Subaru IMPREZA GD 2007 Series Manual page 1858

asieps_tobira_IM_US.book 67 ページ ２０１２年１月１７日 火曜日 午後３時４８分
Diagnostic Trouble Code (DTC) Detecting Criteria
4. GENERAL DRIVING CYCLE
After starting the engine, continuously perform the diagnosis with the same engine condition.
5. DIAGNOSTIC METHOD
Abnormality Judgment
Judge as NG when the continuous time of meeting the following conditions is the predetermined time or
more. Judge as OK when the following conditions are not established.
Judgment Value
Malfunction Criteria
High side
Maximum output voltage without continuity ≥ 1200 mV
Low side
Minimum output voltage without continuity < 30 mV
Time Needed for Diagnosis
High side: 2.5 seconds
Low side 1: 20 seconds
Low side 2: 40 seconds
Low side 3: See the Map.
Map
Fuel Cut Time (Second)
0
2
10
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in two continuous driving
cycles.
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
8. FAIL SAFE
Sub feedback control: Not allowed
9. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)
AE:DTC P0138 O2 SENSOR CIRCUIT HIGH VOLTAGE (BANK 1 SENSOR 2)
1. OUTLINE OF DIAGNOSIS
NOTE:
For the detection standard, refer to DTC P0137. <Ref. to GD(H4DOTC)-65, DTC P0137 O2 SENSOR CIR-
CUIT LOW VOLTAGE (BANK 1 SENSOR 2), Diagnostic Trouble Code (DTC) Detecting Criteria.>
Threshold Value
P0138
P0137
Time needed for diag-
nosis (second)
40
40
60
GD(H4DOTC)-67
GENERAL DESCRIPTION
DTC