07/08/2024 01:19:51

High Voltage Battery Assembly - Front Skid Plate Bracket (Remove and Replace)

Correction code 1601010302 FRT 4.92 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 LaborTimeFeedback@tesla.com. NOTE: See Personal Protection to make sure wearing proper PPE when performing the below procedure.

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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. Provide corrections and feedback to ServiceDevelopment@teslamotors.com.
  1. Open all four doors
  2. Lower all four windows
  3. Raise and support vehicle
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    Note
    Ensure vehicle is not charging
  4. Place vehicle in service mode plus
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    Note
    Using Vehicle Ops mobile app enter last six digits of VIN then select vehicle from list then swipe to the left and select "Enable Service Mode Plus"Vehicle Ops mobile app can be downloaded at: https://mobile.tesla.com/AppStore/Home/AppDetails?appId=6
  5. Unlock vehicle gateway
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    Note
    After vehicle has been put into "Service Mode", place keycard on center console to turn on drive rails, hold down the brake pedal, while keep pressing right hand signal button simultaneously for at least 10 seconds, "GTW UNLOCKING" should pop up on the UI right next to the VIN during these 10 seconds, once gateway is unlocked "GTW UNLOCKED 5400" will be displayed on the UI next to the VIN, the gateway will remain unlocked for 90 minutes, follow steps on Toolbox article #5582900 for any additional information
  6. Run Thermal Fill Drain (Coolant Only) through the UI
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    Note
    Select Thermal > Coolant System > Coolant Fill/Drain, click Run, close once routine is completed, Thermal Fill Drain routine has 50 minutes time limit, After 50 minutes routine must be performed again
  7. Move LH front seat forward
  8. Move RH front seat forward
  9. Open hood
  10. Remove rear underhood apron
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    Note
    14x clips
  11. Power off vehicle from center display
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    Note
    Via Controls > Safety > Power Off, Select Power Off button at warning dialogue box
  12. Disconnect LV battery and First Responder Loop
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    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
  13. Release 2nd row seat cushion and disconnect harness
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    Note
    2x clips, 2x connectors, Press tabs backward then pull front edge up
  14. Remove all items from pockets and ensure not wearing metal items
  15. Inspect HV insulating gloves
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    Note
    Check gloves for damage prior to use, Refer to service document TN-15-92-003, for information on inspecting HV gloves. https://service.teslamotors.com/documents?model=&keys=TN-15-92-003&vehicle_system=&sort_by=field_date_submitted&sort_order=DESC
  16. Put on HV insulating gloves and leather over gloves
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    Note
    Make sure to wear Electrical Protective Gloves any time Hioki tester is used
  17. Remove bolts securing ancillary bay probe lid cover to ancillary bay cover
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    Note
    2x bolts, EP10 5-Lobe, 6 Nm, Discard after removal
  18. Remove ancillary bay probe lid cover from ancillary bay cover
  19. Verify no high voltage
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    Note
    Make sure to wear PPE (HV gloves, safety glasses) when working on high voltage component, Measure B+ to Ground, B- to Ground, B+ to B-, If voltage is greater than 10V, Pack contactors are not open or welded, Stop work and reach out to Service Engineering
  20. Inspect ancillary bay probe lid cover gasket then position onto ancillary bay cover
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    Note
    Confirm no visual damage present,Wipe ancillary bay with IPA to clean surface,Allow to 1 minute dry time
  21. Install bolts securing ancillary bay probe lid cover to ancillary bay cover
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    Note
    2x bolts, EP10 5-Lobe, 6 Nm, Install new fasteners
  22. Remove HV insulating gloves
  23. Raise vehicle fully and lower lift onto locks
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    Note
    Set vehicle to 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, Verify doors are clear of surrounding objects
  24. Remove bolts securing front aero shield
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    Note
    7x bolts, 10mm, 5 Nm
  25. Remove front aero shield from studs
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    Note
    2x nuts, 15mm, 5 Nm
  26. Remove both LH and RH bolts securing wheel liners to front skid plate
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    Note
    2x blots, 10mm, 5 Nm
  27. Remove front skid plate
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    Note
    4x bolts, EP10, 13 Nm, 2x tabs, Move foward to remove
  28. Position coolant drain container below HV battery hose
  29. Disconnect RH manifold tube from LH manifold tube
