C05B7

Brake Booster Temperature Sensor C Circuit Intermittent/Erratic

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–111 (est.)

Symptoms

Unstable operation of the brake system
Malfunction indicator light (Check Engine)
Reduced braking efficiency in some modes

Causes

Open or short circuit in the sensor circuit
Faulty brake booster temperature sensor
Poor contact in sensor nod connector
Wiring harness damage

How to Fix

Check the integrity of the sensor circuit (breaks, short circuits)
Inspect the sensor connectors for corrosion or damage.
Check the resistance of the brake booster temperature sensor
Replace sensor if necessary
Clean or replace damaged wires

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