EVAP Control System Monitor
DTC Description / Detecting Condition / Confirmation Procedure
P0441 Refer to [DTC P0441: Evaporative Emission System Purge Control Valve Malfunction (stuck in Open Position)].
P0442 Refer to [DTC P0442: Evaporative Emission Control System Small Leak Detected (1.0 mm)].
P0444 Refer to [DTC P0444: EVAP Purge Control Valve Circuit Open].
P0445 Refer to [DTC P0445: EVAP Purge Control Valve Circuit Shorted].
P0447 Refer to [DTC P0447: EVAP Vent Control Circuit Open].
P0448 Refer to [DTC P0448: EVAP Vent Control Circuit Shorted].
P0451 Refer to [DTC P0451: Fuel Tank Pressure Sensor Signal Stuck].
P0452 Refer to [DTC P0452: Fuel Tank Pressure Sensor Low Input].
P0453 Refer to [DTC P0453: Fuel Tank Pressure Sensor High Input].
P0454 Refer to [DTC P0454: Fuel Tank Pressure Sensor Signal Noise].
P0455 Refer to [DTC P0455: Evaporative Emission Control System Large Leak Detected].
P0456 Refer to [DTC P0456: Evaporative Emission Control System Small Leak Detected (0.5 mm)].
P0461 Refer to [DTC P0461: Fuel Level Sensor Circuit Rationality Check].
P0462 Refer to [DTC P0462: Fuel Level Sensor Low Input].
P0463 Refer to [DTC P0463: Fuel Level Sensor High Input].
P2242 Refer to [DTC P2422: Evaporative Emission System Vent Shut OFF Valve Malfunction (stuck in Closed Position)].
Evaporative Emission (EVAP) System (Incorrect purge Flow) Monitor
Operation
DTCs P0441
Time Length and Frequency Recurrence
Rate: 50 ms
Failure Time = 1.5 s
Enable conditions
Parameter Minimum Maximum
P0441
See conditions for very small leak detection (0.5 mm)
Model catalyst temp 85%
Malfunction Criteria and Threshold Value(s)
P0441
Open stuck CPS valve:
DTP variation > 1.6 HPa during Vapor generation phase
P0441 = Active
Note: This Diagnostic completes by the end of the 18th cycle of the FTP
Evaporative Emission (EVAP) System (1.0mm Leak Detected) Monitor
Operation
DTCs P0442
Time Length and Frequency Recurrence
Rate: 50 ms
Failure Time > 25 - 30 s Vs. fuel level
Enable conditions
Parameter Minimum Maximum
P0442
See conditions for very small leak detection (0.5 mm)
Malfunction Criteria and Threshold Value(s)
P0442
Estimated leak diameter 1.0 mm detection:
Leak diameter calculated > 0.793 mm
P0442 = Active
Note: This Diagnostic completes by the end of the 18th cycle of the FTP
Evaporative Emission (EVAP) System (Large Leak Detected) Monitor
Operation
DTCs P0455
Time Length and Frequency Recurrence
Rate: 50 ms
Failure Time > 20 s
Enable conditions
Parameter Minimum Maximum
P0455
See conditions for very small leak detection (0.5 mm)
Malfunction Criteria and Threshold Value(s)
P0455
Estimated leak diameter over 3.0 mm or tank cap missing:
Evacuation time during monitoring > 15 s
DTP variation during evacuation phase > 14.0 HPa
P0455 = Active
Note: This Diagnostic completes by the end of the 18th cycle of the FTP
Evaporative Emission (EVAP) System (0.5 mm Leak Detected) Monitor
Operation
DTCs P0456
Time Length and Frequency Recurrence
Rate: 50 ms
Disable conditions ECT fault, IAT fault, DTP fault, SOV fault, MAF/TP fault, VSS fault, Up O2 and heater faults, FSD fault, CPS plausibility fault in DC, Misfire fault, Lambda limit fault
Failure Time > 25 - 35 s Vs. fuel level
Enable conditions
Parameter Minimum Maximum
P0456
ECT 70 �C
Estimated Amb air temp 9.75 �C
Baro. 740 HPa
Fuel Tank Pressure 11 HPa 3 HPa
Engine operating state Idle
Time after start 590 s
VSS 2 km/h with idle speed control state
Canister purge loading time 0.1 15 s. (Vs. loading value) with partial TP
Malfunction Criteria and Threshold Value(s)
P0456
Estimated leak diameter 0.5 mm detection:
Leak diameter calculated > 0.421 mm
P0456 = Active
If below conditions met after EVAP diagnosis enable the diagnosis can be aborted and then, it will be retry as soon as enable condition meet.
