OBD Guide

P2418

EVAP System Switching Valve Control Circuit/Open

P2418 is an OBD-II diagnostic trouble code meaning: EVAP System Switching Valve Control Circuit/Open. Common causes: open or short circuit in evap valve control circuit, evap switch valve malfunction. 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
  • Increased fuel consumption
  • Problems starting the engine
  • Unstable engine idling
  • Increased level of harmful emissions

Causes

  • Open or short circuit in EVAP valve control circuit
  • EVAP switch valve malfunction
  • Damaged wiring harness or connector
  • Problems with the engine control unit (ECU)
  • Corroded contacts or poor connection

How to Fix

  1. Check the continuity of the EVAP valve control circuit
  2. Check the resistance and operation of the EVAP valve
  3. Inspect the wiring harness and connectors for damage
  4. Check fuses and relays associated with the EVAP system
  5. If necessary, replace the EVAP valve or repair the wiring

Related codes

Error P2418 by Vehicle Brand

FAQ

What does the P2418 code mean?

P2418 is an OBD-II diagnostic trouble code that indicates: EVAP System Switching Valve Control Circuit/Open

What causes a P2418 error code?

The most common causes of P2418 include: Open or short circuit in EVAP valve control circuit; EVAP switch valve malfunction; Damaged wiring harness or connector; Problems with the engine control unit (ECU).

How do I fix a P2418 diagnostic trouble code?

To fix P2418: Check the continuity of the EVAP valve control circuit. Check the resistance and operation of the EVAP valve. Inspect the wiring harness and connectors for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2418?

Yes, but get it checked soon

How much does it cost to fix P2418?

The estimated repair cost for P2418 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat