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Home >> Cadillac >> 2017 >> XTS Base >> Repair and Diagnosis >> Drivelines & Axles >> Differentials & Drive Axles >> Rear Drive Axle >> Repair Instructions >> Rear Differential Clutch Control Module Replacement >> Removal Procedure

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
  2. Deflate the suspension air bags. Refer to Air Suspension System Depressurization and Pressurization
    3. Fig 1: Rear Wheelhouse Liner & Mounting Components
    GM2758929Courtesy of GENERAL MOTORS COMPANY
  3. Remove the rear wheelhouse liner (4). Refer to Rear Wheelhouse Liner Replacement
    4. Fig 2: ABS Sensor And Control Module Electrical Connectors
    GM4582722Courtesy of GENERAL MOTORS COMPANY
  4. Disconnect the ABS sensor and control module electrical connectors (1) from the body side wiring harness (2).
  5. If equipped with integrated braking assist, disconnect the electrical connector (3).
  6. Separate the wiring harness from the body.
    7. Fig 3: Electrical Connectors & Retainer
    GM2845430Courtesy of GENERAL MOTORS COMPANY
  7. Disconnect the strut electrical connector (2) and separate the wiring harness from the body.
    8. Fig 4: Brake Caliper Bracket Bolts
    GM2555446Courtesy of GENERAL MOTORS COMPANY
  8. Remove the bolts (1) that secure the brake caliper to the caliper bracket.
  9. Secure the brake caliper to the body using mechanics wire or equivalent.
    10. Fig 5: Rear Wheel Speed Sensor
    GM2753957Courtesy of GENERAL MOTORS COMPANY
  10. Remove the ABS sensor (1).
  11. Separate the ABS wiring harness from the upper control arm.
    12. Fig 6: Air Suspension Compressor Electrical Connector
    GM2760412Courtesy of GENERAL MOTORS COMPANY
  12. Disconnect the air ride pump electrical connector (1).
    13. Fig 7: Rear Cradle Assembly And Jack Stand
    GM2845507Courtesy of GENERAL MOTORS COMPANY
  13. Support the rear cradle assembly with a support stand (1) or equivalent.
    14. Fig 8: Left Side Cradle Reinforcement Bracket Bolts
    GM2842099Courtesy of GENERAL MOTORS COMPANY
  14. Remove the two left side cradle reinforcement bracket bolts (4).
    15. Fig 9: Left Side Cradle Bolts, Support Reinforcement And Hydraulic Jack
    GM2842755Courtesy of GENERAL MOTORS COMPANY
  15. Remove the two left side cradle bolts (2) and the support reinforcement (3).

    Remove the remaining left side rear cradle bolt.

    16. Fig 10: Upper Strut Bolts
    GM2845547Courtesy of GENERAL MOTORS COMPANY
  16. Remove the two upper strut bolts (1).
    17. Fig 11: Electronic Suspension Rear Position Sensor Components
    GM2851833Courtesy of GENERAL MOTORS COMPANY
  17. Disconnect the ride height sensor electrical connector (3).
    18. Fig 12: Rear Differential Clutch Control Module And Screws
    GM4583061Courtesy of GENERAL MOTORS COMPANY
    WARNING:

    The hydraulic pressure in the differential clutch is very high. To prevent personal injury, wait for at least 10 minutes before removing any parts from the differential clutch.

  18. Using care, lower the cradle assembly so that only the left side is lowered enough to gain access to remove the rear differential clutch control module screws (1).
  19. Remove the rear differential clutch control module screws (1) and the rear differential clutch control module.
    20. Fig 13: Rear Differential Clutch Control Module Components
    GM4583060Courtesy of GENERAL MOTORS COMPANY
  20. Disconnect the module electrical connectors.
  21. Remove the wiring harness from the suspension cradle.
  22. Remove and discard the module to differential seal (3).
  23. Using care, remove the solenoid (2) and seal (1).
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