12/06/2023 22:41:51

Harness - Subassembly - Thermal (Heat Pump) (Remove and Replace)

Correction code 17101542 0.60 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.

Warning IconA warning icon, calling your attention to a possibly risky situation
CAUTION
Model 3 thermal management components operate under very tight specifications and can malfunction if Service procedures are not carefully followed. DO NOT rely on past experience with other thermal management systems; read through the Service Manual and do not deviate from the instructions.

Torque Specifications

Table 1. Torque Specifications: Harness - Subassembly - Thermal (Heat Pump) (Remove and Replace)
Description Torque Value Recommended Tools Reuse/Replace Notes
Bolts that attach the supermanifold to the shock tower brace
31 Nm (22.9 lbs-ft)
  • 15 mm socket
  • Flex head ratchet/flex head torque wrench
N/A These bolts are loosened but not removed in this procedure
Outer bolt that attaches the shock tower brace to the vehicle
62 Nm (45.7 lbs-ft)
  • 15 mm deep socket
  • Flex head ratchet/flex head torque wrench
Reuse
Inner bolt that attaches the shock tower brace to the vehicle
55 Nm (40.6 lbs-ft)
  • 15 mm deep socket
  • Flex head ratchet/flex head torque wrench
Reuse

Remove

  1. Remove the underhood storage unit. See Underhood Storage Unit (Remove and Replace).
  2. Remove the 12V auxiliary battery. See 12V/LV Battery (Remove and Replace).
  3. Remove the fresh intake duct. See Duct - Fresh Intake (Remove and Replace).
  4. Release the locking tab, and then disconnect the thermal subassembly harness from the front controller.
  5. Release the clip that attaches the thermal subassembly harness to the front harness guide cover.
  6. Release the clip that attaches the thermal subassembly harness to the RH side of the coolant bottle.
  7. Disconnect the electrical connector from the sensor on the chiller to battery hose, near the coolant bottle.
    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.
    Informational PurposesAn informational icon, calling your attention
    Note
    Note the color of the tape wrapped around the connector harness and the position of the harness in relation to the coolant bottle.
  8. Disconnect the electrical connector from the sensor on the powertrain supply hose, near the coolant bottle.
    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.
    Informational PurposesAn informational icon, calling your attention
    Note
    Note the color of the tape wrapped around the connector harness and the position of the harness in relation to the coolant bottle.
  9. Disconnect the electrical connector from the powertrain coolant pump.
    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.
  10. Disconnect the electrical connector from the battery coolant pump.
    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.
  11. Disconnect the electrical connector from the octovalve.
    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.
  12. Release the locking tab, and then disconnect the electrical connector from the coolant bottle level 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.
  13. Release the clip that attaches the electrical harness to the top of the coolant bottle.
  14. Release the clip that attaches the electrical harness to the lower LH side of the coolant bottle.
  15. Release the clip that attaches the harness to the A/C compressor HV harness bracket.
  16. Release the connector locking tab, and then disconnect the low voltage electrical connector from the A/C compressor.
    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.
  17. Release the clip that attaches the coolant hose to the A/C compressor bracket, near the ground strap attachment point.
  18. Release the locking tab, and then disconnect the electrical connector from the high pressure and 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.
    Figure 1. Some components hidden for clarity
  19. Release the locking tab, and then disconnect the electrical connector from the recirc EXV (expansion valve).
    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.
    Figure 2. Some components hidden for clarity
  20. Release the locking tab, and then disconnect the electrical connector from the liquid cooled condenser EXV.
    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.
    Figure 3. Some components hidden for clarity
  21. Release the locking tab, and then disconnect the electrical connector from the liquid cooled condenser shut off valve.
    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.
    Figure 4. Some components hidden for clarity
  22. Release the locking tab, and then disconnect the electrical connector from the right side cabin condenser EXV.
    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.
    Figure 5. Some components hidden for clarity
  23. Release the locking tab, and then disconnect the electrical connector from the high pressure and temperature subcool 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.
    Figure 6. Some components hidden for clarity
  24. Release the locking tab, and then disconnect the electrical connector from the left side cabin condenser EXV.
    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.
    Figure 7. Some components hidden for clarity
  25. Release the locking tab, and then disconnect the electrical connector from the chiller EXV.
    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.
    Figure 8. Some components hidden for clarity
  26. Release the locking tab, and then disconnect the electrical connector from the evap EXV.
    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.
    Figure 9. Some components hidden for clarity
  27. Loosen (but do not remove) the bolts (x2) that attach the supermanifold to the shock tower brace.
  28. Release the locking tab, and then disconnect the electrical connector from the low pressure and 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.
    Figure 10. Some components hidden for clarity
  29. Release the low pressure and temperature sensor harness from the harness mounts on the top and rear of the supermanifold.
    Tip: Release the harness with a flat head screwdriver. Wrap the tip with electrical tape to avoid damaging the harness.
    Figure 11. Harness mount at top of supermanifold
    Figure 12. Harness mount at rear of supermanifold
  30. Loosen, but do not remove, the inner bolts that attach the LH side of the shock tower brace to the vehicle.
    Tip: Use of the following tool(s) is recommended:
    • 15 mm deep socket
    • Flex head ratchet/flex head torque wrench
  31. Loosen, but do not remove, the outer bolt that attaches the LH side of the shock tower brace to the vehicle.
    Tip: Use of the following tool(s) is recommended:
    • 15 mm deep socket
    • Flex head ratchet/flex head torque wrench
  32. Remove the inner bolts that attach the RH side of the shock tower brace to the vehicle.
    Tip: Use of the following tool(s) is recommended:
    • 15 mm deep socket
    • Flex head ratchet/flex head torque wrench
  33. Remove the outer bolt that attaches the RH side of the shock tower brace to the vehicle.
    Tip: Use of the following tool(s) is recommended:
    • 15 mm deep socket
    • Flex head ratchet/flex head torque wrench
  34. Slide the RH side of the shock tower brace toward the front of the vehicle.
  35. Route the thermal subassembly harness toward the LH side of the vehicle, under the A/C compressor and between the coolant bottle and A/C compressor bracket.
  36. Remove the thermal subassembly harness from the vehicle by routing the harness out from between the coolant bottle and the supermanifold-to-HVAC A/C lines.

