OBD Guide

C0636

Brake Pressure Sensor G Circuit High

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • The brake system fault indicator is on
  • Reduced braking performance
  • False alarms of ABS or ESP systems

Causes

  • Short circuit in brake pressure sensor circuit
  • Brake pressure sensor fault G
  • Wiring harness damage
  • Connector problems or contact corrosion
  • ECU malfunction

How to Fix

  1. Check the integrity of the wiring harness and sensor connectors
  2. Measure the resistance of the brake pressure sensor G
  3. Check the voltage and continuity of the sensor circuit
  4. Replace the brake pressure sensor if it is faulty
  5. Clean or replace connectors if corroded
  6. Check the ECU for errors

Related codes

Error C0636 by Vehicle Brand