OBD Guide

C0642

Brake Pressure Sensor K Circuit High

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

Symptoms

  • ABS/ESC indicator is on
  • Deterioration in braking performance
  • Unusual behavior of the stabilization system

Causes

  • Brake pressure sensor fault K
  • Open or short circuit in the sensor circuit
  • Problems with the brake ECU
  • Corrosion or poor contact in connectors

How to Fix

  1. Check the continuity of the brake pressure sensor circuit K
  2. Check the resistance and voltage at the sensor
  3. Inspect connectors and wires for damage
  4. Replace sensor if necessary
  5. Reset the error code and check the system

Related codes

Error C0642 by Vehicle Brand