Tesla Model 3: Shunt - HV Battery (Remove and Replace)
SPECIAL TOOLS
Ratchet, 1/4" Sq Dr, HV Insulated (1057602-00-A)
Ext Bar, Wobble, 1/4" Dr, HV Insulated (1057603-00-A)
Skt, 1/4" Sq Dr, 13mm, HV Insulated (1057606-00-A)
Resistance meter, microohm, Hioki RM 3548 (1076927-00-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
- Remove the pyrotechnic battery disconnect. See
Pyrotechnic Battery Disconnect (Remove and Replace).
- Disconnect the electrical harness from the shunt connector
- Remove and discard the bolt that attaches the shunt to the busbar.
- Remove the shunt from the vehicle.
Install
- Use an IPA wipe to clean the HV mating surfaces of the shunt, busbar,
and the pryotechnic battery disconnect.
- Install the shunt to the busbar, install a new bolt to attach the shunt
to the busbar, and then mark the bolt with a paint pen after it is torqued.
Torque 9 Nm
Generic Measurement - Actual busbars and fasteners might appear
different
- Use the Hioki resistance meter to measure the resistance between the
shunt and the adjacent busbar.
Note: The maximum acceptable resistance is 0.045 mΩ (45 μΩ). If the
resistance is above this value, escalate a Toolbox session, as appropriate.
- Connect the electrical harness to the shunt connector
- Install the pyrotechnic battery disconnect. See
Pyrotechnic Battery Disconnect (Remove and Replace).
READ NEXT:
SEE MORE:
Remove
Remove the LH center console side panel carpet. See
Carpet - Side Panel - Center Console - LH (Remove and Replace).
Disconnect 12V power. See
12V Power (Disconnect and Connect).
Remove the driver footwell cover. See
Cover - Footwell - Driver (Remove and Replace).
Remove the driver k
Remove
Remove and attach the customer's belongings from the armrest, if needed.
Lower all the windows, and then move the LH and RH front seats forward.
Remove the center console lower rear panel. See
Panel - Lower Rear - Center Console (Remove and Replace).
Remove the center console air ven