Subaru IMPREZA GD 2007 Series Manual page 2017

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Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
DR:DTC P2011 INTAKE MANIFOLD RUNNER CONTROL CIRCUIT / OPEN
(BANK 2)
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of tumble generator valve motor.
Judge as NG when the open signal is sent from IC after tumble generator valve driving IC diagnosis.
2. COMPONENT DESCRIPTION
(1)
(1) Engine control module (ECM)
3. ENABLE CONDITION
Secondary Parameters
Battery voltage
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
5. DIAGNOSTIC METHOD
At the main IC, check the sent signal at each timing which occurs just before the tumble generator valve out-
put is set to ON → OFF, and judge open NG when the open NG signal is sent for two seconds. Judge as OK
and clear the NG when the OK signal is sent.
Judgment Value
Malfunction Criteria
Open NG signal input
Overcurrent NG signal input
Time Needed for Diagnosis: 2 seconds
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
6. DTC CLEAR CONDITION
• When the OK idling cycle is completed 40 times in a row
• When "Clear Memory" is performed
7. MALFUNCTION INDICATOR LIGHT CLEAR CONDITIONS
• When the OK driving cycle is completed three times in a row
• When "Clear Memory" is performed
(2) Tumble generator valve
Enable Conditions
≥ 10.9 V
Threshold Value
Low
High
GD(H4DOTC)-226
(3)
M
(2)
E
E
(3) Battery
EN-01789