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Home >> Lexus >> 2017 >> IS 300 F Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Engine Control System (4GR-FSE) - Diagnostic Codes (5 Of 5) & Circuit Tests) >> SFI System >> DTC P2420: Evaporative Emission System Switching Valve Control Circuit High [04/2013 - 06/2014] >> DTC Summary

DTC Summary

WARNING: This page is about a different car, the 2015 Lexus IS 250 and 2014 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P2420 Evaporative Emission System Switching Valve Control Circuit High Following condition met during key-off EVAP monitor:
EVAP pressure change when vent valve closed (on) less than 0.3 kPa(gauge) [2.25 mmHg(gauge)]
  • Canister pump module (reference orifice, leak detection pump, vent valve)
  • Connector/wire harness (Canister pump module - ECM)
  • Canister (filter inside canister clogged)
  • ECM
 Comes on DTC stored
DTC No. Monitoring Item Detection Timing Detection Logic
P2420 Vent valve stuck open (vent) While engine switch off 2 trip

HINT: 

The vent valve is built into the canister pump module.

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