Rear Drive Unit - Rear Drive Inverter - Set (Tri-Motor) (Remove and Replace)
Correction code NA 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.
- 2024-12-11: Corrected air leak test valve sequence.
- Raise and support the vehicle. See Raise Vehicle - 2 Post Lift.
- Open the LH front door and lower the LH front window.
- Open the powered frunk.
- Connect a laptop with Toolbox 3 to the vehicle. See Toolbox 3 (Connect and Disconnect).
- Unlock the vehicle Gateway. See Gateway (Unlock).
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Select 'Procedures'
NoteLighting Bolt Icon > High Voltage > Procedures
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Select 'Rear Left Drive Inverter Replacement'
NoteProcedures > Drive-Inverter-Replacement > Rear Left Drive Inverter ReplacementNote, If replacing the Right-Rear inverter then utilize the Right-Rear Inverter Dashboard instead
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Select ‘Store Boot + App Data and Start Fluid Fill/Drain’, click ‘Run’, and allow routine to complete
NoteSelect 'Close' once complete
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Select 'Procedures'
NoteLighting Bolt Icon > High Voltage > Procedures
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Select 'Rear Right Drive Inverter Replacement'
NoteProcedures > Drive-Inverter-Replacement > Rear Right Drive Inverter Replacement
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Select ‘Store Boot + App Data and Start Fluid Fill/Drain’, click ‘Run’, and allow routine to complete
NoteSelect 'Close' once complete
- Open the tonneau cover.
- Open the tailgate.
- Remove the rear underhood apron. See Underhood Trim - Rear Apron Assembly (Remove and Install).
- Disconnect MV power. See Disconnect MV Power.
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Verify operation of multimeter
NoteSet multimeter to DC voltage, Confirm multimeter is properly measuring voltage by testing MV battery, Touch lightly and do not damage terminals
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Remove frunk assembly
Note6x bolts, 10mm, 12 Nm, 2x bolt caps, 2x bumpstops, 1x connector, Remove bolt covers from frunk floor, Remove washer fluid cap by gently prying upwards, Rotate bumpstops counter clockwise to release, the 25mm socket from PT Sensor kit can be used, Avoid straining emergency frunk release connector
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Raise vehicle fully
NoteSet to a comfortable working height, Lower to locks, Ensure locks engage on both sides to prevent tilting
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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
- Remove leather over gloves and HV insulating gloves
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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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Open bed cargo tub lid
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Remove cargo tub struts from cargo lid
Note2x strut clips
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Remove bed cargo tub lid
Note4x bolts, 10mm, 5 Nm, Recommend assistance
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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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Remove LH bed closeout panel
Note6x clips, 1x tab, Release LH tailgate cable by disengaging lock spring from bolt and sliding cable eyelet off to allow removal of bed closeout panel from vehicle
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Remove LH upper bed side wall assembly
Note8x clips, Start from rear, Lift tonneau seal as required. Pull from the bottom downwards.
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Remove LH lower bed side wall
Note1x bolt, 15mm, 46 Nm, 2x bolts, T45, 36 Nm, 4x bolts, 10mm, 11 Nm, 2x nuts, 10mm, 7 Nm, 4x clips, 1x fastener cover, 1x connector, Release locking tabs, Disconnect bed outlet connectors from bed side wall and ground strap, 1x bolt, 10mm, 10 Nm, 2x connectors, Release locking tabs, Slide lock to release, Recommend assistance
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Remove RH bed closeout panel
Note6x clips, 1x tab, Release RH tailgate cable by disengaging lock spring from bolt and sliding cable eyelet off in order to remove bed closeout panel from vehicle
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Remove RH upper bed side wall assembly
Note8x clips, 1x connector. Pull downwards
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Remove RH bed side wall
Note1x bolt, 15mm, 46 Nm, 2x bolts, T40, 36 Nm, 4x bolts, 10mm, 11 Nm, 2x nuts, 10mm, 7 Nm, 4x clips, 1x fastener cover, 1x connector, Release locking tabs
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Remove bolts securing bed cargo tub
Note2x bolts, 10mm, 8 Nm
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Remove bed cargo tub from vehicle
NoteRecommend assistance
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Position coolant catcher below rear drive unit
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Release LH RDU inverter to heat exchange hose from drive inverter
Note1x clip, 1x hose, Plug both ends, Use a flathead to release clip on hose and release hose, Move aside as needed, Use a shop towel to clean and remove remaining coolant residue from driver inverter
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Release RDU supply hose from drive unit
Note2x clip, 2x hose, Plug both ends, Use a flathead to release clip on hose and release hose, Move aside as needed, Use a shop towel to clean and remove remaining coolant residue from driver inverter
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Remove bolt securing LH RDU HV harness onto RDU
Note1x bolts, 10mm, 11 Nm
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Disconnect LH RDU HV cable from RDU
Note1x connector, Disengage locking tab then release connector body, Move aside as needed
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Disconnect LH RDU logic connection
Note1x harness clip, 1x connector, Release locking tab, Do not get coolant ingress into this connector, Move aside as needed
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Remove phase access cover label
NoteLabel is one time use, Discard after removal
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Remove bolts securing phase out cover assembly
Note2x bolts, EP10, 14 Nm
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Remove phase out cover assembly
NoteUse a plastic trim tool to aid in removal, If phase out cover or O-rings are damaged then replace with a new unit
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Remove bolts securing 3 phase busbars to rear inverter assembly
Note3x bolts, 10mm, 11.5 Nm, Fasteners should be reused, If fasteners need to be replaced then follow torque sequence, Tighten to 12.5 Nm then reverse 180 degrees then tighten to 5 Nm
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Put on ESD wrist strap and secure it to inverter housing
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Remove bolts securing LH RDU inverter to gearbox assembly
Note9x bolts, EP10, 12.5 Nm
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Remove LH drive inverter from RDU and drain coolant
NoteTake caution to avoid damage to PCBA
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Place drive inverter onto ESD mat
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Remove ESD wrist strap from old inverter
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Prepare new drive inverter
NotePrepare new drive inverter, Save packaging to MRB old drive inverter, Remove any red protective covers
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Secure ESD strap onto new inverter housing
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Wipe HV cable lugs to ensure contact surfaces are free of debris
NoteAllow 1 minute dry time
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Install fasteners securing inverter to gearbox assembly
Note9x bolts, EP10, Install hand tight, Torque at a later step
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Torque fasteners securing inverter to gearbox assembly
Note9x bolts, EP10, 12.5 Nm, Torque two fasteners nearest alignment dowels first
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Install bolts securing LH drive inverter to 3 phase lugs
Note3x bolts, 10mm, 11.5 Nm, Fasteners should be reused, If fasteners need to be replaced then follow torque sequence, Tighten to 12.5 Nm then reverse 180 degrees then tighten to 5 Nm
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Install phase out cover assembly
NoteIf phase out cover or O-rings are damaged then replace with a new unit
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Install bolts securing RDU phase out cover assembly
Note2x bolts, EP10, 14 Nm
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Install phase out cover label
NoteOne time use, install new label
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Remove ESD wrist strap from inverter
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Take old inverter and prepare for MRB, Label properly for return or disposal
NoteUse ESD wrist strap, Label inverter for MRB and return to packaging, Secure any protective red caps, Return or dispose of packaging through proper channels, Label the part as MRB
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Install leak test adapter plug to 12V connector at inverter - placeholder
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Install leak test adapter to RDU HV connector - placeholder
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Connect regulator to adapter at HV connector
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Close both valves on the regulator test tool
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Connect regulator to air supply
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Open inlet valve on regulator
valve
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Set regulator to 1 psi
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Open the outlet valve
- Wait 45 seconds for pressure to settle
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Close the inlet valve
- Record value of starting pressure
- Wait 60 seconds for test
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Record value of end pressure
NoteIf pressure did not drop more than 0.04 psi, continue to next step. If pressure dropped more than 0.04 psi, then inspect for leaks.
