06/11/2024 05:04:04

Sensor - Subcool - Pressure and Temperature (PT) - High Pressure (Remove and Replace)

Correction code 18400502 0.72 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.

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

Connect A/C machine to power and switch on

Note
Touch time only, Machine will run various background tasks, Wait until Main Menu comes up before continuing
Skip the following panels when prompted

Note
Use selections indicated in pictures
Perform hose flush

Note
Touch time only, Connect couplers to machine, Open couplers by turning clockwise, Using Main Menu > Next > Menu > Flush hoses > Verify hose connection, Machine will chime once process is complete
Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes): PROC_VCFRONT_X_START-THERMAL-FILL-DRAIN-REFRIGERANTvia Toolbox: (link)

Note
Select "x" at the top right of the window to close once complete, Thermal Fill Drain routine has a 5 hour time limit, After 5 hours EXV's will close and routine must be performed again, Verify EXV positions are open via Garage > Vitals > HP > Refrigerant Loop EXV, Verify LCC, CC Left, Evap, CC Right, Chiller are all at ~100%. Recirc is at ~20%, LCC Solenoid is OPENED
Open hood

Note
Via center display > Quick Controls > Frunk Open
Power off vehicle via center display

Note
Controls > Safety & Security > Power Off
Remove rear underhood apron

Note
11x clips
Disconnect LV battery connector and First Responder Loop

Note
2x connectors, Lift up and release green locking tab, Pull black connector lock outwards to release connection
Remove RH underhood apron

Note
11x clips, 2x datums, Remove brush clip at hinge cover first, Take note of clip at headlamp
Remove LH underhood apron

Note
11x clips, 2x datums, Remove brush clip at hinge cover first, Take note of clip at headlamp
Remove front underhood apron

Note
12x clips, 3 datums
Remove frunk access panel

Note
3x clips, 3x hooks, 1x connector
Remove frunk carpet
Remove frunk assembly

Note
8x bolts, 10mm, 5 Nm
Release RH wiper arm hose nozzle

Note
1x hose
Release LH wiper arm hose nozzle

Note
1x hose
Remove LH wiper arm nut cover

Note
1x cover
Remove RH wiper arm nut covers

Note
2x cover
Remove RH wiper arm nuts and release assembly

Note
2x nuts, 15mm, 32 Nm, Do not flex wiper arm to remove
Remove LH wiper arm nut and release assembly

Note
1x nut, 15mm, 32 Nm, Do not flex wiper arm to remove, Lower the hood slightly to fit wiper arm removal tool
Release cowl screen washer supply hose located above LH shock tower cover

Note
1x hose
Remove LH outer hood hinge cover

Note
1x clips
Remove RH outer hood hinge cover

Note
1x clips
Remove wiper cowl screen panel

Note
4x push clips, Pull cowl up out of lower windshield channel
Remove wiper module

Note
3x bolts, 10mm, 9 Nm, 1x connector, Rotate module forward and up to access connector
Remove caps from low side and high side AC ports

Note
2x caps
Connect hoses to vehicle and perform A/C recovery

Note
Connect couplers to vehicle, Note the amount of refrigerant and oil recovered, mark oil drain bottle oil level (use a piece of tape marking the fluid level), Open couplers by turning clockwise, Using Main Menu > Recover > Verify hose connection, Machine will chime once process is complete, Vehicle may be left unattended, Note or print the amount of refrigerant and oil recovered, Refrigerant recovered should be ~2.24 lb (1.02 kg), Oil recovered should be ~0.3 oz (8.87 mL), If drained oil level increased more than 1.01 oz (30 mL) refer to drained oil loss chart https://toolbox.teslamotors.com/articles/353700
Remove AC hoses from vehicle
Remove bolt on supermanifold to compressor AC line from supermanifold

Note
1x bolt, 13mm, 22 Nm
Position supermanifold to compressor AC line away from Supermanifold