Vapor generation high Thd > 0.03
Fuel tank pressure < 16.5 hpa
Max time over for evacuation > 11 s
Fuel level < 14 %, > 87%
Note: This Diagnostic completes by the end of the 18th cycle of the FTP
Evaporative Emission (EVAP) Purge Solenoid Control Circuit Monitor
Operation
DTCs P0444, P0445
Time Length and Frequency Recurrence
Rate: 240 ms
Failure Time > 25 s
Enable conditions
Parameter Minimum Maximum
P0444, P0445
IGN = ON
Malfunction Criteria and Threshold Value(s)
P0444
Line break:
Direct check by Hardware
P0444 = Active
P0445
Short to battery or short to ground:
Direct check by Hardware
P0445 = Active
Evaporative Emission (EVAP) Vent Solenoid Control Circuit Monitor
Operation
DTCs P0447, P0448
Time Length and Frequency Recurrence
Rate: 240 ms
Failure Time > 13 s
Enable conditions
Parameter Minimum Maximum
P0447, P0448
IGN = ON
Malfunction Criteria and Threshold Value(s)
P0447
Line break:
Direct check by Hardware
P0447 = Active
P0448
Short to battery or short to ground:
Direct check by Hardware
P0448 = Active
Fuel Tank Pressure Sensor (DTP) Performance Monitor
Operation
DTCs P0451
Time Length and Frequency Recurrence
Rate: 50 ms
Failure Time > 40 s
Enable conditions
Parameter Minimum Maximum
P0451
IGN = ON and Engine running
VSS variation 45 km/h
Canister flow variation 1.0 kg/h
Malfunction Criteria and Threshold Value(s)
P0451
DTP Constant Signal:
DTP sensor volts < 58.7 mv
P0451 = Active
Fuel Tank Pressure Sensor (DTP) Electrical Diagnosis Monitor
Operation
DTCs P0452, P0453
Time Length and Frequency Recurrence
Rate: 50 ms
Failure Time = 5 s
Enable conditions
Parameter Minimum Maximum
P0452, P0453
IGN = ON and Engine running
Malfunction Criteria and Threshold Value(s)
P0452
Short to ground:
DTP sensor volts < 0.1 V
P0452 = Active
P0453
Short to battery or line break:
DTP sensor volts > 4.9 V
P0453 = Active
Fuel Tank Pressure Sensor (DTP) Noisy Monitor
Operation
DTCs P0454
Time Length and Frequency Recurrence
Rate: 50 ms
Failure Time = 50 s
Enable conditions
Parameter Minimum Maximum
P0454
IGN = ON and Engine running
Engine state Idle control
Malfunction Criteria and Threshold Value(s)
P0454
Differential tank pressure (DTP) noise check
Difference:
DTP difference > 10 HPa
Gradient:
DTP slop > 2 HPa/sec
P0454 = Active
Evaporative Emission (EVAP) Vent System Performance (Stuck Closed) Monitor
Operation
DTCs P2422
Time Length and Frequency Recurrence
Rate: 50 ms
Failure Time > 13 s
Enable conditions
Parameter Minimum Maximum
P2422
IGN = ON and Engine running
Malfunction Criteria and Threshold Value(s)
P2422
EVAP Vent valve closed stuck:
DTP value < 30 HPa
P2422 = Active
Fuel Level Sensor Performance/Rationality Diagnosis Monitor
Operation
DTCs P0461
Time Length and Frequency Recurrence
Rate: 100 ms
Failure Time > 5 hrs (accumulation time)
Enable conditions
Parameter Minimum Maximum
P0461
IGN = ON and Engine ON
Malfunction Criteria and Threshold Value(s)
P0461
Fuel level sensor signal stuck:
Fuel Level difference > 5.88%
with Partial TP Time > 5 hrs (accumulation time)
Even if Key off and eng. Stop conditions this time keeps last value and it continues to start diagnosis again whenever new engine starts conditions meet.
Thus, it is considered valid driving cycle when accumulation timer reset
And it is reset whenever the difference is over 5.88% on normal fuel level sensor because fuel level is oscillated on vehicle driving conditions.
P0461 = Active
Note: Tank Level defaults to 50% Gauge displays Empty
Fuel Level Sensor Electrical Diagnosis Monitor
Operation
DTCs P0462, P0463
Time Length and Frequency Recurrence
Rate: 100 ms
Failure Time > 10 s
Enable conditions
Parameter Minimum Maximum
P0462, P0463
IGN = ON
System Voltage Faults None
Malfunction Criteria and Threshold Value(s)
P0462
Short to groundor line break:
FTL Volts < 0.2 V
P0462 = Active
P0463
Short to battery:
FTL Volts > 4.66 V
P0463 = Active
Note: Tank Level defaults to 50% Gauge displays�Empty
MODE $06 Data
Self diagnostic test item Test value Description Scaling
TID CID
EVAP Emission Diagnosis 85h 00h Large leak 0.00125 hpa
85h 01h Small leak, 1.0 mm 0.01618 mm
85h 02h Small leak, 0.5 mm 0.01618 mm
85h 03h CPS stuck in open position 0.00125 hpa