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    Note
    1x spring clip, 2x plugs, Plug both side hose end
  30. Remove coolant drain container from underneath vehicle
  31. Remove bolt securing FDU HV harness to FDU
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    Note
    1x bolt, 10mm, 10 Nm
  32. Disconnect FDU HV harness connector
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    Note
    1x clip, Release locking tab and rotate the release lever up to disengage the connector, Do not force the release lever up, Ensure the alignment tabs on the FDU header are not damaged
  33. Release HV connector mount bracket from stud on LH side of firewall
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    Note
    1x mount bracket
  34. Disconnect AC compressor HV harness connector
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    Note
    1x locking connector, 3 stage locking connectors, Disengage the red locking tab by pulling it away from the connector, depress yellow tab and pull the connector backward then depress the green tab to release
  35. Remove ancillary harness bracket from front of HV battery
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    Note
    2x barrel clips
  36. Remove rear aero shield clips
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    Note
    2x clips, One clip on LH side wheel liner, One clip on RH side wheel liner
  37. Remove rear aero shield
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    Note
    11x bolts, 10mm, 5 Nm
  38. Release LH side hose clip from rear battery skid plate enclosure
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    Note
    1x fir tree clip
  39. Release RH side hose clips from rear battery skid plate enclosure
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    Note
    2x fir tree clips
  40. Remove lower bolts securing HV battery rear skid plate enclosure
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    Note
    2x bolts, EP10, 13 Nm, Older vins may be equipped with additional fastener count
  41. Remove upper nut securing HV battery rear skid plate enclosure
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    Note
    1x nut, 10mm, 13 Nm, Fastener count may vary on older built vehicles
  42. Remove upper bolts securing HV battery rear skid plate enclosure
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    Note
    4x bolts, 13mm, 35 Nm
  43. Remove HV battery rear skid plate enclosure
  44. Position coolant drain underneath RH rear of HV battery
  45. Disconnect RH coolant hose from rear of HV battery
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    Note
    1x spring clip, 2x plugs, Plug both the coolant hose and passthrough
  46. Release clips securing HV battery return tube from rear of HV battery
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    Note
    2x clips
  47. Remove coolant drain container from underneath vehicle
  48. Disconnect AC HV harness connector from right rear of HV battery
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    Note
    1x connector, 2 stage connector, Release the red tab before releasing the black locking lever
  49. Disconnect FDU HV harness connector from HV battery
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    Note
    1x connector, Release locking tab and rotate the release lever up to disengage the connector, Do not force the release lever up, Ensure the alignment tabs on the FDU header are not damaged
  50. Remove center ski cover from HV battery
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    Note
    6x bolts, EP14, 34 Nm, Recommend assistance, Short bolts at both ends, Long bolts in the middle
  51. Use a spring loaded center punch to mark locations for drilling
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    Note
    Use a center punch to create a small dimple in the centre of each spot weld
  52. Use spot weld cutters to remove the Front Skid Plate Bracket
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    Note
    Use 3/8" size spot weld cutter,Use chiselling technique at high speed to allow the chips to fly out as the cut exits the aluminium, or clean the cutter manually after short drilling, Drill to a depth of no more than the thickness of the Skid Plate Bracket approximately 2.5mm,
  53. Separate Skid Plate Bracket from HV battery
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    Note
    When cutter is deep enough, use 38 mm Scraper or plastic wheel weight removal chisel and light hammer blows to try to separate the skid plate from the battery, If it didn't get off easy, try to drill a little deeper
  54. Apply masking tape
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    Note
    Mark mating surface with masking tape
  55. Clean mating area
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    Note
    Use 120 grit sand paper to remove paint on the mating surfaces
  56. Create a stencil of holes for new skid plate bracket
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    Note
    Stick the masking tape on old Skid Plate Bracket along the top edge,Use thin ballpoint pen to mark the holes and Skid Plate Bracket location on a masking tape peace
  57. Mark the location of the new holes
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    Note
    Remove a stencil from the old bracket and apply to the new one strictly in the same location,Use center punch to create a small dimple in the centre of each circle
