Tesla Model 3 Owners & Service Manuals

Tesla Model 3: Harness - AC Inlet - HV Battery- Install

Install

  1. Use an IPA wipe to clean the mating surfaces of the positive ring terminal to the positive busbar, and the negative ring terminal to the negative busbar.

Harness - AC Inlet - HV Battery- Install

  1. Install the HV battery fast charge contactor cover onto the HV battery fast charge contactor, and fasten the clips (x8) that attach the cover to the contactor.

Harness - AC Inlet - HV Battery- Install

  1. Install new bolts to attach the positive and negative ring terminals to the busbars, and then mark the bolts with a paint pen after they are torqued. Torque 4.4 Nm

Generic Measurement - Actual busbars and fasteners might appear different Generic Measurement - Actual busbars and fasteners might appear different

  1. Use the Hioki resistance meter to measure the resistance between the copper portion of the positive ring terminal and the busbar to which that terminal is secured.

Note: The maximum acceptable resistance is 0.150 mΩ (150 μΩ). If the resistance is above this value, escalate a Toolbox session, as appropriate.

Generic Measurement - Actual busbars and fasteners might appear different Generic Measurement - Actual busbars and fasteners might appear different

  1. Use the Hioki resistance meter to measure the resistance between the copper portion of the negative ring terminal and the busbar to which that terminal is secured.

Note: The maximum acceptable resistance is 0.150 mΩ (150 μΩ). If the resistance is above this value, escalate a Toolbox session, as appropriate.

Harness - AC Inlet - HV Battery- Install

  1. Install the AC inlet terminal covers, and fasten the clips that attach the covers over the positive and negative ring terminals.
  2. Install the HV battery fast charge contactor. See Contactor - Fast Charge - HV Battery (Remove and Replace).

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