Tesla Model 3: Harness - 12V Battery Ground (Remove and Replace)
Harness - 12V Battery Ground-Remove
Remove
- Remove the cowl screen panel. See
Panel - Cowl Screen (Remove and Replace).
- Remove and discard the nut that attaches the front harness ground wire
to the 12V battery ground harness, and remove the wire from the harness.
- Remove the 12V auxiliary battery. See
Battery - 12V (Remove and Replace).
- Remove the 12V battery bracket. See
Bracket - 12V Battery (RWD) (Remove and Replace).
- Remove the bolt that attaches the thermal harness cover to the front
body controller module, and then remove the cover from the module.
- Disconnect the thermal harness from the front body controller module
connector.
- Release the clip that attaches the suction/liquid lines to the body near
the TXV, and then move the electrical harness aside to gain access to the
front body controller module.
- Remove the bolts (x9) that attach the front body controller module cover
to the front body controller module, and then remove the cover.
- Remove and discard the bolt that attaches the battery ground cable to
the front body controller module, and then remove the cable.
Harness - 12V Battery Ground-Install
Install
- Install the battery ground cable to the front body controller module,
and then install a new bolt to attach the cable to the module.
Torque 8.5 Nm
- Visually inspect that the ground cables exit the front body controller
module neatly in their respective channels, and parallel to each other.
Caution:
Make sure that no cables or wires will be pinched when the front body
controller module cover is installed.
- Install the front body controller module cover to the front body
controller module, and then install the bolts (x9) that attach the cover to
the module.
Torque 6 Nm
- Connect the thermal harness to the front body controller module
connector.
- Fasten the clip that attaches the suction/liquid lines to the body near
the TXV.
- Install the thermal harness cover to the front body controller module,
and then install the bolt that attaches the cover to the module.
Torque 6 Nm
- Install the 12V battery bracket. See
Bracket - 12V Battery (RWD) (Remove and Replace).
- Install the 12V auxiliary battery. See
Battery - 12V (Remove and Replace).
- Install the front harness ground wire to the 12V battery ground harness,
and install a new nut to attach the ground wire to the ground harness.
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Torque 6 Nm
- Install the cowl screen panel. See
Panel - Cowl Screen (Remove and Replace).
READ NEXT:
Harness - 12V Battery Positive- Remove
Remove
Remove the cowl screen panel. See
Panel - Cowl Screen (Remove and Replace).
Remove the 12V auxiliary battery. See
Battery - 12V (Remove and Replace
SEE MORE:
Harness - Body - RH- Remove
Remove
Open all doors.
Place wheel chocks on both rear wheels.
Put vehicle in Neutral.
Open the trunk
Remove the 2nd row lower seat cushion. See
Seat Cushion - Lower - 2nd Row (Remove and Replace).
Remove the LH and RH trunk stops.
Remove the floor rear trunk t
Remove
Remove the mid aero shield panel. See
Panel - Aero Shield - Mid (Remove and Replace).
Release the fir tree clips that attach the coolant hoses to the LH shear
plate.
Remove and discard the HV battery breather from the LH HV battery vent
shroud assembly.
Release the fir t
Harness - 12V Battery Positive (Remove and Replace)
