Tesla Model 3: HV Header - HV Battery (Remove and Replace)

HV Header - HV Battery- Remove

SPECIAL TOOLS

Extractor, Battery HV Header, Model 3 (1140423-00-B)

Lever Lock, HV Connector, Model 3 (1140311-00-A)

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 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.

Remove

1. Perform the vehicle electrical isolation procedure. See Vehicle Electrical Isolation Procedure.
2. Remove the rear HV battery skid plate. See Skid Plate - HV Battery - Rear (Remove and Replace).

3. Release the clips that attach the RH inner HV battery return hose to the HV battery.

4. Remove the nuts that attach the rear drive unit HV electrical harness bracket to the HV battery. Torque 10 Nm

5. Release the locking tab of the rear drive unit HV electrical harness.

6. Raise the handle, and them disconnect the rear drive unit HV electrical harness from the HV battery connector.

7. Remove the bolts that attach the HV header to the HV battery.

8. Insert the extractor tool into the HV header, push the tool handle in, and pull on the header to remove it from the HV battery.

HV Header - HV Battery- Install

Install

1. Install the HV header onto the HV battery.

Note: Push and pull on the header to make sure it is secured.

2. Install and hand-tighten the bolts that attach the HV header to the HV battery
3. Tighten the bolts to proper torque.  Torque 10 Nm
4. Fully raise the handle on the rear drive unit HV electrical harness.

5. Attach the HV connector lever lock onto the back of the HV electrical harness.
6. Firmly connect the HV electrical harness to the HV battery connector.

Caution:  Make sure that the harness fits the connector squarely and tightly.

7. While pressing the harness to the connector, remove the HV connector lever lock.

8. While pressing the harness to the connector, fully lower the handle.

9. Slide the release to lock the HV electrical harness.

10. Install the nuts that attach the rear drive unit HV electrical harness bracket to the HV battery. Torque 10 Nm

11. Fasten the clips that attach the RH inner HV battery return hose to the HV battery.
12. Install the rear HV battery skid plate. See Skid Plate - HV Battery - Rear (Remove and Replace).
13. Perform a penthouse air leak test. See Penthouse Air Leak Test.
14. Connect 12V power. See 12V Power (Disconnect and Connect).