Tesla Model S Owners & Service Manuals

Tesla Model S: HV Junction Box - Reed Switch - 1st Generation (Remove and Replace)

Tesla Model S (2012-2025) Service Manual / High Voltage System / HV Junction Box - Reed Switch - 1st Generation (Remove and Replace)

Note: This procedure only applies to vehicles with the 1st generation High Voltage Junction Box.

Special tools required for this procedure:

Supplier Part Number Description
Bosch 223-28550-TSL Wiha (Torque Screwdriver .1 - .6Nm)
Removal
  1. Perform the vehicle electrical isolation procedure (refer to procedure).
  2. Remove the HVJB cover (refer to procedure).
  3. Disconnect the reed switch from the master charger.

    HV Junction Box - Reed Switch - 1st Generation (Remove and Replace)

  4. Release the bolts (x2) that secure the reed switch to the HVJB (torque 0.44 Nm / 3.89 in-lbs). Remove the reed switch from the vehicle.

    HV Junction Box - Reed Switch - 1st Generation (Remove and Replace)

Installation

Installation procedure is the reverse of removal.

Caution: Use the Wiha torque screw driver or an equivalent tool to secure the reed switch to the HVJB.

    READ NEXT:

     HV Rapid Mate Vehicle Side (Remove and Replace)

    Removal Remove the HV battery assembly(refer to procedure). Lower the vehicle, but keep it in position to raise it in a later step. Remove the 2nd row seat cushion frame (refer to

     HV Harness - HVJB to Charge Port - 2nd Generation

    Warning: Only technicians who have been trained in High Voltage Awareness are permitted to perform this procedure. Proper personal protective equipment (PPE) and insulating HV gloves with a

     HV Harness - Front Drive Unit to HVJB

    Warning: Only technicians who have been trained in High Voltage Awareness are permitted to perform this procedure. Proper personal protective equipment (PPE) and insulating HV gloves with a

    SEE MORE:

     Calculating Load Limits

    1. Locate the statement "The combined weight of occupants and cargo should never exceed XXX lbs or XXX kg" on the "Tire and Loading Information" label. 2. Determine the combined weight of all occupants that will ride in the vehicle. 3. Subtract the combined weight of the occupants from XXX lbs

     Switches - Steering Wheel (Remove and Replace)

    Removal Remove the driver's air bag Air bag - Driver's (Remove and Replace). Place the driver's air bag assembly on a soft clean surface with the backside of the bezel facing up. Unplug the harness connectors (x2) from the back of 1 of the switches.

    © 2019-2025 Copyright www.tesms.org