2025-10-03

Harness - Rear Subframe Harness (Model Y Standard) (Remove and Install)

Correction code NEW NOTE: Unless otherwise explicitly stated in the procedure, the above correction code and FRT reflect all of the work required to perform this procedure, including the linked procedures. Do not stack correction codes unless explicitly told to do so. NOTE: See Flat Rate Times to learn more about FRTs and how they are created. To provide feedback on FRT values, email ServiceManualFeedback@tesla.com. NOTE: See Personal Protection to make sure wearing proper PPE when performing the below procedure.NOTE: See Ergonomic Precautionsfor safe and healthy working practices.

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Warning
This procedure is a DRAFT. Although it has been validated, Warnings and Cautions might be missing. Follow safety requirements and use extreme caution when working on or near High Voltage systems and components.
  • 2025-10-01: Released new procedure.

Remove

  1. Raise and support vehicle
    Informational PurposesAn informational icon, calling your attention
    Note
    Ensure vehicle is not charging, Remove charging cable if it's plugged in
  2. Open LH front door
  3. Lower LH front window
  4. Open liftgate
  5. Open hood
  6. Power off vehicle from center display
    Informational PurposesAn informational icon, calling your attention
    Note
    Via Controls > Safety > Power Off, Select Power Off button at warning dialogue box
  7. Remove HEPA filter or big basin
    Informational PurposesAn informational icon, calling your attention
    Note
    Vehicle configuration may vary, W/ HEPA: 2x bolts, 10mm, 10 Nm, Pivot rear edge up past brake reservoir then lift up to clear frunk assembly, W/O HEPA: 2x bolts, 10mm, 10 Nm, 14x clips, Fold rear lip of base frunk forward to access forward cowl clips, Lift cowl clips to release basin bracket
  8. Disconnect LV battery and first responder loop
    Informational PurposesAn informational icon, calling your attention
    Note
    2x connectors, Release green locking tab, Press black tab then pull black connector lock outwards to release connection, Release red lock tab on FRL, Allow 2 minutes for all electrical circuits to fully discharge
  9. Remove rear load floor
  10. Remove front load floor
  11. Remove trunk sill trim from vehicle
    Informational PurposesAn informational icon, calling your attention
    Note
    4x clips, 2x loaction pins
  12. Remove LH load floor bracket
    Informational PurposesAn informational icon, calling your attention
    Note
    4x tabs, 2x clips, Clip position should not be adjusted after bracket is removed or will result in bracket not seating properly later
  13. Remove RH load floor bracket
    Informational PurposesAn informational icon, calling your attention
    Note
    4x tabs, 2x clips, Clip position should not be adjusted after bracket is removed or will result in bracket not seating properly later
  14. Remove trunk tub
    Informational PurposesAn informational icon, calling your attention
    Note
    2x push clips
  15. Remove bottom foam pad from lower trunk
  16. Remove rear center bolt from lower trunk assembly
    Informational PurposesAn informational icon, calling your attention
    Note
    1x bolt, 10mm, 10 Nm, Discard bolt after removal
  17. Remove lower trunk assembly from vehicle
    Informational PurposesAn informational icon, calling your attention
    Note
    4x bolts, 13mm, 24 Nm
  18. Remove LH rear wheel cap
    Informational PurposesAn informational icon, calling your attention
    Note
    1x cap, Use tool to gently pull center wheel cap to release clips, Wheels may be equipped with different caps
  19. Loosen LH rear wheel nuts
    Informational PurposesAn informational icon, calling your attention
    Note
    5x nuts, 21mm, 175 Nm
  20. Remove RH rear wheel cap
    Informational PurposesAn informational icon, calling your attention
    Note
