P25C4

Brake Booster Temperature Sensor A Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine Light Is On
Incorrect operation of the brake booster
Reduced braking performance
Errors in the brake system

Causes

Brake booster temperature sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Wiring harness damage
Malfunction of the brake control module

How to Fix

Check brake booster temperature sensor
Check the integrity of the sensor circuit
Inspect connectors and contacts
Replace sensor if necessary
Check the operation of the brake control module

Related codes

P25C5 P25C3 P25C6