Tesla Model 3: Pyrotechnic Battery Disconnect- Install
Install
- Remove the dummy disconnect from where the pyrotechnic battery
disconnect will install.
- Use an IPA wipe to clean the HV mating surfaces of the shunt, busbar,
and the pryotechnic battery disconnect.
- Position the pyrotechnic battery disconnect into the HV battery for
installation. Make sure to align the pins of the connector with the new
pyrotechnic battery disconnect.
- Install the new bolts that attach the pyrotechnic battery disconnect to
the HV battery, and then mark the bolts with a paint pen after they are
torqued.
Torque 9 Nm
- Use the Hioki resistance meter to measure the resistance at the HV joint
between the newly-installed pyrotechnic battery disconnect and the LH busbar.
Note: The maximum acceptable resistance is 0.060 mΩ (60 μΩ). If the
resistance is above this value, escalate a Toolbox session, as appropriate.
Generic Measurement - Actual busbars and fasteners might appear
different
- Use the Hioki resistance meter to measure the resistance at the HV joint
between the newly-installed pyrotechnic battery disconnect and the shunt.
Note: The maximum acceptable resistance is 0.045 mΩ (45 μΩ). If the
resistance is above this value, escalate a Toolbox session, as appropriate.
1st Generation
2nd Generation
- Install the pyrotechnic battery disconnect shunt insulator(s).
- Remove the penthouse service cover from the penthouse.
- Install the penthouse cover. See
Cover - Penthouse (Remove and Replace).
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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, Hi
SEE MORE:
Note:
This procedure was formulated using a release candidate or production
model. Follow safety requirements and use extreme caution when working on or
near high-voltage systems and components.
Remove
Open all the doors.
Lower all the windows.
Remove the 2nd row lower seat cushion. See Sea
Install
Installation procedure is the reverse of removal.
Top
Bottom
Install the front fascia grille onto the front fascia, and then fasten
the clips (x9) that attach the grille to the fascia.
Install the screws that attach the front fascia grille to the front
fascia.
Torque 1.8 Nm