    1x cap, Use tool to gently pull center wheel cap to release clips, Wheels may be equipped with different caps
  21. Loosen RH rear wheel nuts
    Informational PurposesAn informational icon, calling your attention
    Note
    5x nuts, 21mm, 175 Nm
  22. Raise vehicle partially and lower lift onto locks
    Informational PurposesAn informational icon, calling your attention
    Note
    Set vehicle to a comfortable working height, Make sure there's an audible click of the locks on both sides before lowering, otherwise vehicle may tilt to the side
  23. Remove LH rear wheel
    Informational PurposesAn informational icon, calling your attention
    Note
    5x nuts, 21mm, 175 Nm
  24. Remove RH rear wheel
    Informational PurposesAn informational icon, calling your attention
    Note
    5x nuts, 21mm, 175 Nm
  25. Disconnect LH rear wheel speed sensor
    Informational PurposesAn informational icon, calling your attention
    Note
    1x connector, Disengage locking tab, Use hands to hold the connector end on subframe harness, Release connector clip with pocket screwdriver
  26. Disconnect RH rear wheel speed sensor
    Informational PurposesAn informational icon, calling your attention
    Note
    1x connector, Disengage locking tab
  27. Raise vehicle fully and lower lift onto locks
    Informational PurposesAn informational icon, calling your attention
    Note
    Set vehicle to comfortable working height, Make sure there's an audible click of locks on both sides before lowering, Otherwise vehicle may tilt to side
  28. Remove LH and RH push clips securing mid aero shield to wheel house liner
    Informational PurposesAn informational icon, calling your attention
    Note
    2x clips
  29. Remove mid aero shield
    Informational PurposesAn informational icon, calling your attention
    Note
    11x bolts, 2x tabs, 10mm, 5 Nm
  30. Release rear fascia diffuser
    Informational PurposesAn informational icon, calling your attention
    Note
    7x bolts, 10mm, 5 Nm, 6x push clips, 2x fastener covers
  31. Remove LH and RH outer bolts securing rear diffuser to fascia
    Informational PurposesAn informational icon, calling your attention
    Note
    2x bolts, T30, 3 Nm
  32. Remove rear diffuser from rear lower fascia
    Informational PurposesAn informational icon, calling your attention
    Note
    9x tabs
  33. Disconnect RH side 12V subframe harness connector
    Informational PurposesAn informational icon, calling your attention
    Note
    1x connector, Release locking tab
  34. Remove RH side 12V subframe harness clip from body
    Informational PurposesAn informational icon, calling your attention
    Note
    1x clip
  35. Remove RH side 12V subframe harness clips from subframe
    Informational PurposesAn informational icon, calling your attention
    Note
    2x clips
  36. Release RDU logic connector
    Informational PurposesAn informational icon, calling your attention
    Note
    1x connector, Do not get coolant ingress into this connector, Move aside as needed
  37. Release RDU logic connector clip
    Informational PurposesAn informational icon, calling your attention
    Note
    1x clip
  38. Disconnect resolver connector from rear drive unit
    Informational PurposesAn informational icon, calling your attention
    Note
    1x connector, 2x clips
  39. Disconnect oil pump connector
    Informational PurposesAn informational icon, calling your attention
    Note
    1x connector, Do not push down on red tab, Pull red tab to disengage lock, Pull again to release connector
  40. Release clips securing subframe harness to top of rear subframe
    Informational PurposesAn informational icon, calling your attention
    Note
    4x clips
  41. Release clips securing subframe harness to left and right of subframe
    Informational PurposesAn informational icon, calling your attention
    Note
    2x clips, There is enough space to use the clip prytool to release the clips
  42. Remove harness from subframe assembly