Note
Secure AC manifold line to avoid oil leaking out
Disconnect high pressure PT sub cool sensor connector

Note
1x locking electrical connector, Do not push down on Red tab, Pull red tab to disengage lock, Pull again to release connector
Remove high pressure PT sub cool sensor from Supermanifold

Note
For Sensata sensors use 24mm thin wall, For Bridgeport sensors use 21mm, 9 Nm, Must use special tool, Regular 24mm or 21mm socket will damage connector housing, High pressure PT sub cool sensor connector color is black
Document old and new part numbers and serial numbers

Note
Document part numbers and serial numbers into repair order

Install

Lubricate high pressure PT sub cool sensor threads and O-ring with ND-11 Oil
Hand start high pressure PT sub cool sensor until O-ring contacts manifold
Gradually hand tighten the high pressure PT sub cool sensor while slightly backing off to walk the O-ring into the fully seated position

Note
This will avoid pinching the O-ring on the outside edge of the manifold, which can cause a leak, Takes multiple cycles to properly seat
Torque high pressure PT sub cool sensor

Note
For Sensata sensors use 24mm thin wall, For Bridgeport sensors use 21mm, 9 Nm, Must use special tool, Regular 24mm or 21mm socket will damage connector housing, High pressure PT sub cool sensor connector color is black
Connect high pressure PT sub cool sensor connector

Note
1x electrical connector, Engage locking tab
Replace seal washers for supermanifold to compressor AC line on supermanifold side

Note
2x seal washers, Lube seal washers with ND-11 oil
Install supermanifold to compressor AC line onto supermanifold

Note
1x bolt, 13mm, 22 Nm, Hand start bolt to prevent stripped threads
Connect AC hoses to vehicle
Perform AC vacuum and run leak test

Note
Open valves, Set vacuum time to 15 minutes and leak test to ON, Machine will chime once process is complete, Vehicle may be left unattended, Verify leak test passed before continuing
Perform AC recharge

Note
Enter refrigerant and oil amount noted at AC recovery, Settings should match notes, Select Both Sides for charge, Select ND-11 MSX using bottle icon, Machine will chime once process is complete, Vehicle may be left unattended, If desired use the Dye Inject option to inject leak detection dye
Connect First Responder Loop and LV battery connector

Note
2x connectors, Secure FRL first, Seat LV battery connection and push black connector lock inwards to secure, Engage upper locking tab when fully seated
Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes):
PROC_VCFRONT_X_STOP-THERMAL-FILL-DRAIN
via Toolbox: (link)via Service Mode:
Thermal ➜ Actions ➜ Stop Thermal Fill/Drain
Thermal ➜ Coolant System ➜ Stop Coolant Fill/Drain
Thermal ➜ Refrigerant System ➜ Stop Refrigerant Fill/Drain
via Service Mode Plus:
Drive Inverter ➜ Front Drive Inverter Replacement ➜ Stop Fluid Fill/Drain
Drive Inverter ➜ Rear Drive Inverter Replacement ➜ Stop Fluid Fill/Drain
Drive Inverter ➜ Rear Left Drive Inverter Replacement ➜ Stop Fluid Fill/Drain
Drive Inverter ➜ Rear Right Drive Inverter Replacement ➜ Stop Fluid Fill/Drain
Drive Unit ➜ Front Drive Unit Replacement ➜ Stop Coolant Fill/Drain
Drive Unit ➜ Rear Drive Unit Replacement ➜ Stop Coolant Fill/Drain
Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes): TEST-SELF_VCFRONT_X_HEAT-PUMP-COMMISSIONINGvia Toolbox: (link)via Service Mode: Thermal ➜ Refrigerant System ➜ Run Heat Pump Commissioningvia Service Mode Plus: Drive Inverter ➜ Front Drive Inverter Replacement ➜ Heatpump commissioning

Note
If this routine is not run after entering Thermal Drain/Fill mode, the AC compressor operation will be blocked, Select "X" at top right of window to close once complete
Proceed with Hose Equalize steps to complete AC recharge process and follow instructions displayed on AC Machine

Note
Disconnect high side coupler from vehicle, Turn AC on, Temp setting LO, Panel mode on, Fresh air mode on, Blower speed set to 10, Verify Hose Equalize settings, Verify discharge pressure does not exceed 26 bar and suction pressure is not below 1.15 bar,
Proceed with Hose Equalize steps to complete AC recharge process and follow instructions displayed on AC Machine

Note
Remove low side coupler from vehicle, Turn vehicle off, Verify Hose Equalize settings, Machine will chime once process is complete
Install caps onto AC ports

Note
2x caps
Select ‘Actions/Autodiag’ and search for ‘Thermal Performance’
Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes):
TEST-SELF_VCFRONT_X_THERMAL-PERFORMANCE
via Toolbox: (link)via Service Mode: Thermal ➜ Actions ➜ Test Thermal Performancevia Service Mode Plus:
Drive Inverter ➜ Front Drive Inverter Replacement ➜ Thermal System Test
Drive Inverter ➜ Rear Drive Inverter Replacement ➜ Thermal System Test
Drive Inverter ➜ Rear Left Drive Inverter Replacement ➜ Thermal System Test
Drive Inverter ➜ Rear Right Drive Inverter Replacement ➜ Thermal System Test
Drive Unit ➜ Front Drive Unit Replacement ➜ Thermal System Test
Drive Unit ➜ Rear Drive Unit Replacement ➜ Thermal System Test
Note
Select "X" at top right of window to close once complete, If thermal test fails follow https://toolbox.teslamotors.com/articles/206000
Power off vehicle via center display

Note
Controls > Safety & Security > Power Off
Disconnect LV battery connector and First Responder Loop

Note
2x connectors, Lift up and release green locking tab, Pull black connector lock outwards to release connection
Install wiper module

Note
3x bolts, 10mm, 9 Nm, 1x connector, Secure connector before install, Rotate module rearward and up into place
Install wiper cowl screen panel

Note
4x push clips, Secure cowl into lower windshield channel
Secure cowl screen washer supply hose located above LH shock tower cover

Note
1x hose
Install LH outer hood hinge cover

Note
1x clips
Install RH outer hood hinge cover

Note
1x clips
Install RH wiper arm assembly and secure nuts

Note
2x nuts, 15mm, 32 Nm, Line up wiper to reference mark on windshield
Install LH wiper arm assembly and secure nut

Note
1x nut, 15mm, 32 Nm
Secure LH wiper arm hose nozzle

Note
1x hose, Hose is routed above the arm pivot
Secure RH wiper arm hose nozzle

Note
1x hose, Hose is routed below the arm pivot
Install RH wiper arm nut covers

Note
2x cover
Install LH wiper arm nut cover

Note
1x cover
Install frunk assembly

Note
8x bolts, 10mm, 5 Nm
Install frunk carpet

Note
Verify carpet is properly seated under the seal
Install frunk access panel

Note
3x clips, 3x hooks, 1x connector
Install front underhood apron

Note
12x clips, 3x datums
Install LH underhood apron

Note
11x clips, 2 datums
Install RH underhood apron

Note
11x clips, 2x datums
Connect First Responder Loop and LV battery connector

Note
2x connectors, Secure FRL first, Seat LV battery connection and push black connector lock inwards to secure, Engage upper locking tab when fully seated
Install rear underhood apron

Note
11x clips
Close hood
Calibrate the rear doors.

Note
If the "Calibration Needed" message appears on the vehicle touchscreen, touch and hold Calibrate to calibrate the rear doors.

Model X Service Manual

Sensor - Subcool - Pressure and Temperature (PT) - High Pressure (Remove and Replace)

Remove

Install

Figure 1

Figure 2

Figure 3