Subaru LEGACY 2006 Manual page 602

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Diagnostic Trouble Code (DTC) Detecting Criteria
BX:DTC P0512 STARTER REQUEST CIRCUIT
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of starter SW.
Judge as ON NG when the starter SW signal remains ON.
2. ENABLE CONDITION
Secondary Parameters
None
3. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
4. DIAGNOSTIC METHOD
Abnormality Judgment
Judge as ON NG when the continuous time of completing the malfunction criteria below becomes more than
3 minutes.
Judgment Value
Malfunction Criteria
Engine speed
Starter OFF signal
Battery voltage
Time Needed for Diagnosis: 180 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cy-
cles.
Normality Judgment
Judge as ON OK and clear the NG when the malfunction criteria below are met.
Judgment Value
Malfunction Criteria
Starter OFF signal
Battery voltage
5. DTC CLEAR CONDITION
• When the OK idling cycle is completed 40 times in a row
• When "Clear Memory" is performed
6. MALFUNCTION INDICATOR LIGHT CLEAR CONDITION
• When the OK driving cycle is completed 3 times in a row
• When "Clear Memory" is performed
7. FAIL SAFE
None
8. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)
Enable Conditions
Threshold Value
> 500 rpm
Not detected
> 8 V
Threshold Value
Detected
> 8 V
GD(H4SO)-165
GENERAL DESCRIPTION