OBD Guide

P24BC

EVAP System Leak Detection Pump Pressure Sensor Circuit Intermittent

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine Light Is On
  • Problems starting the engine
  • Increased fuel consumption
  • Unstable engine idling
  • Smell of fuel in the cabin

Causes

  • Open or short circuit in the sensor circuit
  • EVAP pump pressure sensor malfunction
  • Wiring harness damage
  • Problems with the EVAP system pump
  • Contact corrosion

How to Fix

  1. Check the sensor circuit for open circuit and short circuit
  2. Check the resistance of the EVAP pump pressure sensor
  3. Inspect the wiring harness for damage
  4. Replace EVAP pump pressure sensor if necessary
  5. Clean contacts from corrosion

Related codes

Error P24BC by Vehicle Brand