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Home >> Cadillac >> 2019 >> XTS Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 42 (Rear Drive Axle) >> Repair Instructions >> Rear Differential Clutch Control Module Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2018 Cadillac XTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Fig 1: Exploded View Of Rear Differential Clutch Control Module Components
    GM4583060Courtesy of GENERAL MOTORS COMPANY

    Lubricate the seal and O-rings on the solenoid.

    2. NOTE:

    When installing the solenoid into the differential, the electrical connector should be aiming downwards at the 6 O'clock position in order to align the rear differential clutch control module properly.

  2. Install a new solenoid (2) with the NEW seal (1).
  3. Install a new module to differential seal (3).
  4. Install the new module, make sure to align the new module to the actuator solenoid connector.
  5. Connect both wiring harness connectors to the module.
  6. GM4583061Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

    Install the screws and tighten to 6 N.m (53 lb in)

  7. Route and position the wiring harness through the suspension cradle.
  8. Connect the ride height sensor electrical connector.
  9. Install the wiring harness to the suspension assembly.
  10. Using care, raise the suspension cradle into position.
  11. Install the rear cradle bolt hand tight.
  12. Position the front cradle reinforcement bracket and install the front cradle support bracket bolts hand tight.
  13. Torque the front cradle bolt and rear cradle bolts to:
    • First Pass: 90 N.m (66 lb ft)
    • Second Pass: plus 180 degrees
    • Final Pass: plus 15 degrees
  14. Torque the front cradle reinforcement bracket bolts to:
    • First Pass: 150 N.m (111 lb ft)
    • Second Pass: plus 30 degrees
    • Final Pass: plus 15 degrees
  15. Route the air bag pump electrical connector between the cradle and sway bar and connect.
  16. Install the ABS sensor.
  17. Using a support stand or equivalent, compress the suspension to align the strut to the body. Tighten the bolts to 100 N.m (74 lb ft).
  18. Connect the strut electrical connector.
    19. NOTE:

    When re-installing the brake caliper, it may be required to compress the caliper by turning the parking brake cable adjustment screw clockwise  at the electric parking brake control module.

  19. Install the brake caliper.
  20. Connect the ABS sensor, control module and, if equipped, integrated braking assist electrical connectors to the body side wiring harness.
  21. Install the rear wheelhouse liner. Rear Wheelhouse Liner Replacement
  22. Lower the vehicle.
  23. Re-inflate the suspension air bags. Air Suspension System Depressurization and Pressurization
  24. Program the rear differential clutch control module. Refer to Control Module References .
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