P2418 low

EVAP System Switching Valve Control Circuit Open

What does P2418 mean?

The P2418 code means the vehicle's onboard diagnostic system has detected: EVAP System Switching Valve Control Circuit Open. This is a low severity code.

Common Symptoms

  • Check Engine Light illuminated
  • Failed emissions test
  • No drivability symptoms
  • EVAP system monitor not completing
  • Possible faint fuel vapor smell

Probable Causes (Ranked by Likelihood)

  • Failed EVAP switching valve or solenoid Very High
  • Damaged wiring to EVAP switching valve High
  • Corroded connector at EVAP valve Moderate
  • Blown EVAP solenoid fuse Low

Step-by-Step Diagnostic Procedure

  1. Check the EVAP solenoid fuse

  2. Locate the EVAP switching valve and check its connector

  3. Measure solenoid coil resistance

  4. Inspect wiring from ECM to the EVAP valve

  5. Command the valve with a scan tool and listen for a click

Frequently Asked Questions

Can I drive with code P2418?

Yes, completely safe to drive. Only the EVAP purge system is affected and there is no impact on driving performance.

What causes P2418?

Usually a failed EVAP switching valve or open wiring. The valve is typically located near the charcoal canister or intake manifold.

Is P2418 expensive to fix?

Typically $75 to $350. EVAP solenoid valves are inexpensive parts and straightforward to replace.

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