LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2009 >> Matrix Base, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control System (2ZR-FE) >> SFI System >> DTC P2420 Evaporative Emission System Switching Valve Control Circuit High >> DTC Summary
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Summary

DTC SUMMARY

DTC No. Monitoring Item Malfunction Detection Condition Trouble Area Detection Timing Detection Logic
P2420 Vent valve stuck open (vent) Following condition met during key-off EVAP monitor:
  • EVAP pressure change when vent valve closed (ON) less than 0.3 kPa-g (2.25 mmHg-g)
  • Canister pump module (Reference orifice, leak detection pump, vent valve)
  • Connector/wire harness (Canister pump module - ECM)
  • ECM
While ignition switch off 2 trip

HINT:

The vent valve is built into the canister pump module.