Install

  1. Position harness onto subframe assembly
    Informational PurposesAn informational icon, calling your attention
    Note
    Pass the new harness through the gap between subframe and body, And fix the harness onto the subframe, Taking care not to damage the harness
  2. Install rear subframe harness into position and secure clips along left and right of subframe
    Informational PurposesAn informational icon, calling your attention
    Note
    2x clips
  3. Install clips securing subframe harness to top of rear subframe
    Informational PurposesAn informational icon, calling your attention
    Note
    4x clips
  4. Connect oil pump connector
    Informational PurposesAn informational icon, calling your attention
    Note
    1x connector
  5. Connect resolver connector to rear drive unit
    Informational PurposesAn informational icon, calling your attention
    Note
    1x connector, 2x clips
  6. Secure RDU logic connector clip
    Informational PurposesAn informational icon, calling your attention
    Note
    1x clip
  7. Secure RDU logic connector
    Informational PurposesAn informational icon, calling your attention
    Note
    1x connector, Verify there is no coolant ingress in connector
  8. Install RH side subframe harness clip to subframe
    Informational PurposesAn informational icon, calling your attention
    Note
    2x clips
  9. Install RH side 12V subframe harness clip to body
    Informational PurposesAn informational icon, calling your attention
    Note
    1x clip
  10. Connect RH side 12V subframe harness connector
    Informational PurposesAn informational icon, calling your attention
    Note
    1x connector, Engage locking tab
  11. Install rear diffuser to rear lower fascia
    Informational PurposesAn informational icon, calling your attention
    Note
    9x tabs
  12. Install LH and RH outer bolts securing rear diffuser to fascia
    Informational PurposesAn informational icon, calling your attention
    Note
    2x bolts, T30, 3 Nm
  13. Secure rear fascia diffuser
    Informational PurposesAn informational icon, calling your attention
    Note
    7x bolts, 10mm, 5 Nm, 6x push clips, 2x fastener covers, Apply Loctite 222 onto bolts
  14. Install mid aero shield
    Informational PurposesAn informational icon, calling your attention
    Note
    2x tabs, 11x bolts, 10mm, 5 Nm, Position rear datums first, Apply Loctite 222 onto rear aero shield bolts
  15. Install LH and RH push clips securing mid aero shield to wheel house liner
    Informational PurposesAn informational icon, calling your attention
    Note
    2x clips
  16. Lower vehicle partially and set onto locks
    Informational PurposesAn informational icon, calling your attention
    Note
    Raise lift off locks, then hold lock release lever to keep locks free while vehicle is lowered, Set vehicle to comfortable working height
  17. Connect LH rear wheel speed sensor to rear subframe harness
    Informational PurposesAn informational icon, calling your attention
    Note
    1x connector, Engage locking tab, Use hands to hold the connector end on subframe harness
  18. Connect RH rear wheel speed sensor to rear subframe harness
    Informational PurposesAn informational icon, calling your attention
    Note
    Engage locking tab, Use hands to hold the connector end on subframe harness
  19. Install LH rear wheel
    Informational PurposesAn informational icon, calling your attention
    Note
    5x nuts, 21mm, 175 Nm, Start lug nuts by hand before using power tool
  20. Install RH rear wheel
    Informational PurposesAn informational icon, calling your attention
    Note
    5x nuts, 21mm, 175 Nm, Start lug nuts by hand before using power tool
  21. Lower vehicle until tires are touching ground
    Informational PurposesAn informational icon, calling your attention
    Note
    Raise lift off locks, then hold lock release lever to keep locks free while vehicle is lowered
  22. Torque LH rear wheel nuts
    Informational PurposesAn informational icon, calling your attention
    Note
    5x nuts, 21mm, 175 Nm
  23. Install LH rear wheel cap
    Informational PurposesAn informational icon, calling your attention
    Note
    1x cap, Align valve stem with wheel cap cavity, Wheels may be equipped with different caps
  24. Torque RH rear wheel nuts
    Informational PurposesAn informational icon, calling your attention
    Note
    5x nuts, 21mm, 175 Nm
  25. Install RH rear wheel cap
    Informational PurposesAn informational icon, calling your attention
    Note
    1x cap, Align valve stem with wheel cap cavity, Wheels may be equipped with different caps
  26. Lower vehicle fully
    Informational PurposesAn informational icon, calling your attention
    Note
    Raise lift off locks, Then hold lock release lever to keep locks free while vehicle is lowered
  27. Install lower trunk assembly onto vehicle
    Informational PurposesAn informational icon, calling your attention
    Note
    4x bolts, 13mm, 24 Nm
  28. Install rear center bolt onto lower trunk assembly
    Informational PurposesAn informational icon, calling your attention
    Note
    1x bolt, 10mm, 10 Nm, Install new bolt with seal
  29. Install bottom foam pad to lower trunk
  30. Install trunk tub
    Informational PurposesAn informational icon, calling your attention
    Note
    2x push clips
  31. Install LH load floor bracket
    Informational PurposesAn informational icon, calling your attention
    Note
    4x tabs, 2x clips, Confirm each installation with push-pull test, Clip position should not be adjusted after bracket is removed or will result in bracket not seating properly, If clip position is changed or push-pull action shows bracket not secure, Remove clip from tab and seat clip into doghouse on bracket and reinstall
  32. Install RH load floor bracket
    Informational PurposesAn informational icon, calling your attention
    Note
    4x tabs, 2x clips, Confirm each installation with push-pull test, Clip position should not be adjusted after bracket is removed or will result in bracket not seating properly, If clip position is changed or push-pull action shows bracket not secure, Remove clip from tab and seat clip into doghouse on bracket and reinstall
  33. Install trunk sill trim onto vehicle
    Informational PurposesAn informational icon, calling your attention
    Note
    4x clips, 2x location pins, Seat seal around edge of trim
  34. Install front load floor
  35. Install rear load floor
  36. Connect first responder loop and LV battery
    Informational PurposesAn informational icon, calling your attention
    Note
    2x connectors, Secure FRL first, Seat LV battery connection and push black connector lock inwards to secure, Engage green locking tab when fully seated
  37. Install HEPA filter or big basin
    Informational PurposesAn informational icon, calling your attention
    Note
    Vehicle configuration may vary, W/ HEPA: 2x bolts, 10mm, 10 Nm, Pivot forward edge down past frunk assembly, Then carefully move rear edge past brake reservoir and into position, Gently press on RH side of filter to seat seal onto duct, W/O HEPA: 2x bolts, 10mm, 10 Nm, 14x clips, Secure basin fasteners then install basin cowl, Fold rear flap of base frunk back to access front row of clips to cowl, Replace any missing or damaged clips, Do not pinch washer line in between big basin and body
  38. Close hood
  39. Close liftgate
  40. Raise LH front window
  41. Close LH front door
  42. Remove vehicle from lift
    Informational PurposesAn informational icon, calling your attention
    Note
    Lower rack arms fully and remove from under vehicle