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Home >> Lexus >> 2005 >> RX 330 FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 537 (Engine Control System) >> SFI System >> OBD II Monitor Specifications >> Monitor Strategy
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Monitor Strategy

WARNING: This page is about a different car, the 2007 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.
MONITOR STRATEGY

Related DTCs P0450: Evaporative emission control system pressure sensor/switch chattering
P0451: Evaporative emission control system pressure sensor noise
P0451: Evaporative emission control system pressure sensor stuck
P0452: Evaporative emission control system pressure sensor/switch low input
P0453: Evaporative emission control system pressure sensor/switch high input
Required Sensors / Components Pump module
Frequency of Operation Once per driving cycle: P0451 sensor stuck
Continuous: P0451 sensor noising, P0450, P0452 and P0453
Duration Less than 15 seconds: P0451 (Pressure sensor noise)
Within 2 minutes: P0451 (Pressure sensor stuck)
0.5 seconds: P0450, P0452, P0453
MIL Operation Immediate: P0450, P0452, P0453
2 driving cycles: P0451
Sequence of Operation None
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