  58. Drill holes in the new Skid Plate Bracket
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    Note
    Secure the new Skid Plate Bracket in a vise,Use 5/16" Spot Weld Cutter this time, Use chiselling technique at high speed to allow the chips to fly out as the cut exits the hole, or clean the cutter manually after short drilling,
  59. Remove masking tape
  60. Clean mating area
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    Note
    Use 120 grit sand paper to clean future mating surfaces
  61. Fit the pieces together
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    Note
    Try the Skid Plate Bracket on a HV battery and check that the flat surfaces fit snugly together
  62. Clean mating areas with Isopropyl alcohol
  63. Allow 1 minute dry time
  64. Apply adhesive
  65. Install the Skid Plate Bracket on a HV battery
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    Note
    Install Skid Plate Bracket on a HV batteryUse the long bolt from the ski plate, screw it in by hand in the first hole,Apply slight pressure to the bracket using 2 wedges, slightly zip tie the wedge as shown on pictures
  66. Set up temperature measurement tool
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    Note
    Set up the Digital multimeter with thermocouple attached to it, Be careful with the polarity of the plug, Press LPF button to change from °F to C°, Turn switch to Temp position,Check if the temperature readings are real,Attach thermocouple to the skid plate
  67. Use a heat gun to reduce curing time of adhesive
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    Note
    WarningWhen force curing adhesive in a repair area near the High Voltage Battery, do not allow the HighVoltage Battery to reach a temperature above 74°C (165°F). Heating the High Voltage Batteryabove 74°C (165°F) for an extended period could result in injury to personnel and/or damage tothe battery.Attach the Bosch digitally adjustable temperature heat gun to the Transmission Jack with the zip ties, Install it facing the skid plate bracket 10 cm from itCuring▪ 7 days at 23 ± 2 °C▪ 2 hours at 65 ± 2 °C
  68. Allow adhesive to cure
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    Note
    Allow adhesive to cure 2 hours
  69. Allow adhesive to cure
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    Note
    Allow adhesive to cure 2 hours
  70. Remove wedges
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    Note
    Cut the zip tie and remove wedges, Remove bolt from the center ski cover first hole
  71. Touch Up bare metal spots
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    Note
    Touch Up bare metal spots
  72. Install center ski cover onto HV battery
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    Note
    6x bolts, EP14, 34 Nm, Recommend assistance, Short bolts at both ends, Long bolts in the middle
  73. Connect FDU HV harness connector to HV battery
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    Note
    1x connector, Make sure the connector lock is 90 degrees from the connector before beginning to secure the connector, Use one hand to support the connector while other latching locking tab. Once installed, verify that the latch is not damaged and fully secured in the latched position
  74. Connect AC HV harness connector to right rear of HV battery
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    Note
    1x connector, Hold connector level with header and secure with even upward force, Rotate lever arm and secure locking tab, Verify that the latch is fully secured and not damaged
  75. Install clip securing RH coolant hose to HV battery
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    Note
    1x clip
  76. Position coolant drain underneath RH rear of HV battery
  77. Connect RH inner coolant hose onto rear of HV batter
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    Note
    1x spring clip, 2x plugs, Remove plugs from the coolant hose and passthrough, Perform push-pull-push test to make sure hose is fully seated.Vacuum fill required if > 1L lost during repair
  78. Remove coolant drain container from underneath vehicle
  79. Position HV battery rear skid plate enclosure onto HV battery for installation
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    Note
    Recommend assistance if needed
  80. Install upper bolts securing HV battery rear skid plate enclosure hand tight
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    Note
    4x bolts, 13mm, 35 Nm, Torque at later step
  81. Install upper nut securing HV battery rear skid plate enclosure hand tight
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    Note
    1x nut, 10mm, 13 Nm, Torque at later step
  82. Install lower bolts securing HV battery rear skid plate enclosure
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    Note
    2x bolts, EP10, 13 Nm, Earlier vins may be equipped with additional bolts
  83. Torque bolts securing HV battery rear skid plate enclosure to vehicle
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    Note
    4x bolts, 13mm, 35 Nm
  84. Torque upper nut securing HV battery rear skid plate enclosure
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    Note
    1x nut, 10mm, 13 Nm
  85. Install RH side hose clips to HV battery rear skid plate enclosure