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Close both valves
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Disconnect air supply from regulator tool
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Disconnect regulator from leak test adapter at HV connector
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Remove leak test adapter from HV connector
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Remove leak test adapter plug from 12V connector at inverter - placeholder
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Remove bolt securing RH RDU HV harness onto RDU
Note1x bolts, 10mm, 11 Nm
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Disconnect RH RDU HV cable from RDU
Note1x connector, Disengage locking tab then release connector body, Move aside as needed
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Disconnect RH RDU logic connection
Note1x harness clip, 1x connector, Release locking tab, Do not get coolant ingress into this connector, Move aside as needed
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Remove phase access cover label
NoteLabel is one time use, Discard after removal
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Remove bolts securing phase out cover assembly
Note2x bolts, EP10, 14 Nm
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Remove phase out cover assembly
NoteUse a plastic trim tool to aid in removal, If phase out cover or O-rings are damaged then replace with a new unit
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Remove bolts securing 3 phase busbars to rear inverter assembly
Note3x bolts, 10mm, 11.5 Nm, Fasteners should be reused, If fasteners need to be replaced then follow torque sequence, Tighten to 12.5 Nm then reverse 180 degrees then tighten to 5 Nm
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Put on ESD wrist strap and secure it to inverter housing
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Remove bolts securing RH RDU inverter to gearbox assembly
Note9x bolts, EP10, 12.5 Nm
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Remove RH drive inverter from RDU and drain coolant
NoteTake caution to avoid damage to PCBA
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Place drive inverter onto ESD mat
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Remove ESD wrist strap from old inverter
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Prepare new drive inverter
NotePrepare new drive inverter, Save packaging to MRB old drive inverter, Remove any red protective covers
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Secure ESD strap onto new inverter housing
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Wipe HV cable lugs to ensure contact surfaces are free of debris
NoteAllow 1 minute dry time
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Install fasteners securing inverter to gearbox assembly
Note9x bolts, EP10, Install hand tight, Torque at a later step
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Torque fasteners securing inverter to gearbox assembly
Note9x bolts, EP10, 12.5 Nm, Torque two fasteners nearest alignment dowels first
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Install bolts securing LH drive inverter to 3 phase lugs
Note3x bolts, 10mm, 11.5 Nm, Fasteners should be reused, If fasteners need to be replaced then follow torque sequence, Tighten to 12.5 Nm then reverse 180 degrees then tighten to 5 Nm
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Install phase out cover assembly
NoteIf phase out cover or O-rings are damaged then replace with a new unit
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Install bolts securing RDU phase out cover assembly
Note2x bolts, EP10, 14 Nm
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Install phase out cover label
NoteOne time use, install new label
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Remove ESD wrist strap from inverter
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Take old inverter and prepare for MRB, Label properly for return or disposal
NoteUse ESD wrist strap, Label inverter for MRB and return to packaging, Secure any protective red caps, Return or dispose of packaging through proper channels, Label the part as MRB
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Install leak test adapter plug to 12V connector at inverter - placeholder
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Install leak test adapter to RDU HV connector - placeholder
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Connect regulator to adapter at HV connector
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Close both valves on the regulator test tool
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Connect regulator to air supply
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Open inlet valve on regulator valve
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Set regulator to 1 psi
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Open the outlet valve
- Wait 45 seconds for pressure to settle
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Close the inlet valve
- Record value of starting pressure
- Wait 60 seconds for test
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Record value of end pressure
NoteIf pressure did not drop more than 0.04 psi, continue to next step. If pressure dropped more than 0.04 psi, then inspect for leaks.
