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EVAP System

DTC P0457: Monitor ID $39: Test ID $B2

OBD Monitor ID $39 Test ID $B2 Unit and Scaling ID $FD
DTC P0457
Test Description Loose fuel cap check or large (gross) leak check of EVAP system by monitoring the fuel tank pressure sensor signal while EVAP system is decompressing.
Store Timing Normal judgement/Failure judgement
Conversion to Engineering Units Measured value: Output value (Decimal) x 0.001 (kPa)
The lowest limit value: Not applicable
The highest limit value: Output value (Decimal) x 0.001 (kPa)
DTC P0457: Monitor ID $39: Test ID $B2

OBD Monitor ID $3A Test ID $B3 Unit and Scaling ID $FD
DTC P0455
Test Description Large (gross) leak check of EVAP system by monitoring the fuel tank pressure sensor signal while EVAP system is decompressing.
Store Timing Normal judgement/Failure judgement
Conversion to Engineering Units Measured value: Output value (Decimal) x 0.001 (kPa)
The lowest limit value: Not applicable
The highest limit value: Output value (Decimal) x 0.001 (kPa)
DTC P0455: Monitor ID $3A: Test ID $BA

OBD Monitor ID $3A Test ID $BA Unit and Scaling ID $12
DTC P0455
Test Description Large (gross) leak check of EVAP system by monitoring time of the fuel tank pressure sensor value which is equal atmosphere after the engine off. (EONV)
Store Timing Failure judgement
Conversion to Engineering Units Measured value: Output value (Decimal) x 1.0 (sec.)
The lowest limit value: Not applicable
The highest limit value: Output value (Decimal) x 1.0 (sec.)
DTC P0456: Monitor ID $3C: Test ID $B4

OBD Monitor ID $3C Test ID $B4 Unit and Scaling ID $06
DTC P0456
Test Description Leak check of EVAP system by monitoring the fuel tank pressure sensor value after the engine off. (EONV)
Store Timing Normal judgement/Failure judgement
Conversion to Engineering Units Measured value: Output value (Decimal) x 0.000305
The lowest limit value: Not applicable
The highest limit value: Output value (Decimal) x 0.000305
DTC P0456: Monitor ID $3C: Test ID $B5

OBD Monitor ID $3C Test ID $B5 Unit and Scaling ID $83
DTC P0456
Test Description Leak check of EVAP system by monitoring the fuel tank pressure sensor value after the engine off. (EONV)
Store Timing Normal judgement/Failure judgement
Conversion to Engineering Units Measured value: Output value (Decimal) x 0.01
The lowest limit value: Not applicable
The highest limit value: Output value (Decimal) x 0.01
DTC P0456: Monitor ID $3C: Test ID $B6

OBD Monitor ID $3C Test ID $B6 Unit and Scaling ID $12
DTC P0456
Test Description Leak check of EVAP system by monitoring time of the fuel tank pressure sensor value which is equal atmosphere after the engine off. (EONV)
Store Timing Failure judgement
Conversion to Engineering Units Measured value: Output value (Decimal) x 1.0 (sec.)
The lowest limit value: Not applicable
The highest limit value: Output value (Decimal) x 1.0 (sec.)
DTC P0456: Monitor ID $3C: Test ID $B7

OBD Monitor ID $3C Test ID $B7 Unit and Scaling ID $10
DTC P0456
Test Description Check of fuel tank pressure sensor signal unstable after the engine off. (early EONV)
Store Timing Failure judgement
Conversion to Engineering Units Measured value: Output value (Decimal) x 1.0 (msec.)
The lowest limit value: Not applicable
The highest limit value: Output value (Decimal) x 1.0 (msec.)
DTC P0456: Monitor ID $3C: Test ID $B8

OBD Monitor ID $3C Test ID $B8 Unit and Scaling ID $FE
DTC P0456
Test Description Fuel tank pressure when tank air opened after the engine stop.
Store Timing Normal judgement/Failure judgement
Conversion to Engineering Units Measured value: Output value (Decimal) x 0.25 (Pa)
The lowest limit value: Output value (Decimal) x 0.25 (Pa)
The highest limit value: Output value (Decimal) x 0.25 (Pa)
Note for CR-V and S2000:
  1. Incorrect output, "The lowest limit value: Not applicable" may be indicated.
  2. In spite of failure condition, some generic scan tool may be output as normal condition.
DTC P0496: Monitor ID $3D: Test ID $B0

OBD Monitor ID $3D Test ID $B0 Unit and Scaling ID $FD
DTC P0496
Test Description EVAP canister purge valve "stuck open" check by monitoring fuel tank pressure sensor while the engine is running.
Store Timing Normal judgement/Failure judgement
Conversion to Engineering Units Measured value: Output value (Decimal) x 0.001 (kPa)
The lowest limit value: Output value (Decimal) x 0.001 (kPa)
The highest limit value: Not applicable
DTC P0497: Monitor ID $3D: Test ID $B1

OBD Monitor ID $3D Test ID $B1 Unit and Scaling ID $FD
DTC P0497
Test Description Purge flow check by monitoring fuel tank pressure sensor value when the EVAP canister purge valve is closed.
Store Timing Normal judgement/Failure judgement
Conversion to Engineering Units Measured value: Output value (Decimal) x 0.001 (kPa)
The lowest limit value: Not applicable
The highest limit value: Output value (Decimal) x 0.001 (kPa)
DTC P0457, P0496, P145C: Monitor ID $3D: Test ID $B9

OBD Monitor ID $3D Test ID $B9 Unit and Scaling ID $30
DTC P0457, P0496, P145C
Test Description Purge flow and/or EVAP canister purge valve check by monitoring fuel tank pressure sensor value while the engine is running.
Store Timing Normal judgement/Failure judgement
Conversion to Engineering Units Measured value: Output value (Decimal) x 0.001526 (%)
The lowest limit value: Not applicable
The highest limit value: Output value (Decimal) x 0.001526 (%)
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