Low — MonitorCode: B1023

Body Control Actuator Hardware Fault

The central body control module has detected an electrical open or short circuit inside one of its physical electronic actuator loops. This typically stops minor comfort systems from functioning, such as automated vent flaps, electronic glovebox latches, or steering column adjusters.

Tesla Model Y (2020+)Tesla Model 3, Model X, Model S (2017+)Tesla Model 3, Model S, Model X, Model Y (2020+)

Estimated Cost

$310

Repair Time

1-2 hours

Difficulty

Shop Recommended

Can I Fix This Myself?

Professional Service Recommended

This repair involves high-voltage components or specialized equipment.

What professionals will use:

Professional scan toolHydraulic liftHigh-voltage safety PPE

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Step-by-Step Fix Instructions

  1. 1

    Complete a standard deep system infotainment restart to rule out transient control chip hangs.

  2. 2

    Use a specialized bidirectional scanner to test individual actuator movement signals manually.

  3. 3

    Gain access to the lower dash or console trim panel covering the uncommunicative actuator motor.

  4. 4

    Unplug and spray quick-drying contact cleaner into the low-voltage logic wire harness connection.

  5. 5

    Check pin continuity with a multimeter to ensure the wiring harness isn't pinched or raw against metal frames.

  6. 6

    Replace the mechanical body control actuator motor unit and run a software recalibration sweep.

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Step-by-Step Diagnostic Wizard

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