Code result

C0568

Brake Booster Solenoid Circuit High

High severity

What it means

Brake booster solenoid control voltage above expected range. Boost control tracks commanded vs. actual manifold pressure; persistent deviation means wastegate, vanes, hose or actuator are not delivering the requested pressure.

Is it safe to drive?

No — stop driving

This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.

Most likely causes

  • Wiring shorted to battery

    high

    One of the most commonly reported causes for this code — check this first.

  • Connector pins corroded - high contact resistance

    low

    Less common, but worth ruling out after the more likely causes.

  • Supply wire pinched against B+ source

    low

    Less common, but worth ruling out after the more likely causes.

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