REAR DIFFERENTIAL CARRIER ASSEMBLY REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during the torque vectoring differential FDU (Final Drive Unit) removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced
Replacement Part or Procedure Necessary Procedure Effect/Inoperative when not Performed Link
Disconnect cable from negative battery terminal Memorize steering angle neutral point Parking assist monitor system

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Lane departure alert system (w/ Steering Control)

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Pre-crash safety system
Adaptive high beam system
Reset power trunk lid Power trunk lid system

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Removal/installation of torque transfer module motor sub-assembly Motor exchange learning Torque vectoring differential system

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Replacement of torque vectoring differential FDU (Final Drive Unit) ASSY exchange learning
Removal/installation of rear disc Parking brake bedding Electric parking brake system

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Rear wheel alignment adjustment

  1. Clear zero point calibration data and system information

  2. Perform yaw rate and acceleration sensor and roll rate and vertical acceleration sensor zero point calibration and store system information

  • VSC disabled or malfunctioning

  • DTCs are output

  • Slip indicator light illuminated

  • ABS warning light illuminated

  • Theft deterrent system (Tilt sensor)

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Removal/installation of rear height control sensor sub-assembly Perform headlight control computer assembly LH initialization Headlight leveling function

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PROCEDURE


  1. PRECAUTION

    Note

    After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

    Click here

  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

    Click here

    Note

    When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

    Click here

  3. DRAIN TORQUE TRANSFER MODULE FLUID

    Click here

  4. DRAIN DIFFERENTIAL OIL

    Click here

  5. REMOVE LUGGAGE COMPARTMENT FLOOR MAT (w/o Spare Tire)

    Click here

  6. REMOVE LUGGAGE COMPARTMENT FLOOR MAT (w/ Spare Tire)

    Click here

  7. REMOVE LUGGAGE COMPARTMENT TRIM BOX (w/o Spare Tire)

    Click here

  8. REMOVE SPARE WHEEL COVER TRAY (w/o Spare Tire)

    Click here

  9. REMOVE SPARE WHEEL COVER TRAY (w/ Spare Tire)

    Click here

  10. REMOVE SPARE TIRE (w/ Spare Tire)

  11. REMOVE NO. 1 FLOOR UNDER COVER ASSEMBLY

    Click here

  12. REMOVE ECU BRACKET (w/ Spare Tire)

    Click here

  13. DISCONNECT NO. 4 FLOOR WIRE


    1. Disconnect the connector (A).

      B002D9AC01
      *a Connector (A) *b Connector (B)
      *c Lock - -

    2. Using a screwdriver, release the 2 locks and disconnect the 2 connectors (B) as shown in the illustration.

      Tech Tips

      When disconnecting the connector with lock lever, pull out the lock of the lock lever, disengage the claw and turn the lock lever to disconnect the connector as shown in the illustration.

    3. Disengage the clamp.

    4. B002EW3C01
      B002DP3 Grommet
      B002CU5 Nut

      Disengage the grommet.

    5. Disengage the clamp.

    6. Remove the nut and disconnect the No. 4 floor wire.

    7. Pass the No. 4 floor wire through the grommet hole to the outside of the vehicle.

      Tech Tips

      Use wire or an equivalent tool to keep the No. 4 floor wire from hanging from the vehicle body.

  14. REMOVE REAR SUSPENSION MEMBER SUB-ASSEMBLY

    Click here

  15. REMOVE NO. 4 FLOOR WIRE


    1. Remove the 6 bolts.

      B002CT6C01
      *a Connector (A) *b Connector (B)
      *c Lock - -

    2. Disengage the 2 clamps.

    3. Disconnect the 2 connectors (A).

    4. Using a screwdriver, release the 2 locks and disconnect the 2 connectors (B) as shown in the illustration to remove the No. 4 floor wire.

      Tech Tips

      When disconnecting the connector with lock lever, pull out the lock of the lock lever, disengage the claw and turn the lock lever to disconnect the connector as shown in the illustration.

  16. REMOVE REAR SUSPENSION ARM BRACKET ASSEMBLY

    Click here

  17. REMOVE TORQUE VECTORING DIFFERENTIAL FDU (FINAL DRIVE UNIT)

    Note


    • Do not damage the installation surface when removing the torque vectoring differential FDU (Final Drive Unit).

    • The remaining oil may leak out when removing the torque vectoring differential FDU (Final Drive Unit).

    • Securely support the torque vectoring differential FDU (Final Drive Unit) while performing this step to avoid excessively tilting or dropping the torque vectoring differential FDU (Final Drive Unit).

    • Remove the bolts with the torque vectoring differential FDU (Final Drive Unit) secured.


    1. B002ENVC01
      *a Attachment

      Support the torque vectoring differential FDU (Final Drive Unit) with 4 attachments or equivalent tools as shown in the illustration.

      CAUTION:

      B002EDB

      • The torque vectoring differential FDU (Final Drive Unit) is a heavy component. Make sure that it is supported securely.

      • If the torque vectoring differential FDU (Final Drive Unit) is not securely supported, it may drop, resulting in serious injury.

      Note

      Use attachments or equivalent tools to keep the torque vectoring differential FDU (Final Drive Unit) level.

    2. B002DT4

      Using a 12 mm hexagon socket wrench, remove the 3 bolts.

