C058C

Brake Booster Motor B Position Sensor Circuit Low

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Increased brake pedal force
Reduced braking performance
The brake system fault indicator is on
Unusual noises when operating the brake booster

Causes

Open or short circuit in the sensor circuit
Brake booster motor position sensor malfunction
Wiring harness damage
Connector problems or contact corrosion
Malfunction of the brake control unit (ECU)

How to Fix

Check the continuity of the brake booster motor position sensor circuit
Inspect connectors and contacts for damage or corrosion
Check the resistance and signal of the position sensor
Replace the position sensor if it is faulty
Check and replace wiring harness if necessary
Test the brake control unit (ECU)

Related codes

C058B C058D C058E