DTC P0459 EVAPORATIVE EMISSION CONTROL SYSTEM PURGE CONTROL VALVE CIRCUIT HIGH
|
|
DTC P0459 EVAPORATIVE EMISSION CONTROL SYSTEM
PURGE CONTROL VALVE CIRCUIT HIGH
|
Detect open or short circuit of purge control
solenoid valve.
Judge NG when ECM output level is different
from actual terminal level.
(A)
|
To canister
|
(B)
|
To intake
manifold
|
|
Secondary
Parameters
|
Enable
Conditions
|
Ignition
switch
|
ON
|
Battery
voltage
|
≥ 10.9 V
|
After engine
starting
|
1 second
or more
|
Always perform the diagnosis after starting
the engine.
Abnormality Judgment
Judge NG when the continuous time of completing
the malfunction criteria below becomes more than the time needed
for diagnosis (2.5 seconds).
Judgment
Value
|
Malfunction
Criteria
|
Threshold
Value
|
Duty
ratio of ‘ON’
|
≥ 25%
|
Terminal
output voltage
|
High
|
Time Needed for Diagnosis:
2.5
seconds
Malfunction Indicator
Light Illumination:
Illuminates when malfunction occurs in
2 continuous driving cycles.
Normality Judgment
Judge OK and clear NG when the malfunction
criterion below is completed.
Judgment
Value
|
Malfunction
Criteria
|
Threshold
Value
|
Terminal
output voltage
|
Low
|
|
•
|
When the OK idling cycle was completed 40 times
in a row
|
|
•
|
When “Clear Memory” was
performed
|
|
MALFUNCTION
INDICATOR LIGHT CLEAR CONDITION
|
|
•
|
When the OK driving cycle was completed 3 times
in a row
|
|
•
|
When “Clear Memory” was
performed
|
None
|
ECM OPERATION
AT DTC SETTING
|
Memorize the freeze frame data. (For test
mode $02)