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Close both valves
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Disconnect air supply from regulator tool
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Disconnect regulator from leak test adapter at HV connector
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Remove leak test adapter from HV connector
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Remove leak test adapter plug from 12V connector at inverter - placeholder
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Connect RH RDU logic connection
Note1x connector, verify lever is fully engaged, 1x harness clip, Inspect for any fluid in connector and clean before installation
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Connect RH RDU HV connector
Note1x connector, Engage locking tab
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Install bolt securing RH RDU HV harness onto RDU
Note1x bolt, 10mm, 11 Nm
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Connect LH RDU logic connection
Note1x connector, verify lever is fully engaged, 1x harness clip, Inspect for any fluid in connector and clean before installation
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Connect LH RDU HV connector
Note1x connector, Engage locking tab
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Install bolt securing LH RDU HV harness onto RDU
Note1x bolt, 10mm, 11 Nm
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Secure RDU supply hose onto drive inverters
Note2x clip, 2x hose, Re-secure clip if it detached from hose, Engage hose and verify the hose is fully and properly secured, Perform push-pull-push test
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Secure LH RDU inverter to heat exchange hose from drive inverter
Note1x clip, 1x hose, Re-secure clip if it detached from hose, Engage hose and verify the hose is fully and properly secured, Perform push-pull-push test
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Secure RH RDU inverter to heat exchange hose from drive inverter
Note1x clip, 1x hose, Re-secure clip if it detached from hose, Engage hose and verify the hose is fully and properly secured, Perform push-pull-push test
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Raise vehicle fully
NoteSet to a comfortable working height, Lower to locks, Ensure locks engage on both sides to prevent tilting
- Remove coolant catcher from below vehicle
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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 vacuum refill cap onto coolant bottle assembly
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Place empty coolant container into front storage area
NoteIf frunk is not installed take caution, CFM fan shroud assembly cannot support a full coolant container, Ensure overflow container is empty, Place fender cover over FEM and front fascia
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Fill container with at least 15L of coolant
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Place filled coolant container onto coolant drain & fill cart
NoteDo not place container with 15L of coolant on top of CFM fan shroud, Position cart as close as possible to front of vehicle
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Setup coolant refill tool
NoteVerify all valves on refill tool are in the closed position, See image for clarity
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Install vacuum refill hose to refill cap on coolant bottle
NotePerform push-pull-push test to verify hose is fully installed
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Position overflow hose into empty container
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Place refill hose inside filled coolant container
NoteMake sure hose end is fully submerged into coolant
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Connect shop air supply to coolant refill tool
NoteIf not already done, Verify refill valve is set to off
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Open air inlet valve to draw a vacuum, Once gauge stabilizes, Fully close valve
NoteGauge stabilizes roughly (60-70 cmHg), Vacuum should not drop after the valves are closed
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Slowly open the refill valve to allow coolant to be drawn into the system
NoteMake sure hose end of refill hose is fully submerged during entire process
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Once the gauge reads zero, close the coolant refill valve
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Remove shop air supply to coolant refill tool
NoteIf not already done, Verify refill valve is set to off
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Remove coolant refill hose from coolant container
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Remove coolant overflow hose from coolant container
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Remove vacuum refill hose from refill cap on coolant bottle
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Remove vacuum refill cap from coolant bottle assembly
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Remove coolant refill tool from vehicle
NoteMove coolant drain & fill cart away from vehicle
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Remove coolant container from inside underhood area
- Reconnect MV power. See Disconnect MV Power.
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Select 'Procedures'
NoteLighting Bolt Icon > High Voltage > Procedures
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Select 'Rear Left Drive Inverter Replacement'
NoteProcedures > Drive-Inverter-Replacement > Rear Left Drive Inverter ReplacementNote, If replacing the Right-Rear inverter then utilize the Right-Rear Inverter Dashboard instead
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Select ‘Stop Thermal Fluid Fill/Drain’, click ‘Run’, and allow routine to complete
NoteSelect 'Close' once complete
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Select "Restore Bootloader Data", click "Run", and allow routine to complete
NoteSelect 'Close' once complete, Bootloader data restore must be completed before a CAN redeploy is performed
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Select 'Procedures'
NoteLighting Bolt Icon > High Voltage > Procedures
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Select 'Rear Right Drive Inverter Replacement'
NoteProcedures > Drive-Inverter-Replacement > Rear Right Drive Inverter Replacement
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Select "Restore Bootloader Data", click "Run", and allow routine to complete
NoteSelect 'Close' once complete, Bootloader data restore must be completed before a CAN redeploy is performed
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Select 'Procedures'
NoteLighting Bolt Icon > High Voltage > Procedures
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Select 'Rear Left Drive Inverter Replacement'
NoteProcedures > Drive-Inverter-Replacement > Rear Left Drive Inverter ReplacementNote, If replacing the Right-Rear inverter then utilize the Right-Rear Inverter Dashboard instead
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Run 'CAN Redeploy' routine
NoteCAN redeploy will start immediately
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Select "Restore Application Data", click "Run", and allow routine to complete
NoteSelect 'Close' once complete
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Select 'Procedures'
NoteLighting Bolt Icon > High Voltage > Procedures
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Select 'Rear Right Drive Inverter Replacement'
NoteProcedures > Drive-Inverter-Replacement > Rear Right Drive Inverter Replacement
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Select "Restore Application Data", click "Run", and allow routine to complete
NoteSelect 'Close' once complete
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Run 'Coolant Air Purge' routine
NoteTouch time only, 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
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Inspect coolant level and top off as necessary
NoteEnsure that the fluid level is at the Max line, Top off fluid as required
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Install coolant bottle cap
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Run 'Thermal Performance' routine
NoteVia Front Drive Unit Replacement dashboard, Ensure result is 'Passed'
- Install the rear underhood apron. See Underhood Trim - Rear Apron Assembly (Remove and Install).
