15/12/2023 01:34:53

Fuse - Cabin Heater - HV Battery (Battery On Table) (Install)

Correction code 16304026 0.54 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.

Informational PurposesAn informational icon, calling your attention
Note
This procedure is to be performed under the condition that the HV battery is outside of the vehicle on the battery table e.g., installing the cabin heater fuse on a new HV battery.
  • 1057602-00-A Ratchet, 1/4" Sq Dr, HV Insulated
  • 1057603-00-A Ext Bar, Wobble, 1/4" Dr, HV Insulated
  • 1057604-00-A Skt, 1/4" Sq Dr, 8mm, HV Insulated
  • 1057607-00-A Magnet, Flexible, HV Insulated, 18"
  • 1127845-00-A Asy, Service Cover, Penthouse, Model 3
  • 1076927-00-A Resistance meter, microohm, Hioki RM 3548
Warning IconA warning icon, calling your attention to a possibly risky situation
Warning

Only technicians who have been trained in High Voltage Awareness and have completed all required certification courses (if applicable) are permitted to perform this procedure. Proper personal protective equipment (PPE) and insulating HV gloves with a minimum rating of class 0 (1000V) must be worn at all times a high voltage cable, busbar, or fitting is handled. Refer to Tech Note TN-15-92-003, High Voltage Awareness Care Points for additional safety information.

Install

  1. Perform a zero adjust of the Hioki resistance meter in preparation to measure resistances later in this procedure. See Resistance Meter (Zero Adjust).
  2. With the new HV battery on a battery table, remove the HV battery ancillary bay cover. See Cover - Ancillary Bay (Remove and Replace) for guidance.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    Warning
    It is not necessary to perform the electrical isolation test on the new HV battery, but continue to follow all warnings and HV safety guidance.
  3. Remove the pyrotechnic battery disconnect. See Pyrotechnic Battery Disconnect (Remove and Replace).
  4. Raise the high voltage controller, release the clips that attach the fuse access insulator to the RH ancillary bay bus cover, and remove the insulator.
  5. Install the PTC heater fuse to the RH ancillary bay bus, and then install new nuts to attach the fuse to the bus.
    4.5 Nm (3.3 lbs-ft)
  6. Use the Hioki resistance meter to measure the resistance at the HV joint between the ancillary bay bus and the LH side of the PTC heater fuse body .
    Informational PurposesAn informational icon, calling your attention
    Note
    The maximum acceptable resistance is 0.105 mΩ (105 μΩ). If the resistance is above this value, escalate a Toolbox session, as appropriate.
    Figure 1. Generic Measurement - Actual busbars and fasteners might appear different
  7. Use the Hioki resistance meter to measure the resistance at the HV joint between the RH side of the PTC heater fuse and the respective ring terminal plating.
    Informational PurposesAn informational icon, calling your attention
    Note
    The maximum acceptable resistance is 0.145 mΩ (145 μΩ). If the resistance is above this value, escalate a Toolbox session, as appropriate.
    Figure 2. Generic Measurement - Actual busbars and fasteners might appear different
  8. Install the fuse access insulator on the RH ancillary bay bus cover, fasten the clips that attach the insulator to the cover, and lower the high voltage controller.
  9. Measure the voltage across the pyrotechnic battery disconnect mount points, and then install the pyrotechnic battery disconnect. See Pyrotechnic Battery Disconnect (Remove and Replace).
  10. Install the HV battery ancillary bay cover. See Cover - Ancillary Bay (Remove and Replace) for guidance.
  11. Return to the procedure that requested installation of the cabin heater fuse.