C057D

Brake Booster Temperature Sensor Circuit B Intermittent/Erratic

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–89 (est.)

Symptoms

ESC/ABS warning light comes on
Reduced braking performance
Unstable behavior of the braking assistance system

Causes

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

How to Fix

Check the integrity of the wiring harness and connectors
Measure the resistance and voltage in the sensor circuit
Replace the brake booster temperature sensor if necessary
Clean or replace damaged connectors

Related codes

C057C C057E C0050