14/12/2023 18:51:19

Passthrough - DCDC - LV (Cable Type) (Remove and Replace)

Correction code 1601010092 FRT 1.08 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.

  • 1057602-00-A Ratchet, 1/4" Sq Dr, HV Insulated
  • 1057606-00-A Skt, 1/4" Sq Dr, 13mm, HV Insulated
  • 1131071-00-A Dummy Disconnect, Pyro, Safety
  • 1108272-00-B Cap, Logic Conn, Inv, 3DU
  • 1076927-00-A Resistance meter, microohm, Hioki RM 3548
  • 1076927-00-A Resistance meter, microohm, Hioki RM 3548
Warning IconA warning icon, calling your attention to a possibly risky situation
Warning
Remove all jewelry (watches, bracelets, rings, necklaces, earrings, ID tags, piercings, etc.) from your person, and all objects (keys, coins, pens, pencils, tools, fasteners, etc.) from your pockets before performing any procedure that exposes you to high voltage.
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Warning
If corrective eyewear is necessary to safely perform any procedure, make sure that the eyewear is securely restrained to the head and cannot fall off.
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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.

Torque Specifications

Table 1. Torque Specifications: Passthrough - DCDC - LV (Cable Type) (Remove and Replace)
Description Torque Value Recommended Tools Reuse/Replace Notes
Nut that attaches the positive output of power conversion system cable to the HV battery at the DCDC passthrough
9 Nm (6.6 lbs-ft)
  • 4 in extension
  • 13 mm deep socket
 Replace
Bolts (x2) that attach the 12V DCDC passthrough to the ancillary bay
10 Nm (7.4 lbs-ft)
  • External Torx E10 5-Lobe
  • Insulated tools:
    • Ratchet/torque wrench
 Reuse

Remove

  1. Remove the ancillary bay cover. See Ancillary Bay Cover (Remove and Replace).
    Warning IconA warning icon, calling your attention to a possibly risky situation
    Warning
    HV insulating gloves and leather glove protectors must be worn throughout the remainder of this procedure. Do not remove gloves or protectors until otherwise noted.
  2. Remove the pyrotechnic battery disconnect. See Pyro Disconnect - HV Battery (Remove and Replace).
  3. Raise the locking tab on the 12V DCDC passthrough connector, and then remove the connector from the power conversion system.
  4. Lift up the positive 12V output cover.
  5. Remove the DCDC ground busbar. See Harness - Busbar - 12V DCDC (Remove and Replace).
  6. Remove and discard the nut that attaches the positive output of power conversion system cable to the HV battery at the DCDC passthrough, and then set the cable aside.
    Tip: Use of the following tool(s) is recommended:
    • 4 in extension
    • 13 mm deep socket
  7. Remove the bolts (x2) that attach the 12V DCDC passthrough to the ancillary bay, and then remove the 12V DCDC passthrough from the ancillary bay.
    Tip: Use of the following tool(s) is recommended:
    • External Torx E10 5-Lobe
    • Insulated tools:
      • Ratchet/torque wrench
    Warning IconA warning icon, calling your attention to a possibly risky situation
    Warning
    The video(s) included in this procedure are meant as an overview for supplemental purposes only. Follow all of the steps listed in the procedure to avoid damage to components and/or personal injury.

Install

  1. Perform a zero adjust of the Hioki resistance meter in preparation to measure resistances later in this procedure.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    Warning
    HV insulating gloves and leather glove protectors must be worn throughout the remainder of this procedure. Do not remove gloves or protectors until otherwise noted.
  2. Position the 12V DCDC passthrough into the ancillary bay, and then install the bolts (x2) that attach the 12V DCDC passthrough to the ancillary bay. Mark the bolts with a paint pen after they are torqued.
    10 Nm (7.4 lbs-ft)
    Tip: Use of the following tool(s) is recommended:
    • External Torx E10 5-Lobe
    • Insulated tools:
      • Ratchet/torque wrench
  3. Firmly connect the DCDC passthrough connector to the power conversion system, and then lower the locking tab.
  4. Install a new nut that attaches the positive output of power conversion system cable to the HV battery at the DCDC passthrough.
    9 Nm (6.6 lbs-ft)
    Tip: Use of the following tool(s) is recommended:
    • 4 in extension
    • 13 mm deep socket
  5. Put the positive 12V output cover back to its original position.
  6. Install the DCDC ground busbar. See Harness - Busbar - 12V DCDC (Remove and Replace).
  7. Measure the voltage across the pyrotechnic battery disconnect mount points, and then install the pyrotechnic battery disconnect. See Pyro Disconnect - HV Battery (Remove and Replace).
  8. Install the ancillary bay cover. See Ancillary Bay Cover (Remove and Replace).
    Informational PurposesAn informational icon, calling your attention
    Note
    Before installing the ancillary bay cover, inspect the ancillary bay cover seal and confirm there is no visual damage. If the seal is torn and/or delaminated, replace the ancillary bay cover.