C0048

Brake Booster Travel Sensor

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Increased brake pedal travel
Reduced braking performance
Check Engine light comes on
Unstable operation of the brake system

Causes

Brake booster stroke sensor malfunction
Open or short circuit in wiring harness
Contact contamination or oxidation
Problems with the brake ECU

How to Fix

Check the brake booster stroke sensor for mechanical damage
Check the integrity of the wiring harness and contacts
Clean contacts from dirt and oxides
Replace sensor if necessary
Check the operation of the brake system after repair

Related codes

C0049 C0050 P0571