OBD Guide

P24D9

EVAP System Pressure Sensor/Switch B Circuit Intermittent

P24D9 is an OBD-II diagnostic trouble code meaning: EVAP System Pressure Sensor/Switch B Circuit Intermittent. Common causes: open or short circuit in the sensor wiring harness, poor contact in the sensor connector. Estimated repair cost: $17–56.

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

Symptoms

  • Check Engine Light Is On
  • Unstable engine idling
  • Increased fuel consumption
  • The smell of gasoline in or around the car
  • Problems passing toxicity testing

Causes

  • Open or short circuit in the sensor wiring harness
  • Poor contact in the sensor connector
  • EVAP pressure sensor malfunction
  • Problems with the engine control unit (ECU)
  • EVAP system leak

How to Fix

  1. Check the wiring harness and sensor connectors for damage.
  2. Clean the contacts of the sensor connector
  3. Check the resistance and signal of the EVAP pressure sensor
  4. Replace EVAP pressure sensor if necessary
  5. Check the EVAP system for leaks

Related codes

Error P24D9 by Vehicle Brand

FAQ

What does the P24D9 code mean?

P24D9 is an OBD-II diagnostic trouble code that indicates: EVAP System Pressure Sensor/Switch B Circuit Intermittent

What causes a P24D9 error code?

The most common causes of P24D9 include: Open or short circuit in the sensor wiring harness; Poor contact in the sensor connector; EVAP pressure sensor malfunction; Problems with the engine control unit (ECU).

How do I fix a P24D9 diagnostic trouble code?

To fix P24D9: Check the wiring harness and sensor connectors for damage.. Clean the contacts of the sensor connector. Check the resistance and signal of the EVAP pressure sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P24D9?

Yes, but get it checked soon

How much does it cost to fix P24D9?

The estimated repair cost for P24D9 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat