OBD Guide

P25C7

Brake Booster Temperature Sensor A Circuit High

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine Light Is On
  • Reduced brake booster efficiency
  • Unusual behavior of the brake pedal
  • Errors in the braking system

Causes

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

How to Fix

  1. Check the integrity of the sensor wiring and connectors
  2. Measure the resistance of the temperature sensor
  3. Check the voltage in the sensor circuit
  4. Replace the brake booster temperature sensor if necessary
  5. Reset the error and check the system

Related codes

Error P25C7 by Vehicle Brand