HV Harness - Heat Pump - HV Battery (Remove and Replace)
Correction code 16300072 5.46 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 proper PPE is worn when performing the below procedure.
- Remove the HV battery. See HV Battery (AWD) (Remove and Install).
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Secure PCS Flush adapter to PCS inlet hose coupling
NoteRemove plugs as required, Verify fully seated, Perform push-pull-push test
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Secure coolant cart flush hose to regulator and PCS Flush adapter
NoteVerify regulator valve is closed, Pressure regulator is not adjustable (set at 20 psi)
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Secure PCS Drain adapter to the end of the PCS outlet hose
NoteVerify valve is closed, Remove plug as required, Verify fully seated, Perform push-pull-push test
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Secure coolant cart drain hose to PCS drain adapter and coolant drain container
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Open valve on PCS Drain adapter
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Connect shop air to regulator
NoteMake sure regulator valve is closed prior to connecting shop air
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Slowly open valve on pressure regulator and allow coolant to drain out of HV battery
NoteAllow coolant to drain
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Close valve on pressure regulator once no more coolant is draining
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Close valve on PCS Drain adapter
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Remove cart drain hose from PCS Drain adapter
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Remove PCS Drain adapter from end of PCS outlet hose
Note1x spring clip
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Remove cart flush hose from PCS Flush adapter
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Remove PCS Flush adapter from PCS inlet coupling
Note1x spring clip
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Remove clip securing PCS outlet hose to HV battery
Note1x clip
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Release PCS outlet hose from HV battery
Note1x spring clip
- 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
- Remove the pyrotechnic battery disconnect. See Pyrotechnic Battery Disconnect (Remove and Replace).
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Remove fasteners securing front access cover to HV battery assembly and remove doubler
Note17x bolts, 7mm, 4 Nm, 2x nuts, 10mm, 4 Nm, 2x datums, Discard patch fasteners, Remove all fasteners and separate doubler from front cover
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Disconnect coolant hoses from PCS and install plugs
Note2x hoses, Use the special tool to release the 2x clips on each hose, Support front access cover with non-conductive material as needed, Use a shop towel to catch any minimal excess coolant
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Remove front access cover from HV battery
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Remove front access cover foam gasket
Note1x gasket, Remove seal, Discard seal after removal
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Disconnect PCS to DC bus HV connector
Note1x connector, Release the locking tab by pulling upward, May need plastic trim tool to help lift the connector upward
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Disconnect PCS logic connector from PCS
Note1x connector
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Disconnect PCS LV DC power harness connector
Note1x connector, Release the locking tab by pulling upward, May need plastic trim tool to help lift the connector upward
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Disconnect AC filter HV harness connector from PCS
Note1x connector, Release the locking tab by pulling upward, May need plastic trim tool to help lift the connector upward
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Release AC Filter harness clips
Note3x clips
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Remove bolts securing PCS to mounting tray
Note6x bolts, 8mm, 6 Nm, Only remove the 8mm fasteners, Do not remove the T30 fasteners, Depending on battery revision, mica tape may be covering the rear bolts, Peel tape aside as required
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Lift PCS up and out of front ancillary bay area and remove from vehicle
NoteShift PCS left to clear lip of battery enclosure then straight up to remove
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Remove PCS mounting tray from front ancillary bay area
Note6x bolts, 10mm, 8 Nm, Take note of ground bolt, Ground fastener may vary depending on battery pack revision
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Release HV connector 6 pin carrier connection
Note1x locking connector, Disengage locking tab and release connector
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Release HV connector 6 pin carrier connection from clipping point
Note1x clip, Release from clipping location
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Remove mica shielding over FDU carrier
Note1x Mica shielding
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Remove mica shielding over the fuses
Note1x Mica shielding
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Remove mica tape shielding over inductor coil
Note1x Mica Shielding, Remove the shielding, Use combination of HV tools and trim tools to aid in unwrapping the shield, Note as the shielding tears there will be leftover debris
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Clean away all excess debris caused by the mica shielding
NoteUse ESD vacuum and carefully remove all leftover debris
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Release HV connector FDU carrier connection
Note1x locking connector, Disengage locking tab and release connector
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Release HV connector 6 pin carrier connection from clipping point
Note1x clip, Release from clipping location
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Remove FDU HV header
Note2x bolts, EP10, 10 Nm, Gently separate FDU HV header
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Release bolts securing HV connector 0 degree carrier and remove
Note2x bolts, 13mm, 5 Nm +60 degrees, Discard fasteners after removal
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Release HV connector 6 pin carrier cable from fuse
Note1x nut, 8mm, 4.5 Nm, Do not drop fastener, Move cable aside
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Release HV connector 6 pin carrier cable from inductor coil
Note1x nut, 7mm, 2.5 Nm, Do not drop fastener, Move cable aside
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Release HV connector 6P header
Note2x bolts, EP10, 10 Nm, Gently separate HV header
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Remove HVB Heat Pump HV Harness
NoteRelease tape securing harness to front tray, Remove harness from battery pack
