OBD Guide

P2405

EVAP System Leak Detection Pump Sense Circuit Low

P2405 is an OBD-II diagnostic trouble code meaning: EVAP System Leak Detection Pump Sense Circuit Low. Common causes: evap leak detection pump malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine Light Is On
  • Possible smell of gasoline
  • Increased fuel consumption (in some cases)
  • Unstable engine idling (rare)
  • Failures during overclocking (in rare cases)

Causes

  • EVAP leak detection pump malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in circuit connectors
  • Engine control unit malfunction
  • Wiring harness damage

How to Fix

  1. Check the continuity of the pump sensor circuit
  2. Inspect connectors for corrosion or damage
  3. Check the functionality of the leak detection pump
  4. Scan the control unit for additional errors
  5. Replace leak detection pump if necessary

Related codes

Error P2405 by Vehicle Brand

FAQ

What does the P2405 code mean?

P2405 is an OBD-II diagnostic trouble code that indicates: EVAP System Leak Detection Pump Sense Circuit Low

What causes a P2405 error code?

The most common causes of P2405 include: EVAP leak detection pump malfunction; Open or short circuit in the sensor circuit; Poor contact in circuit connectors; Engine control unit malfunction.

How do I fix a P2405 diagnostic trouble code?

To fix P2405: Check the continuity of the pump sensor circuit. Inspect connectors for corrosion or damage. Check the functionality of the leak detection pump. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2405?

Yes, but get it checked soon

How much does it cost to fix P2405?

The estimated repair cost for P2405 is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat