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 malfunction criteria below
are completed.
Judgment
Value
|
Malfunction
Criteria
|
Threshold
Value
|
Continuous
time of completing criteria below.
|
≥ 2.5
seconds
|
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)
