DTC P0456 EVAP CONTROL SYSTEM
EC-1547
[VG33ER]
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DTC P0456 EVAP CONTROL SYSTEM
PFP:14950
On Board Diagnosis Logic
UBS00DYE
This diagnosis detects very small leaks in the EVAP line between fuel tank and EVAP canister purge volume
control solenoid valve, using the intake manifold vacuum in the same way as conventional EVAP small leak
diagnosis.
If ECM judges a leak which corresponds to a very small leak, the very small leak P0456 will be detected.
If ECM judges a leak equivalent to a small leak, EVAP small leak P0442 will be detected.
If ECM judges there are no leaks, the diagnosis will be OK.
PBIB1438E