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Home >> Lexus >> 2006 >> GS 430 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (3UZ-FE) >> SFI System >> DTC P2419 Evaporative Emission Pressure Switching Valve Stuck ON; DTC P2420 Evaporative Emission Pressure Switching Valve Stuck OFF >> DTC Summary

DTC Summary

DIAGNOSTIC TROUBLE CODE CHART

DTC No. Monitoring Items Malfunction Detection Conditions Trouble Areas Detection Timings Detection Logic
P2419  Vent valve stuck closed P043E, P043F, P2401, P2402, P2419 are present when one of the following condition is met during key-off EVAP monitor:
  • EVAP pressure just after reference pressure measurement > 755 mmHg
  • Reference pressure < 730 mmHg
  • Reference pressure > 755 mmHg
  • Reference pressure is not saturated
  • Reference pressure difference between first and second >= 5.3 mmHg

HINT:
These value are typical
  • Pump module (0.02 inch orifice, vacuum pump, vent valve)
  • Connector/wire harness (pump module- ECM)
  • ECM
Engine switch off 2 trip
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) < 2.3 mmHg
  • Pump module (0.02 inch orifice, vacuum pump, vent valve)
  • Connector/wire harness (pump module- ECM)
  • ECM
Engine switch off 2 trip