OBD Guide

C0568

Brake Booster Solenoid Circuit High

C0568 is an OBD-II diagnostic trouble code meaning: Brake Booster Solenoid Circuit High. Common causes: solenoid control circuit open, oxidized contacts in the solenoid connector. Estimated repair cost: $33–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • Hard brake pedal
  • Reduced braking performance
  • Check Engine Light Is On
  • Unstable idle speed

Causes

  • Solenoid control circuit open
  • Oxidized contacts in the solenoid connector
  • Faulty brake booster solenoid
  • Short circuit in wiring harness
  • ECU problems (rare)

How to Fix

  1. Check the integrity of the wiring harness to the solenoid
  2. Check the voltage at the solenoid connector (12V when the ignition is turned on)
  3. Check the solenoid circuit for an open circuit.
  4. Clean the solenoid connector contacts
  5. Replace brake booster solenoid if necessary

Related codes

Error C0568 by Vehicle Brand

FAQ

What does the C0568 code mean?

C0568 is an OBD-II diagnostic trouble code that indicates: Brake Booster Solenoid Circuit High

What causes a C0568 error code?

The most common causes of C0568 include: Solenoid control circuit open; Oxidized contacts in the solenoid connector; Faulty brake booster solenoid; Short circuit in wiring harness.

How do I fix a C0568 diagnostic trouble code?

To fix C0568: Check the integrity of the wiring harness to the solenoid. Check the voltage at the solenoid connector (12V when the ignition is turned on). Check the solenoid circuit for an open circuit.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C0568?

Limited driving only, diagnose soon

How much does it cost to fix C0568?

The estimated repair cost for C0568 is $33–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat