Retrofit Hydraulic Control Unit Wake-Up Wire, Model 3 (Heat Pump, Li-lon Battery) Service Bulletin (SB-22-33-004)

This repair bulletin provides instructions for addressing a noted condition in Heat Pump Model 3 vehicles built without a hydraulic control unit (HCU) wake-up wire, which can cause braking and stability control alerts during power-on.

Correction: Retrofit an HCU wake-up wire to correct the issue. The required parts include an ASY, HARN, ESP wake jumper kit and a wire harness repair kit. Special tools and shop supplies are also needed.

Procedure Steps

The procedure involves removing several components, including the underhood storage unit, LV battery, and A/C compressor, in order to access the connector X151. The steps are illustrated with figures and require careful attention to detail.

Important Considerations

It is crucial to follow the correct steps and precautions to avoid damaging the vehicle or causing injury to personnel.

Manual:

Download: Retrofit Hydraulic Control Unit Wake-Up Wire, Model 3 (Heat Pump, Li-lon Battery) Service Bulletin (SB-22-33-004)

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