30/11/2023 00:22:54

Sensor - Pressure and Temperature (PT) - Low Pressure (Remove and Replace)

Correction code 18400402 0.42 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.

  • 2023-11-30: Reorganized the procedure.

Remove

  1. Recover the A/C refrigerant. See Recovery.
    Informational PurposesAn informational icon, calling your attention
    Note
    Recover the refrigerant while continuing this procedure.
  2. Turn Off the AC and Blower motor
  3. Disconnect LV power. See LV Power (Disconnect and Connect).
  4. Disconnect the low pressure and temperature sensor electrical connector.
    Informational PurposesAn informational icon, calling your attention
    Note
    Do not push down on the red tab, pull the red tab to disengage the lock, pull again to disconnect the electrical connector.
  5. se the P/T sensor socket to remove the low pressure temperature sensor from the supermanifold.
    • Sensata sensor: 24mm thin wall.
    • Bridgeport sensors: 21mm with special tool.
    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.
    Informational PurposesAn informational icon, calling your attention
    Note
    Regular 24mm or 21mm socket will damage connector housing, High pressure PT sensor connector color is black
    Tip: Use of the following tool(s) is recommended:
    • PT Sensor Socket Gen 2 - 1600833-00-A/PT Sensor Socket - 1565836-00-A
    • Flex head ratchet/flex head torque wrench
    • 6 in extension
  6. Record the part numbers and serial numbers of the old and new sensors in the repair order.

Install

  1. Lubricate the low pressure and temperature sensor threads and O-ring with the appropriate A/C oil..
  2. Hand start low pressure PT sensor until O-ring contacts the manifold
  3. Hand-tighten the low 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.
  4. Manually back off and tighten the low pressure temperature sensor in an incremental manner so that the sensor O-ring properly slides into the chamfer in the supermanifold.
  5. If the low 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.
  6. Continue to back off and tighten the low 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.
  7. Use the P/T sensor socket to tighten the low pressure temperature sensor to the specified torque value.
    • Sensata sensor: 24mm thin wall.
    • Bridgeport sensors: 21mm with special tool.
    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:
    • PT Sensor Socket Gen 2 - 1600833-00-A/PT Sensor Socket - 1565836-00-A
    • Flex head ratchet/flex head torque wrench
    • 6 in extension
  8. Connect the electrical harness to the low pressure temperature sensor, and then engage the locking tab.
    Informational PurposesAn informational icon, calling your attention
    Note
    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.
  9. Perform the vacuum leak test. SeeVacuum Leak Test and Oil Injection.
  10. Recharge the A/C refrigerant. See Recharge.
  11. Connect LV power. See LV Power (Disconnect and Connect).
  12. On the touchscreen, perform the following steps:
    1. Touch Service Mode > Thermal > Refrigerant System > Stop Thermal Fill Drain to complete the "Start Thermal Fill Drain (Refrigerant Only)" routine.
      Informational PurposesAn informational icon, calling your attention
      Note
      Make sure the routine is passed, then touch OK to close it.
    2. Touch Service Mode > Thermal > Refrigerant System > Run Heat Pump Commissioning and select Run to start the "Run Heat Pump Commissioning" routine.
      Informational PurposesAn informational icon, calling your attention
      Note
      Make sure the routine is passed, then touch Close to close it.
    3. Touch Service Mode > Thermal > Actions > Test Thermal Performance and select Run to start the "Thermal System Performance Test" routine.
      Informational PurposesAn informational icon, calling your attention
      Note
      Make sure the routine is passed, then touch Close to close it.