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Place stanchions around vehicle and set up a safety perimeter before performing resolver error learn
NoteUse safety stanchions to section off vehicle before driving vehicle on a lift
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Raise vehicle partially and lower lift 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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Select 'Procedures'
NoteLighting Bolt Icon > High Voltage > Procedures
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Select 'Rear Right Drive Inverter Replacement'
NoteProcedures > Drive-Inverter-Replacement > Rear Right Drive Inverter Replacement
- Run ODIN routine PROC_DIR_X_RESOLVER-ERROR-LEARNvia Toolbox: (link)via Service Mode Plus: Drive Inverter ➜ Rear Drive Inverter Replacement ➜ Resolver Error Learn
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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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Remove safety stanchions from around vehicle after resolver learn is completed
NoteRemove all stanchions after vehicle is finished with the resolver error learn
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Install bed cargo tub into vehicle
NoteRecommend assistance
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Install bolts securing bed cargo tub
Note2x bolts, 10mm, 8 Nm, Align tub as needed
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Install RH bed side wall
Note1x bolt, 15mm, 46 Nm, 2x bolts, T40, 36 Nm, 4x bolts, 10mm, 11 Nm, 2x nuts, 10mm, 7 Nm, 4x clips, 1x fastener cover, 1x connector, Recommend assistance
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Install RH bed closeout panel
Note6x clips, 1x tab, Release RH tailgate cable to install bed closeout panel from vehicle
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Install RH upper bed side wall assembly
Note8x clips, Replace any missing or damaged clips, Lift tonneau seal as required
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Install LH lower bed side wall
Note1x bolt, 15mm, 46 Nm, 2x bolts, 13mm, 36 Nm, 4x bolts, 10mm, 11 Nm, 2x nuts, 10mm, 7 Nm, 4x clips, 1x fastener cover, 1x connector, Secure locking tabs, Connect bed outlet connectors onto bed side wall and ground strap, 1x bolt, 10mm, 10 Nm, 2x connectors, Secure locking tabs, Slide lock to secure, Recommend assistance
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Install LH bed closeout panel
Note6x clips, 1x tab, Secure LH tailgate cable once closeout installed
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Install LH upper bed side wall assembly
Note8x clips, Replace any missing or damaged clips, Lift tonneau seal as required
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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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Install bed cargo tub lid
Note4x bolts, 10mm, 6 Nm, Snug bolts, Torque will be done at later step, Position bed cargo tub lid onto vehicle, Install bolts securing bed cargo tub lid onto hinges, Recommend assistance
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Install cargo tub struts onto cargo lid
Note2x strut clips
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Close bed cargo tub lid
- Close the tonneau cover.
- Close the tailgate.
- Run ODIN routine PROC_ICE_X_EXIT-SERVICE-MODEvia Toolbox: (link)
- Remove the vehicle from the lift. See Raise Vehicle - 2 Post Lift.
- Raise the LH front window and close the LH front door.
- Review wheel alignment requirements and add correction code as needed