C05D5

Brake Master Cylinder Cut Off Valve

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

The brake system fault indicator is on
Reduced braking performance
Uneven braking

Causes

Open or short circuit in wiring harness
Solenoid valve malfunction
Problems with the brake system control unit
Contact corrosion

How to Fix

Check wiring harness for damage
Check valve resistance
Inspect contacts for corrosion
If necessary, replace the shut-off valve

Related codes

C05D0 C05D1 C05D2