Tesla Model 3: Contactor - Negative - HV Battery- Install
Install
- Use an IPA wipe to clean the high voltage mating surfaces of the HV
battery terminal, negative busbar, and the HV battery negative contactor.
- Install the HV battery negative contactor into the penthouse, and then
install the nuts that attach the contactor into the penthouse.
Torque 8 Nm
- Install a new nut to attach the HV battery negative contactor onto the
HV battery terminal, and then mark the nut 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 at the HV joint
between the HV battery negative contactor and the HV battery terminal.
Note: The maximum acceptable resistance is 0.110 mΩ (110 μΩ). If
the resistance is above this value, escalate a Toolbox session, as appropriate.
- Install a new bolt to attach the HV battery negative contactor onto the
negative 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 at the HV joint
between the HV battery negative contactor and the negative 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.
- Install the insulator caps to the HV battery negative contactor.
- Connect the electrical harness to the HV battery negative contactor
connectors.
- Install the clip that attaches the HV battery penthouse harness to the
HV battery fast charge contactor.
- Install the pyrotechnic battery disconnect into the penthouse. See
Pyrotechnic Battery Disconnect (Remove and Replace).
READ NEXT:
SPECIAL TOOLS
Ratchet, 1/4" Sq Dr, HV Insulated (1057602-00-A)
Ext Bar, Wobble, 1/4" Dr, HV Insulated (1057603-00-A)
Magnet, Flexible, HV Insulated, 18" (1057607-00-A)
Socket, 1/4" Dr, Deep,10 mm,Th
Install
Caution:
Replace all patchbolts.
Replace all nyloc nuts.
Use an IPA wipe to clean the high voltage mating surfaces of the HV
battery terminal, positive busbar, and the HV battery posit
SEE MORE:
Remove
Open the rear trunk.
Lift up the trunk floor trim and remove it from the vehicle.
Tip:
Use the pull tab located at the rear edge of the trunk floor trim.
Install
Installation procedure is the reverse of removal.
Remove
Remove the LH and RH instrument panel end caps. See End Cap - Instrument
Panel - LH (Remove and Replace).
Remove the LH and RH mid A-pillar trims. See Trim - A-Pillar - Middle -
LH (Remove and Replace).
Remove the LH and RH upper A-pillar trims. See Trim - A-Pillar - Upper -
LH (R