OBD Guide

P25C8

Brake Booster Temperature Sensor A Circuit Intermittent/Erratic

P25C8 is an OBD-II diagnostic trouble code meaning: Brake Booster Temperature Sensor A Circuit Intermittent/Erratic. Common causes: damage to the sensor wiring harness, poor contact in the sensor connector. Estimated repair cost: $17–56.

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

Symptoms

  • Unstable operation of the brake booster
  • Check Engine light comes on
  • Increased brake pedal travel
  • Reduced braking performance

Causes

  • Damage to the sensor wiring harness
  • Poor contact in the sensor connector
  • Brake booster temperature sensor malfunction
  • Short circuit or open circuit

How to Fix

  1. Check the integrity of the sensor wiring harness
  2. Clean and check the contacts in the connector
  3. Test the sensor with a multimeter
  4. Replace the brake booster temperature sensor if necessary
  5. Repair only from an authorized dealer

Related codes

Error P25C8 by Vehicle Brand

FAQ

What does the P25C8 code mean?

P25C8 is an OBD-II diagnostic trouble code that indicates: Brake Booster Temperature Sensor A Circuit Intermittent/Erratic

What causes a P25C8 error code?

The most common causes of P25C8 include: Damage to the sensor wiring harness; Poor contact in the sensor connector; Brake booster temperature sensor malfunction; Short circuit or open circuit.

How do I fix a P25C8 diagnostic trouble code?

To fix P25C8: Check the integrity of the sensor wiring harness. Clean and check the contacts in the connector. Test the sensor with a multimeter. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P25C8?

Limited driving only, diagnose soon

How much does it cost to fix P25C8?

The estimated repair cost for P25C8 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat