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 rear underhood apron. See Underhood Apron - Rear (Remove and
Replace).
Remove the cabin intake duct. See Duct - Cabin Intake (Remove and
Replace).
Remove the hood latch cover. See Cover - Hood Latch (Remove and
Replace).
Remove the underhood storage unit. See Underhoo
Install
Fasten the clips that attach the thermal beam electrical harness to the
shock tower brace.
Install the bolt that attaches the thermal beam electrical harness
ground terminal to the RH shear wall.
Torque 10 Nm
Connect the thermal beam electrical harness to the powertrain pump