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Position HVB Heat Pump HV Harness
NotePosition harness into pack, Return to original position, Apply new Kapton tape as required
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Secure HV connector 6P header
Note2x bolts, EP10, 10 Nm, Align connector casing to header, Verify the fitment as this header will secure at a slight angle, Take time to line them up and then begin threads
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Secure HV connector 6 pin carrier cable onto inductor coil
Note1x nut, 7mm, 2.5 Nm, Do not drop fastener
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Secure HV connector 6 pin carrier cable onto fuse
Note1x nut, 8mm, 4.5 Nm, Do not drop fastener
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Cleaning mating surfaces of the HV connector 0 degree carrier
NoteAllow 1 min for IPA to dry
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Install bolts securing FDU HV connector 0 degree carrier
Note2x bolts, 13mm, 5nm +60 degrees, Install new fasteners
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Install FDU HV header
Note2x bolts, EP10, 10 Nm
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Perform Hioki impedance test at the HV joints of the FDU HV connector 0 degree carrier
Note2x HV joint, Verify meter has been properly zero adjusted prior to usage, The acceptable resistance is below d 0.045 mΩ (45 μΩ), If the resistance is greater than 0.045 mΩ (45 μΩ), there is too much resistance in the High Voltage joint. Remove the fastener, clean areas with isopropyl alcohol, install fastener back and test again
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Secure HV connector FDU carrier connection
Note1x connector, Fully engage locking tab
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Secure HV connector 6 pin carrier connection onto clipping point
Note1x clip
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Secure HV connector 6 pin carrier connection
Note1x connector, Fully engage locking tab
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Install front ancillary insulator in area of previous mica shields - Placeholder
Note1x insulator, Install a new insulator where the old mica tape use to be, Maneuver insulator and secure into place, Do not pinch any wiring
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Install PCS mounting tray to front ancillary bay area
Note6x bolts, 10mm, 8 Nm, Be mindful not to pinch any wires underneath the tray
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Install PCS to front ancillary bay area
NoteShift PCS under lip of battery enclosure
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Install fasteners securing PCS to mounting tray
Note6x bolts, 8mm, 6 Nm, Depending on battery revision, mica tape may be equipped over the rear bolts, Re-secure tape as required
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Secure AC Filter harness clips
Note3x clips
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Connect AC filter HV harness connector to PCS
Note1x connector, Push down to secure locking tab
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Connect PCS LV DC power harness connector
Note1x connector, Push down to secure locking tab
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Connect PCS logic connector to PCS
Note1x connector
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Connect PCS to DC bus HV connector
Note1x connector, Push down to secure locking tab
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Install front access cover foam gasket
Note1x gasket, Install new gasket, Position gasket over the raised thread and stud collars, Verify there is no excess debris on the cover or pack casing that would prevent proper sealing,
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Position front cover for installation and secure hoses to PCS
Note2x hoses, 2x clips on each hose, Recommend assistance, Secure hoses while holding cover, Remove plugs
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Install front access cover to HV battery
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Position front cover doubler and install fasteners securing front access cover to HV battery assembly
Note17x patch bolts, 7mm, 4 Nm, 2x nuts, 10mm, 4 Nm, 2x datums, Install new patch fasteners, Position doubler over front access cover and thread in bolts, Some tension may be present, Verify bolts are all threaded and torque down fasteners in an even pattern
- Measure the voltage across the pyrotechnic battery disconnect mount points, and then install the pyrotechnic battery disconnect. See Pyrotechnic Battery Disconnect (Remove and Replace).
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Secure coolant leak test adapter to PCS inlet coupling
NoteThis adapter is connected to regulated air line adapter, Make sure the locking tab is fully seated, Perform push-pull-push test
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Secure closed ended coolant leak test adapter to PCS outlet coupling
NotePerform push-pull-push test
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Secure pressure test fixture hose to leak test adapter
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Secure compressed air line to pressure test fixture
NoteMake sure valves are closed on pressure regulator
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Open the regulator valve then slowly adjust regulator to 50 psi
NoteUse caution due to high pressure, Make sure to wear safety glasses and personal protection equipment
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Open the 2nd valve slowly
NoteSlowly allow air to enter system
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Allow 1 minutes and 50 seconds for the pressure to stabilize
NoteAllow 1 minutes and 50 seconds (110 seconds) for pressure to stabilize
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Close the regulator valve
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Record start pressure value
- Allow 4 minutes to test
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Record end pressure value
NoteIf pressure did not drop more than 0.35 psi, continue to next step, If pressure dropped more than 0.35 psi, then inspect for leaks and retest
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Release compressed air line from pressure test fixture
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Open the regulator valve slowly
NoteSlowly allow air to leave the system
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Release pressure test fixture hose from coolant leak test adapter
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Remove coolant leak test adapter from PCS inlet coupling
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Remove closed ended coolant leak test adapter from PCS outlet coupling
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Secure PCS outlet hose to HV battery
Note1x spring clip, Perform push-pull-push test
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Install clip securing PCS outlet hose to HV battery
Note1x clip
- Install the HV battery. See HV Battery (AWD) (Remove and Install).