OBD Guide
ENFRDEESPT

C1142

Brake Fluid Pressure Sensor Circuit

C1142 is an OBD-II diagnostic trouble code meaning: Brake Fluid Pressure Sensor Circuit. Common causes: open or short circuit in the sensor wiring harness, malfunction of the brake fluid pressure sensor. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • The brake system fault indicator is on
  • Reduced braking performance
  • Disabling the ABS or ESP system

Causes

  • Open or short circuit in the sensor wiring harness
  • Malfunction of the brake fluid pressure sensor
  • Poor contact in the sensor connector
  • Problems with the brake ECU

How to Fix

  1. Check the integrity of the sensor wiring harness
  2. Check the sensor connector for corrosion or damage.
  3. Check the resistance of the brake fluid pressure sensor
  4. Replace sensor if necessary
  5. Clear error codes and check if error is returned

Related codes

C1140C1141C1143

FAQ

What does the C1142 code mean?

C1142 is an OBD-II diagnostic trouble code that indicates: Brake Fluid Pressure Sensor Circuit

What causes a C1142 error code?

The most common causes of C1142 include: Open or short circuit in the sensor wiring harness; Malfunction of the brake fluid pressure sensor; Poor contact in the sensor connector; Problems with the brake ECU.

How do I fix a C1142 diagnostic trouble code?

To fix C1142: Check the integrity of the sensor wiring harness. Check the sensor connector for corrosion or damage.. Check the resistance of the brake fluid pressure sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1142?

Limited driving only, diagnose soon

How much does it cost to fix C1142?

The estimated repair cost for C1142 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat