Error code

OBD2 P2420

OBD2P2420
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Evaporative Emission System Switching Valve Control Circuit High.

Severity

moderateCan be driven but may cause emissions issues and potential fuel vapor leaks.

Summary

The P2420 code indicates an issue with the evaporative emission (EVAP) switching valve control circuit, specifically that it is reading too high due to a wiring problem.

Common Causes

  • Wiring short to positive
  • Faulty EVAP switching valve

Fixes

  • Replace the faulty EVAP switching valve or repair the wiring issue.

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.