29/09/2024 19:47:28

Sensor - Pressure and Temperature (PT) - High Pressure (Heat Pump) (Remove and Replace)

Correction code 18400302 0.30 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.

  • 2024-02-02: Added the routines per the latest validation.
  • 2023-04-04: Updated A/C oil type to be used with reference to Fluids and Capacities for A/C oil specifications.
  • 2023-03-28 Removed Toolbox routine to perform the Thermal Performance test at the end of the Installation section. This test is performed in the refrigerant recharge procedure, using the touchscreen UI.
Informational PurposesAn informational icon, calling your attention
Note
This procedure requires the A/C Refrigerant (Recovery and Recharge) procedure to be performed. If not already automatically added to the Service Visit, add correction code 18200102 as a separate activity to the Service Visit.

Torque Specifications

Table 1. Torque Specifications: Sensor - Pressure and Temperature (PT) - High Pressure (Heat Pump) (Remove and Replace)
Description Torque Value Recommended Tools Reuse/Replace Notes
High Pressure Pressure and Temperature Sensor
9 Nm (6.6 lbs-ft)
  • GEN 2 P/T SENSOR SOCKET, 24 MM
  • Flex head ratchet/flex head torque wrench
  • 6 in extension
N/A
  • Only use the special socket to remove and install this sensor
  • The sensor screws directly into the supermanifold.
Bolt that attaches the supermanifold-to-compressor A/C line to the supermanifold
22 Nm (16.2 lbs-ft)
  • 13 mm socket
  • Flex head ratchet/flex head torque wrench
  • 6 in extension
Reuse

Remove

  1. Remove the underhood storage unit. See Underhood Storage Unit (Remove and Replace).
  2. Recover the A/C refrigerant (refrigerant only). See Recovery (Heat Pump Model 3).
  3. Remove the bolt that attaches the supermanifold-to-compressor A/C line to the supermanifold.
    Tip: Use of the following tool(s) is recommended:
    • 13 mm socket
    • Flex head ratchet/flex head torque wrench
    • 6 in extension
  4. Remove the supermanifold-to-compressor A/C line from the supermanifold, and then hang it on the underhood storage unit support beam using an s-hook.
    Informational PurposesAn informational icon, calling your attention
    Note
    Carefully position the line so that oil does not drip out.
  5. Release the locking tab, and then disconnect the electrical connector from the high pressure temperature sensor.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    DO NOT push down on the red locking tab. Pull the tab away from the connector until the connector is unlocked, and then continue pulling to release the connector.
  6. Use the P/T sensor socket to remove the high pressure temperature sensor from the supermanifold.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Use only hand tools to remove the PT sensor. Impact or power tools will break the threads.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Use only the P/T sensor socket to remove the sensor. Using other tools can damage the connector housing.
    Tip: Use of the following tool(s) is recommended:
    • GEN 2 P/T SENSOR SOCKET, 24 MM
    • Flex head ratchet/flex head torque wrench
    • 6 in extension
  7. Record the part numbers and serial numbers of the old and new sensors in the repair order.

Install

  1. Lubricate the new high pressure temperature sensor threads and O-ring with the appropriate A/C oil. See Fluids and Capacities for A/C oil specifications.
  2. Install and hand-tighten the high pressure temperature sensor until the sensor O-ring just makes contact with the Supermanifold.
    Informational PurposesAn informational icon, calling your attention
    Note
    Use an inspection mirror to visualize this and subsequent steps.
  3. Manually back off and tighten the high pressure temperature sensor in an incremental manner so that the sensor O-ring properly slides into the chamfer in the Supermanifold.
  4. If the high pressure temperature sensor O-ring appears to pinch, or no longer slides into the chamfer, stop and reverse thread the sensor until the O-ring no longer appears to be pinched.
  5. Continue to back off and tighten the high pressure temperature sensor until the O-ring slides completely into the chamfer and is no longer visible.
    Informational PurposesAn informational icon, calling your attention
    Note
    There should be no gap, and the sensor body should be bottomed out against the Supermanifold.
  6. Use the P/T sensor socket to tighten the high pressure temperature sensor to the specified torque value.
    9 Nm (6.6 lbs-ft)
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Use only hand tools to install the PT sensor. Impact or power tools will break the threads.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Use only the P/T sensor socket to install the sensor. Using other tools can damage the sensor.
    Tip: Use of the following tool(s) is recommended:
    • GEN 2 P/T SENSOR SOCKET, 24 MM
    • Flex head ratchet/flex head torque wrench
    • 6 in extension
  7. Connect the electrical harness to the high pressure temperature sensor, and then engage the locking tab.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Push the red locking tab towards the connector to engage the locking mechanism. DO NOT push down or pull up on the red locking tab.
  8. Install new seal washers on the supermanifold side of the supermanifold-to-compressor A/C line, and then lubricate the washers with a small amount of the appropriate A/C oil. See Fluids and Capacities for A/C oil specifications.
  9. Position the supermanifold-to-compressor A/C line on the supermanifold, and then hand tighten the bolt that attaches the A/C line to the supermanifold.
  10. Tighten the bolt that attaches the A/C line to the supermanifold.
    22 Nm (16.2 lbs-ft)
    Tip: Use of the following tool(s) is recommended:
    • 13 mm socket
    • Flex head ratchet/flex head torque wrench
    • 6 in extension
  11. Perform the vacuum leak test and oil injection. See Vacuum Leak Test and Oil Injection (Heat Pump Model 3).
  12. Recharge the A/C refrigerant. See Recharge (Heat Pump Model 3).
  13. If a refrigerant leak detector is available, make sure that there is no leak at the high pressure temperature sensor.
  14. On the touchscreen, tap the Service Mode "wrench" (at the bottom of the touchscreen UI), and then tap Thermal > Sensors and Valves > Run Heat Pump Commissioning, click Run, and allow the routine to complete.
  15. Select Thermal > Actions, select the START next to Test Thermal Performance, click Run, and allow the routine to complete.
    Informational PurposesAn informational icon, calling your attention
    Note
    Touch Close once the routine is passed.
  16. Select Thermal > Actions, select the START next to Test HVAC Performance, click Run, and allow the routine to complete.
  17. Exit Service Mode through UI. See Service Mode.
  18. Install the underhood storage unit. See Underhood Storage Unit (Remove and Replace).
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    When installing the hood latch cover:
    • Inspect the hood latch mechanism for any foreign object that might have dropped in. If any object is found, remove it and confirm that the hood latch operates correctly.
    • Inspect the condition of the clips that attach the hood latch cover. If any clip is damaged, dislodged, or missing, install a new hood latch cover since the clips are non-serviceable parts.