Warning — Address SoonCode: C123C

Regenerative Braking Circuit Performance Error

The electronic stability and braking network has detected an electrical discrepancy inside the isolation valve circuit assigned to regenerative deceleration blending. This breaks coordination between electronic motor braking and hydraulic friction stop loops.

Nissan Leaf (2011+)Tesla Model 3, Model X, Model S (2017+)Tesla, Nissan Model 3, Leaf (2020+)

Estimated Cost

$1,250

Repair Time

3-4 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

    Execute an explicit infotainment computer wheel reset to clear cross-module sync hiccups.

  2. 2

    Check the central low-voltage chassis ground paths under the front hood block for looseness.

  3. 3

    Connect an advanced scan tool to run a dynamic automated calibration sequence on the brake pedal travel sensor.

  4. 4

    Inspect the primary multi-pin connector at the ABS/Stability control hydraulic module shell.

  5. 5

    Flush and bleed the entire brake hydraulic fluid circuit to remove trapped air bubbles or moisture.

  6. 6

    Replace the central electronic brake booster or ABS valve actuator body assembly.

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Step-by-Step Diagnostic Wizard

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