HV Harnesses - Rear Drive Unit - High Voltage Harness - Dual Motor (Remove and Install)
Correction code 4450074021 4450074022 FRT 1.02 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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Open LH front door
NotePush LH B-pillar door trigger to release
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Lower LH front window
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Open tonneau cover
NotePress forward arrow on LH bed rail
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Open tailgate
NotePress button to release
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Raise and support vehicle
NoteSet air suspension to "Jack Mode"
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Open powered front trunk
NoteVia exterior switch or UI
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Remove rear underhood apron
Note9x clips
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Power down vehicle via UI
NoteVerify EPBs are engaged, Select charge port icon to ensure drive state is disengaged then power down vehicle via Controls > Safety > Power Off
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Unlock fireman's loop connector and disconnect, Slide eCPA to left on the MV battery connector then lift lever to release
Note2x connectors, Unlock fireman's loop connector and disconnect, Release eCPA by pushing down to unlock and slide red locking tab to left, Wait 2 minutes for electrical circuits to discharge before disconnecting modules
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Remove RH rear wheel cap
Note1x cap, 8x clips, Use both hands to firmly pull wheel cap to release clips, Cap may remove with or without mounting ring attached
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Loosen RH rear wheel nuts
Note6x nuts, 21mm, 205 Nm
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Remove fastener covers from bed floor assembly
Note6x covers
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Remove bed floor assembly
Note10x bolts, 15mm, 56 Nm, 4x anchors, Open anchors as needed, Lift front edge with trim tool then remove panel, Recommend assistance
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Release pressurized pack air line to Ancillary
Note1x connector, Do not release air line to reservoir, Rapid loss of pressure will result if wrong air line is released.
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Remove VOSS fitting from pressurized pack air line to Ancillary
Note1x VOSS fitting, Slide threaded section back, Remove the collet, Then slide threaded section off of air line, Discard after removal
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Release pressurized pack valve block from air suspension reservoir
Note1x bolt, 10mm, 5 Nm, 1x connector, 1x clip, 1x zip tie, Release lock before connector disengagement, Cut zip tie at reservoir/ancillary air line bundle, Release harness clip at bracket
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Release air suspension valve block
Note3x rubber grommets, Rotate clockwise until top 2 rubber feet have released from bracket, Pull upwards at 45 degree angle to release bottom rubber foot from bracket, Leave all air lines and connections secured and set assembly aside
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Release air suspension reservoir
Note2x nuts, 13mm, 33 Nm, 2x fir tree clips
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Place air suspension reservoir in service position then install Ancillary Access Bench
NoteRaise and swing air suspension reservoir to the side of the bed, Place Ancillary Access Bench onto rear casting ensuring no air lines or harnesses are being pinched
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Remove fasteners securing forward section of RDU HV harness
Note2x bolts, 10mm, 11 Nm
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Raise vehicle partially and lower onto locks
NoteSet 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
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Remove RH rear wheel
Note6x nuts, 21mm, 205 Nm
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Remove RH rear wheel liner
Note19x push clips, 5x push nuts, Discard push nuts after removal
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Remove Mid-aero shield
Note6x clips, 3x bolts, 15mm, 42 Nm, 5x bolts, 13mm, 28 Nm, 2x bolts, 10mm, 6 Nm
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Remove all items from pockets and ensure not wearing metal items
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Inspect HV insulating gloves
NoteCheck 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
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Put on HV insulating gloves and leather over gloves
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Verify no HV - Install amp clamp to RDU HV harness
NoteVerify meter is zeroed out before performing measurement, Measure single cable. Verify ammeter is installed in correct direction. If current > 0.5A do not proceed with disconnecting HV connector. In this case, start vehicle electrical isolation again to make sure that all was properly shut down. Escalate for assistance as requiredIf current < 0.5A, Ok to disconnect and check voltage at HV plug on the battery side.Release locking tab and rotate the release lever up to disengage the connector, Release harness clip, Do not force the release lever up, Ensure the alignment tabs on the RDU header are not damagedMake 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
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Remove leather over gloves and HV insulating gloves
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Remove rear drive unit HV harness
Note4x bolts, T30, 5 Nm, 2x cable ties, 1x clips, Cut cable ties to free harness from bracket, Be extremely cautious when cutting near HV cables, Maneuver out of vehicle
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Install rear drive unit HV harness
Note4x bolts, T30, 5 Nm, 2x cable ties, 1x clips, Maneuver into position, Install new cable ties, Trim cable ties flush, Be extremely cautious when cutting near HV cables
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Install Mid-aero shield
Note6x clips, 3x bolts, 15mm, 42 Nm, 5x bolts, 13mm, 28 Nm, 2x bolts, 10mm, 6 Nm, Apply Loctite 222 onto mid aeroshield bolts and install fasteners
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Install RH rear wheel liner
Note19x push clips, 5x push nuts, Install new push nuts, Use of a socket and dead blow hammer can aid installation
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Install RH rear wheel
Note6x nuts, 21mm, 205 Nm
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Lower vehicle until tires are touching the ground
NoteRaise lift off locks, then hold lock release lever to keep locks free while vehicle is lowered
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Install fasteners securing forward section of RDU HV harness
Note2x bolts, 10mm, 11 Nm
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Remove Ancillary Access Bench then place air suspension reservoir into position for installation
NoteEnsure air lines are not twisted, Ensure no harnesses are caught
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Secure air suspension reservoir
Note2x nuts, 13mm, 33 Nm, 2x fir tree clips
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Secure air suspension valve block
Note3x rubber grommets, Rotate counter-clockwise until top 2 rubber feet are secured onto bracket, Push downwards at 45 degree angle to secure bottom rubber foot into bracket, Position air lines and connections into place for installation
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Install new VOSS air fitting to pressurized pack valve block at ANC circuit
Note1x VOSS fitting, 12mm, 8 Nm, Do not remove VOSS plastic plug until pressurized pack line is installed
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Secure pressurized pack air line from Ancillary to valve block
Note1x line, Remove plastic cap from VOSS fittings, Press air lines into fitting until mark aligns with top of fitting, Verify line is properly secured by performing push and pull test
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Secure pressurized pack valve block to air suspension reservoir
Note1x bolt, 10mm, 5 Nm, 1x connector, 1x clip, 1x zip tie, Secure reservoir and ancillary air lines at white marked sections
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Install bed floor assembly
Note10x bolts, 15mm, 56 Nm, 4x anchors, Open and close anchors as needed, Recommend assistance
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Install fastener covers onto bed floor assembly
Note6x covers
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Torque RH rear wheel nuts
Note6x nuts, 21mm, 205 Nm
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Install RH rear wheel cap
Note1x cap, 8x clips, Partially secure wheel cap to wheel, While partially installed wheel cover can be rotated to align with tire design, When aligned press inward from center of cap then secure all clips to mounting ring
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Slide eCPA to the right and ensure it is seated against the black lever, Connect fireman's loop 20 seconds after eCPA engagement
Note2x connectors, Slide and secure red locking tab on top of release lever, Lock fireman's loop connection, If power cycling vehicle ensure at least 60 seconds has passed since powering down
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Install rear underhood apron
Note9x clips, Adjust windshield seal as required
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Close powered front trunk
NoteVia exterior switch or UI
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Close tonneau cover
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Close tailgate
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Remove vehicle from lift
NoteLower rack arms fully and remove them from under vehicle, Remove air suspension from "Jack Mode"
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Raise LH front window
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Close LH front door