C0569

Brake Booster Solenoid Circuit Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Increased brake pedal force
Reduced braking performance
Brake system fault light comes on
Unstable operation of the brake booster

Causes

Open or short circuit in wiring harness
Brake booster solenoid malfunction
Poor contact in connectors
Problems with the brake system control unit

How to Fix

Check the integrity of the wiring harness and connectors
Test solenoid resistance
Check voltage on solenoid circuit
Replace faulty solenoid if necessary
Reset the error and check the system

Related codes

C0568 C0570 P0571