replace the component: B139 Transfer Case 2WD/4WD Actuator Position Sensor

    • Go to next step: If the specified state 
  10. Rotate the component: B139 Transfer Case 2WD/4WD Actuator Position Sensor - Position 4WD LOW
  11. Verify the scan tool parameter: Transfer Case Range Position Sensor = -48 to -175°
    • If not the specified state 

      Replace the component: B139 Transfer Case 2WD/4WD Actuator Position Sensor

    • Go to next step: If the specified state 
  12. Rotate the component: Transfer Case Control Actuator Shaft

    Verify a condition does not exist with the component: Transfer Case Control Actuator Shaft - Rotate(s)

    • Go to next step: If no condition exists 
  13. Ignition/Vehicle - Off
  14. Install the component: B139 Transfer Case 2WD/4WD Actuator Position Sensor
  15. Mark the installation position. - A16 Transfer Case Motor
  16. Remove the component: A16 Transfer Case Motor
  17. Ignition - On/Vehicle - In Service Mode
  18. Perform each scan tool control function: Range Actuator - Clockwise
  19. Verify the scan tool parameter: Range Actuator Position Sensor = 25 to 175°
    • If not the specified state 

      Replace the component: A16 Transfer Case Motor

    • Go to next step: If the specified state 
  20. Perform each scan tool control function: Range Actuator - Counterclockwise
  21. Verify the scan tool parameter: Range Actuator Position Sensor = -48 to -175°
    • If not the specified state 

      Replace the component: A16 Transfer Case Motor

    • Go to next step: If the specified state 
  22. Ignition/Vehicle - Off
  23. Install the component: A16 Transfer Case Motor
  24. Ignition - On/Vehicle - In Service Mode
  25. Perform the scan tool configuration/reset function: Range Actuator Learn
  26. Wait 10 s before proceeding to the next step.
  27. Perform the scan tool control function: Transfer Case Range - 4WD Low
  28. Wait 10 s before proceeding to the next step.
  29. Ignition/Vehicle - Off
  30. Wait 30 s before proceeding to the next step.
  31. Ignition - On/Vehicle - In Service Mode
  32. Verify DTC C11B3, C15A9 is not set.
    • If the DTC is set 

      Replace the component: K69 Transfer Case Control Module

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