    3. B002DBZ

      Remove the 2 bolts and 2 rear lower differential mount stoppers.

    4. Remove the rear suspension member sub-assembly from the torque vectoring differential FDU (Final Drive Unit).

    5. B002DRO

      Remove the 2 rear upper differential mount stoppers.

  18. REMOVE REAR DIFFERENTIAL FILLER PLUG (for Upper Side)


    1. B002COJ

      Using an 8 mm hexagon socket wrench, remove the 3 rear differential filler plugs from the torque vectoring differential FDU (Final Drive Unit).

  19. REMOVE REAR DIFFERENTIAL BREATHER PLUG


    1. B002EMH

      Remove the rear differential breather plug from the rear differential carrier.

      Tech Tips

      Use the same procedure for the other side.

    2. B002CUV

      Remove the rear differential breather plug from the rear differential carrier cover.

  20. REMOVE REAR DIFFERENTIAL CARRIER COVER


    1. B002DGU

      Remove the 8 bolts.

    2. B002DA5

      Using a brass bar and a hammer, remove the rear differential carrier cover from the rear differential carrier.

      Note


      • Place the brass bar onto the corners of the rear differential carrier cover.

      • Do not damage the contact surface.

  21. INSPECT RUNOUT OF DIFFERENTIAL RING GEAR


    1. B002DHZ

      Set a dial indicator perpendicular to the end of the differential ring gear face.

    2. Rotate the differential ring gear and measure the runout.

      Maximum Runout
      0.05 mm (0.00197 in.)

      If the runout is more than the maximum, replace the torque vectoring differential FDU (Final Drive Unit).

  22. INSPECT DIFFERENTIAL RING GEAR BACKLASH


    1. B002EKR

      While holding the rear drive pinion companion flange, rotate the differential ring gear and measure the ring gear backlash.

      Standard Backlash
      0.08 to 0.13 mm (0.00315 to 0.00511 in.)

      If the ring gear backlash is not within the specified range, replace the torque vectoring differential FDU (Final Drive Unit).

  23. INSPECT TOOTH CONTACT BETWEEN RING GEAR AND DRIVE PINION


    1. B002CAV

      Coat 3 or 4 teeth at 3 different positions on the differential ring gear with Prussian blue.

    2. Rotate the differential ring gear in both directions.

    3. Inspect the tooth contact pattern.

      B002EOAC01
      *a Proper Contact *b Heel Contact
      *c Face Contact *d Toe Contact
      *e Flank Contact - -

      Note

      Check the tooth contact pattern at 4 or more positions around circumference of the differential ring gear.

      If the teeth are not contacting properly, replace the torque vectoring differential FDU (Final Drive Unit).

  24. INSPECT DIFFERENTIAL SIDE GEAR BACKLASH


    1. B002DZX

      Place a dial indicator on the tip of a side gear tooth at a right angle. Hold the pinion gear in the rear differential case sub-assembly and check that the backlash is 0 mm (0 in.).

      If the result is not as specified, replace the torque vectoring differential FDU (Final Drive Unit).

  25. INSPECT RUNOUT OF DIFFERENTIAL DRIVE PINION


    1. B002EOCC01
      *a 10 mm (0.394 in.)

      Using a dial indicator, measure the runout of the differential drive pinion at a position 10 mm (0.394 in.) away from the end of the differential drive pinion.

      Maximum Runout
      0.08 mm (0.00315 in.)

      If the runout is more than the maximum, replace the torque vectoring differential FDU (Final Drive Unit).

  26. INSPECT TOTAL PRELOAD


    1. Turn the bearing clockwise and counterclockwise several times to stabilize it.

    2. B002E8CN01

      Using SST and a torque wrench, turn the differential drive pinion continuously at a rate of 1 second per turn and measure the total preload.

      SST
      09229-55010
      Standard Total Preload
      4.38 N*m (45 kgf*cm, 39 in.*lbf) or less

      If the total preload is not within the specified range, replace the torque vectoring differential FDU (Final Drive Unit).

  27. REMOVE REAR DRIVE SHAFT OIL SEAL LH


    1. B002CKYC01
      *1 Rear Drive Shaft Oil Seal LH

      Using SST, remove the rear drive shaft oil seal LH.

      SST
      09308-00010

  28. REMOVE REAR DRIVE SHAFT OIL SEAL RH

    Tech Tips

    Use the same procedure as for the LH side.

  29. REMOVE TORQUE TRANSFER MODULE MOTOR SUB-ASSEMBLY (for LH Side)


    1. B002EZ4

      Disconnect the connector.

    2. B002E5C

      Disengage the claw and separate the connector.

    3. Remove the 2 bolts and torque transfer module motor sub-assembly.

    4. B002EPMC01
      *a Protective Tape

      Using a screwdriver with its tip wrapped with protective tape, remove the O-ring.

      Note

      Do not damage the torque transfer module motor sub-assembly installation surface.

  30. REMOVE TORQUE TRANSFER MODULE MOTOR SUB-ASSEMBLY (for RH Side)

    Tech Tips

    Use the same procedure as for the LH side.

  31. REMOVE TEMPERATURE SENSOR (for LH Side)


    1. B002ECP

      Using a 22 mm deep socket wrench, remove the temperature sensor and gasket.

  32. REMOVE TEMPERATURE SENSOR (for RH Side)

    Tech Tips

    Use the same procedure as for the LH side.