OBD Guide

P25C4

Brake Booster Temperature Sensor A Circuit

P25C4 is an OBD-II diagnostic trouble code meaning: Brake Booster Temperature Sensor A Circuit. Common causes: brake booster temperature sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.

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

  1. Check brake booster temperature sensor
  2. Check the integrity of the sensor circuit
  3. Inspect connectors and contacts
  4. Replace sensor if necessary
  5. Check the operation of the brake control module

Related codes

Error P25C4 by Vehicle Brand

FAQ

What does the P25C4 code mean?

P25C4 is an OBD-II diagnostic trouble code that indicates: Brake Booster Temperature Sensor A Circuit

What causes a P25C4 error code?

The most common causes of P25C4 include: Brake booster temperature sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Wiring harness damage.

How do I fix a P25C4 diagnostic trouble code?

To fix P25C4: Check brake booster temperature sensor. Check the integrity of the sensor circuit. Inspect connectors and contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P25C4?

Limited driving only, diagnose soon

How much does it cost to fix P25C4?

The estimated repair cost for P25C4 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat