C05AF

Brake Booster Motor B Current Sensor Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Deterioration in braking performance
The brake system fault indicator is on
Unusual noises when operating the brake booster

Causes

Brake booster motor current sensor fault B
Wiring Harness Problems
Contact corrosion
Brake booster motor malfunction

How to Fix

Check wiring harness for damage
Check sensor contacts for corrosion
Replace current sensor if necessary
Check and, if necessary, replace the brake booster motor

Related codes

C05AE C05B0 C05B1