2006 Lexus LS 430FACTORY OEM SERVICE PROCEDURE

Related DTCS

DTC CHART

DTC No. Monitoring Items Go To
P043E Reference orifice clogged (built into canister pump module) DTC P043E EVAPORATIVE EMISSION SYSTEM LEAK DETECTION REFERENCE ORIFICE LOW FLOW; DTC P043F EVAPORATIVE EMISSION SYSTEM REFERENCE ORIFICE HIGH FLOWΒ 
P043F Reference orifice high-flow (built into canister pump module)
P0441
  • Purge VSV stuck closed
  • Purge VSV stuck open
  • Purge flow
DTC P0441 EVAPORATIVE EMISSION CONTROL SYSTEM INCORRECT PURGE FLOWΒ 
P0450 Canister pressure sensor (built into canister pump module) voltage abnormal fluctuation DTC P0450 EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR MALFUNCTION; DTC P0451 EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR RANGE/PERFORMANCE; DTC P0452 EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR/SWITCH LOW INPUT; DTC P0453 EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR/SWITCH HIGH INPUTΒ 
P0451 Canister pressure sensor (built into canister pump module) malfunctioning
P0452 Canister pressure sensor (built into canister pump module) voltage low
P0453 Canister pressure sensor (built into canister pump module) voltage high
P0455 EVAP gross leak DTC P0450 EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR MALFUNCTION; DTC P0451 EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR RANGE/PERFORMANCE; DTC P0452 EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR/SWITCH LOW INPUT; DTC P0453 EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR/SWITCH HIGH INPUTΒ 
P0456 EVAP small leak
P2401 Leak detection pump stuck OFF (built into canister pump module) DTC P2401 EVAPORATIVE EMISSION LEAK DETECTION PUMP STUCK OFF; DTC P2402 EVAPORATIVE EMISSION LEAK DETECTION PUMP STUCK ONΒ 
P2402 Leak detection pump stuck ON (built into canister pump module)
P2419 Vent valve stuck closed (built into canister pump module) DTC P2419 EVAPORATIVE EMISSION PRESSURE SWITCHING VALVE STUCK ON; DTC P2420 EVAPORATIVE EMISSION PRESSURE SWITCHING VALVE STUCK OFFΒ 
P2420 Vent valve stuck open (vent) (built into canister pump module)
P2610 Soak timer (built into ECM) DTC P2610 ECM / PCM INTERNAL ENGINE OFF TIMER PERFORMANCEΒ 

If any EVAP system DTCs are set, the malfunctioning area can be determined using the table below.

Fig 1: EVAP System DTC Chart
G04067620Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002
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