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    Note
    2x fir tree clips
  86. Install LH side hose clip to HV battery rear skid plate enclosure
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    Note
    1x clip
  87. lnstall rear aero shield
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    Note
    11x bolts, 10mm, 5 Nm, Apply Loctite 222 onto rear aero shield bolts
  88. Install LH and RH clips securing rear aero shield to wheel house liner
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    Note
    2x clips
  89. Install ancillary harness bracket to front of HV battery
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    Note
    2x barrel clips
  90. Connect AC compressor HV harness connector
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    Note
    1x locking connector, 3 stage locking connector, After the connector is seated and there is an audible click, Engage the second lock by pressing towards the connector, Engage locking tab
  91. Install HV connector mount bracket to stud on LH side of firewall
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    Note
    1x mount bracket
  92. Install FDU HV harness connector to FDU
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    Note
    1x connector, Install HV connector lever lock to FDU HV cable connector, Align connector to FDU then remove HV connector lever lock before fully latching connector, Use one hand to support the connector while other latching locking tab, Once installed, verify that the latch is not damaged and fully secured in the latched position
  93. Install bolt securing FDU HV harness to FDU
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    Note
    1x bolt, 10mm, 10 Nm
  94. Position coolant drain container below HV battery hose
  95. Connect RH manifold tube onto LH manifold tube
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    Note
    1x spring clip, 1x plug, Remove plug from HV battery, Perform push-pull-push test to make sure hose is fully seated.Vacuum fill required if > 1L lost during repair
  96. Remove coolant drain container from underneath vehicle
  97. Install front skid plate
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    Note
    4x bolts, EP10, 13 Nm, 2x tabs, Position and move backward to installation
  98. Apply Loctite 222 onto front wheel liner bolts and install bolts securing front wheel liners to front skid plate
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    Note
    2x blots, 10mm, 5 Nm, Apply Loctite 222 onto front wheel liner bolts
  99. Position front aero shield onto vehicle
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    Note
    2x nuts, 15mm, 5 Nm, Hand-tighten the nuts to temporarily hold the panel in place
  100. Apply Loctite 222 onto front aero shield bolts and install outer fasteners to front aero shield
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    Note
    7x bolts, 10mm, 5 Nm
  101. Lower vehicle fully
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    Note
    Raise lift off locks, then hold lock release lever to keep locks free while vehicle is lowered
  102. Connect 2nd row seat harness and secure cushion
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    Note
    2x clips, 2x connectors, Insert buckles through holes, Slide rear inward then align front clips, Perform push-pull-push test
  103. Remove coolant bottle cap
  104. Fill coolant to proper level
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    Note
    Ensure that the fluid level filled to the Max line
  105. Connect First Responder Loop and LV battery
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    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
  106. Move RH front seat to original position
  107. Move LH front seat to original position
  108. Access Thermal System routines using UI
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    Note
    Select Service mode > Thermal
  109. Select "Coolant Purge Start" using UI
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    Note
    Wait until coolant pumps stop running (audible noise), Routine Passed will appear, but pumps will run for 10 minutes, If you start next another routine during this time, it will fail, Make sure vehicle is not in "Drive", Routine is still running despite the completed message, Speeds can be monitored in garage under PT Thermal tab, Idle speed = ~1500 RPM, Test will vary speeds from 3500-6500 RPM and actuate valves between SERIES and PARALLEL, Putting vehicle into "Drive" will stop this routine, If speeds hover at 7000 RPM, this indicates the pumps are air locked, perform a vacuum fill, Continue to add coolant and purge until the coolant level reaches between the NOM and MAX Lines on the bottle
  110. Inspect coolant level and top off as necessary
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    Ensure that fluid level is at Max line
  111. Install coolant bottle cap
  112. Install rear underhood apron
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    Note
    14x clips, Hold rear wall of frunk to keep from flexing while engaging front clips
  113. Close hood
  114. Raise all windows
  115. Close all four doors
  116. Remove lift arms from below vehicle
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    Note
    Lower rack arms fully and remove them from under vehicle