02/04/2024 12:32:58

Car Computer (HW4) (Remove and Install)

Correction code 21151031 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.

2024-04-02: Added torque specification for the bolts that attach the car computer to the bulkhead, and added a step for the installation of such bolts.

For HW3 car computer, use correction code 21151001

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.

Remove

Open the LH front door.
Lower the LH front window.
Open the RH front door.
Lower the RH front window.
Open the hood.
Remove the rear apron.
Power off the vehicle using the touchscreen.
Remove HEPA filter assembly

Note
2x bolts, 10mm, 5 Nm, Pivot rearward edge up and past brake reservoir, Then lift up to clear frunk assembly
Disconnect the LV battery connector and First Responder Loop.
Remove fresh air intake duct

Note
1x bolt, 10mm, 4 Nm, 2x clips, 1x pin, Remove bolt, Gently pry pin out from thermal beam, then remove from bulkhead studs
Place absorbent material below car computer coolant hose connection points to collect any spilled coolant
Remove car computer coolant plugs from new car computer

Note
2x coolant plugs
Release coolant hoses from car computer

Note
2x spring clips
Install coolant plugs into coolant outlets of car computer that is being removed from vehicle
Install plugs to car computer coolant hoses

Note
2x plugs, Do not need to engage spring clips
Remove the bolts (x2) that attach the car computer to the bulkhead.

Note
13 mm, 15 Nm
Remove LH IP end cap

Note
3x clips
Remove RH IP end cap

Note
3x clips
Remove RH mid A-pillar assembly

Note
1x clip, 1x tab, Release the upper clip then pull mid A-pillar upward to remove
Remove clip securing RH lower A-pillar trim

Note
1x push clip
Remove RH lower A-pillar trim

Note
6x clips, 2 guide tabs, Pull rear of lower A-pillar upward to release clip then pull rearward to release trim panel
Move the RH front seat back.
Remove RH front floormat
Remove main decor assembly

Note
2x screws, T20, 2.3 Nm, 15x clips, 1x center clip, Replace securing clips as needed
Release RH footwell assembly from IP

Note
1x screw, T20, 1.2 Nm, 1x push clip, 8x tabs, carefully pull out to release tabs
Remove RH footwell assembly

Note
2x connectors
Remove fasteners securing passenger knee air bag to vehicle

Note
2x screws, T20, 2 Nm, 1x push clip, 4x patch bolts, E10, 8 Nm, Discard patch bolts after removal, Support the knee air bag while lowering, The connector / harness length is very short
Remove passenger knee air bag

Note
1x connector, Release locking tab, Then release squib from air bag, Support air bag while disconnecting, Connector release may vary
Disconnect glove box USB cable from car computer

Note
1x connector, Depress latch on top of USB cable to release internal latches, then release from car computer.
Remove screws securing glove box assembly to IP carrier

Note
6x screws, T20, 2.3 Nm
Disconnect glove box assembly connectors

Note
3x connectors
Remove the glove box from IP carrier

Note
3x clips
Remove RH console side panel carpet

Note
12x clips, 2x locating pins, Use trim tool starting at top edge to release upper clips, Pull bottom to release remaining clips, Use caution and pull panel straight away from console, if panel is peeled off it could be damaged
Remove clip securing RH front cabin carpet to body

Note
1x clip
Fold RH front cabin carpet rearward

Note
Newer VINs may be equipped with additional foam installed below carpet
Remove the passenger footwell air duct

Note
1x push clip
Remove the RH IP air wave duct

Note
2x push clips
Release ground strap from car computer

Note
1x bolt, T25, 4 Nm, Bolt located, Discard bolt after removal
Release connections at LH side of car computer

Note
5x connectors, Release locks on connectors before removal
Disconnect connectors on front side of car computer

Note
2x connectors
Remove car computer mounting fasteners

Note
2x nuts, 13mm, 8 Nm
Partially remove car computer to access RH connectors

Note
Avoid straining harness
Release connectors at RH side of car computer

Note
5x connectors, Release locks on connectors if equipped before removal
Remove board to board jumper

Note
4x connectors, 1x harness clip, This will be installed on new car computer

Install

Install board to board jumper on the car computer

Note
4x connectors, 1x harness clip, Engage locking tabs
Secure connectors at RH side of car computer

Note
5x connectors, Engage locks on connectors if equipped
Install car computer to mounting studs

Note
2x nuts, 13mm, 8 Nm
Install connectors on front side of car computer

Note
2x connectors
Install connectors at LH side of car computer

Note
5x connectors, Engage locking tabs if equipped
Secure ground strap to car computer

Note
1x bolt, T25, 4 Nm, Bolt located, Install new bolt
Install the bolts (x2) that attach the car computer to the bulkhead.

Note
13 mm, 15 Nm
Remove plugs from car computer coolant hoses

Note
2x plugs, Engage spring clips after removal
Secure hoses to car computer coolant inlet/outlet

Note
2x spring clips, Perform push-pull-push test to ensure the hoses are fully seated
Remove coolant bottle cap
Fill coolant bottle to base of neck as indicated
Remove absorbent material from below car computer coolant hose connection points
Fold RH main carpet back in place
Install clip securing RH front cabin carpet to body

Note
1x clip
Place vehicle in service mode through UI

Note
Select vehicle's badge icon in Controls > Software for four seconds and then type "service" into dialog box And then touch "OK"At last Select ‘X’ at top left of window to close once complete
Select "Start Coolant Air Purge" using the UI

Note
Touch 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
Install coolant bottle cap
Install fresh air intake duct

Note
1x bolt, 10mm bolt, 4 Nm, 2x clips, 1x pin, Set clips on bulkhead studs, Secure to thermal bar
Install HEPA filter assembly

Note
2x bolts, 10mm, 5 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, Rework requires new bolts
Install the rear apron.
Close the hood.
Install the RH IP air wave duct

Note
2x push clips
Install the passenger footwell air duct

Note
1x push clip
Install RH console side panel carpet

Note
12x clips, 2x locating pins, Position side panel and align the front locator, then the rear locator, Push side panel towards console to install
Connect glove box assembly connectors

Note
3x connectors, Puddle lamp harness routing prevent blocking movement of pawls
Install glove box into IP carrier

Note
3x clips
Install screws securing glove box assembly to IP carrier

Note
6x screws, T20, 2.3 Nm
Connect glove box USB cable to car computer

Note
1x connector, Connector count may vary depending from config
Install passenger knee air bag

Note
1x connector, Engage locking tab, Use caution not to damage connector/harness, Support air bag while connecting connector
Install fasteners securing passenger knee air bag to vehicle

Note
4x patch bolts, E10, 8 Nm, 2x screws, T20, 2 Nm, 1x push clip, Install new patch bolts
Position RH footwell assembly

Note
2x connectors
Secure RH footwell assembly onto IP

Note
1x screw, T20, 1.2 Nm, 1x push clip, 8x tabs, carefully align tabs and push to secure in place
Install main decor assembly

Note
2x screws, T20, 2.3 Nm, 15x clips, 1x center clip, Replace securing clips as needed
Install LH IP end cap

Note
3x clips
Install RH lower A-pillar trim

Note
6x clips, 2x locating pins, Align front locating pin first
Install clip securing RH lower A-pillar trim

Note
1x clip
Install RH IP end cap

Note
3x clips
Install RH mid A-pillar assembly

Note
1x clip, 1x tab, Align the bottom tab then push the top clip to fully seat mid A-pillar, Make sure the seal seat on top of the trim
Install RH front floor mat
Move the RH front seat to its original position.
Raise all four windows
Close all four doors

Note
If 12V is powered up, Unlatch rear doors before closing