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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 174 (Engine Control System - SFI System Diagnostics (4 Of 4)) >> DTC P2420 Evaporative Emission System Switching Valve Control Circuit High >> DTC Summary

DTC Summary

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
DTC SUMMARY CHART

DTC 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 engine switch off 2 trip

HINT.

The vent valve is built into the canister pump module

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