Install

  1. Position the thermal subassembly harness for installation near the front controller.
    Informational PurposesAn informational icon, calling your attention
    Note
    Position the harness clips near the supermanifold to HVAC A/C line and coolant bottle, as illustrated.
  2. Route the remaining portion of the harness between the coolant bottle and A/C compressor bracket, under the A/C compressor, and then onto the supermanifold.
  3. Connect the electrical connector on the evap EXV.
    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.
    Figure 13. Some components hidden for clarity
  4. Connect the electrical connector on the chiller EXV.
    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.
    Figure 14. Some components hidden for clarity
  5. Connect the electrical connector on the left side cabin condenser EXV.
    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.
    Figure 15. Some components hidden for clarity
  6. Connect the electrical connector on the right side cabin condenser EXV.
    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.
  7. Connect the electrical connector on the high pressure and temperature subcool sensor.
    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. Connect the electrical connector on the liquid cooled condenser shut off valve.
    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.
  9. Connect the electrical connector on the liquid cooled condenser EXV.
    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.
  10. Connect the electrical connector on the recirc EXV.
    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.
  11. Connect the electrical connector on the high pressure and temperature sensor.
    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.
  12. Install the clip that attaches the coolant hose to the A/C compressor bracket, near the ground strap attachment point.
  13. Install the clip that attaches the harness to the A/C compressor HV harness bracket.
  14. Connect the low voltage electrical connector on the A/C compressor.
    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.
  15. Release the clip that attaches the electrical harness to the lower LH side of the coolant bottle.
  16. Install the clip that attaches the electrical harness to the lower LH side of the coolant bottle.
  17. Install the clip that attaches the thermal subassembly harness to the RH side of the coolant bottle.
  18. Install the clip that attaches the thermal subassembly harness to the front harness guide cover.
  19. Connect the thermal subassembly harness to the front controller, and then engage the locking tab.
  20. Install the low pressure and temperature sensor harness on the harness mounts on the top and rear of the supermanifold.
    Tip: Install the harness with a flat head screwdriver. Wrap the tip with electrical tape to avoid damaging the harness.
    Figure 16. Harness mount at top of supermanifold
    Figure 17. Harness mount at rear of supermanifold
  21. Connect the electrical connector on the low pressure and 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.
    Figure 18. Some components hidden for clarity
  22. Torque the bolts (x2) that attach the supermanifold to the shock tower brace.
    31 Nm (22.9 lbs-ft)
    Tip: Use of the following tool(s) is recommended:
    • 15 mm socket
    • Flex head ratchet/flex head torque wrench
  23. Connect the electrical connector on the octovalve.
    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.
  24. Connect the electrical connector on the battery coolant pump.
    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.
  25. Connect the electrical connector on the powertrain coolant pump.
    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.
  26. Connect the electrical connector on the sensor on the powertrain supply hose, near the coolant bottle.
    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.
    Informational PurposesAn informational icon, calling your attention
    Note
    Match the color of the tape wrapped around the harness with the color of the sheathe near the coolant hose coupling.
  27. Connect the electrical connector on the sensor on the chiller to battery hose, near the coolant bottle.
    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.
    Informational PurposesAn informational icon, calling your attention
    Note
    Match the color of the tape wrapped around the harness with the color of the sheathe near the coolant hose coupling.
  28. Install the clip that attaches the electrical harness to the top of the coolant bottle.
  29. Connect the electrical connector on the coolant bottle level 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.
  30. Slide the RH side of the shock tower brace into position for installation.
  31. Install the outer bolt that attaches the RH side of the shock tower brace to the vehicle.
    62 Nm (45.7 lbs-ft)
    Tip: Use of the following tool(s) is recommended:
    • 15 mm deep socket
    • Flex head ratchet/flex head torque wrench
  32. Install the inner bolts that attach the RH side of the shock tower brace to the vehicle.
    55 Nm (40.6 lbs-ft)
    Tip: Use of the following tool(s) is recommended:
    • 15 mm deep socket
    • Flex head ratchet/flex head torque wrench
  33. Torque the outer bolt that attaches the LH side of the shock tower brace to the vehicle.
    62 Nm (45.7 lbs-ft)
    Tip: Use of the following tool(s) is recommended:
    • 15 mm deep socket
    • Flex head ratchet/flex head torque wrench
  34. Torque the inner bolts that attach the LH side of the shock tower brace to the vehicle.
    55 Nm (40.6 lbs-ft)
    Tip: Use of the following tool(s) is recommended:
    • 15 mm deep socket
    • Flex head ratchet/flex head torque wrench
  35. Install the 12V auxiliary battery. See 12V/LV Battery (Remove and Replace).
  36. Reconnect 12V power. See 12V/LV Power (Disconnect and Connect).
  37. Install the fresh intake duct. See Duct - Fresh Intake (Remove and Replace).
  38. Install the underhood storage unit. See Underhood Storage Unit (Remove and Replace).