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Home >> Lexus >> 2006 >> IS 250 RWD, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (Engine Control System (2GR-FSE)) >> SFI System >> DTC P2419 Evaporative Emission System Switching Valve Control Circuit Low; DTC P2420 Evaporative Emission System Switching Valve Control Circuit High >> DTC Summary

DTC Summary

WARNING: This page is about a different car, the 2006 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION CONDITION AND TROUBLE AREA

DTC No. Monitoring Item DTC Detection Condition Trouble Area Detection Timing Detection Logic
P2419 Vent valve stuck closed P043E, P043F, P2401, P2402, P2419 are present when one of the following conditions is met during key-off EVAP monitor:
  • EVAP pressure just after reference pressure measurement more than 755 mmHg
  • Reference pressure less than 730 mmHg
  • Reference pressure more than 755 mmHg
  • Reference pressure is not saturated
  • Reference pressures difference between first and second 5.3 mmHg or more
NOTE: These valves are typical
  • Pump module (0.02 inch orifice, vacuum pump, vent valve)
  • Connector / wire harness (Pump module - ECM)
  • ECM
 Engine switch off 2 trips
P2420 Vent valve stuck open (vent) The following condition is met during key-off EVAP monitor:
  • EVAP pressure change when vent valve is closed (ON) less than 2.3 mmHg
  • Pump module (0.02 inch orifice, vacuum pump, vent valve)
  • Connector / wire harness (Pump module - ECM)
  • ECM
 Engine switch off 2 trips
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