Subaru Legacy IV (2008 year). Service manual — part 642
GD(H6DO)-188
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
5. DIAGNOSTIC METHOD
• Abnormality Judgement
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
Time Needed for Diagnosis: 5 s × 1 time(s)
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cy-
cles.
• Normality Judgement
Judge as OK and clear the NG if the continuous time while the following conditions are established is more
than the predetermined time.
Time Needed for Diagnosis: 5 s
Judgement Value
Malfunction criteria
Threshold value
Sub feedback learning value
< –0.03
Judgement Value
Malfunction criteria
Threshold value
Sub feedback learning value
t –0.03 + 0
GD(H6DO)-189
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
EG:DTC P2097 POST CATALYST FUEL TRIM SYSTEM TOO RICH (BANK 1)
1. OUTLINE OF DIAGNOSIS
Detect the malfunction of fuel system from the size of the sub feedback learning value.
Sub feedback learning is being performed. When the learning value goes to the rich side, judge as NG.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITION
4. GENERAL DRIVING CYCLE
Perform the diagnosis continuously when the vehicle is idling or running at a constant speed of 80 km/h (50
MPH) or more.
(A)
Electromotive force
(C)
Rich
(E)
Theoretical air fuel ratio
(B)
Air fuel ratio
(D)
Lean
(F)
Comparative voltage
(1)
Atmosphere
(2)
Exhaust gas
(3)
Electromotive force
Secondary Parameters
Enable Conditions
Conditions for carrying out the sub feed-
back learning
Completed
Continuous time when all conditions are
established.
t 1 s
EN-01696
(3)
V
(1)
(2)
(2)
(E)
(F)
(C)
(B)
(D)
(A)
GD(H6DO)-190
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
5. DIAGNOSTIC METHOD
• Abnormality Judgement
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
Time Needed for Diagnosis: 5 s × 1 time(s)
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cy-
cles.
• Normality Judgement
Judge as OK and clear the NG if the continuous time while the following conditions are established is more
than the predetermined time.
Time Needed for Diagnosis: 5 s
EH:DTC P2098 POST CATALYST FUEL TRIM SYSTEM TOO LEAN BANK 2
1. OUTLINE OF DIAGNOSIS
NOTE:
For the detection standard, refer to DTC P2096. <Ref. to GD(H6DO)-187, DTC P2096 POST CATALYST
FUEL TRIM SYSTEM TOO LEAN (BANK 1), Diagnostic Trouble Code (DTC) Detecting Criteria.>
EI: DTC P2099 POST CATALYST FUEL TRIM SYSTEM TOO RICH BANK 2
1. OUTLINE OF DIAGNOSIS
NOTE:
For the detection standard, refer to DTC P2097. <Ref. to GD(H6DO)-189, DTC P2097 POST CATALYST
FUEL TRIM SYSTEM TOO RICH (BANK 1), Diagnostic Trouble Code (DTC) Detecting Criteria.>
Judgement Value
Malfunction criteria
Threshold value
Sub feedback learning value
t 0.04
Judgement Value
Malfunction criteria
Threshold value
Sub feedback learning value
< 0.04 + 0
GD(H6DO)-191
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
EJ:DTC P2101 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT RANGE/
PERFORMANCE
1. OUTLINE OF DIAGNOSIS
Judge as NG when the motor current becomes large or drive circuit is heated.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITION
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
(1)
Engine control module (ECM)
(4)
Drive circuit
(6)
Electronic throttle control relay
(2)
Detecting circuit
(5)
Temperature detection circuit
(7)
Motor
(3)
Overcurrent
detection
circuit
Secondary Parameters
Enable Conditions
Under control of electronic throttle con-
trol
ON
CPU communication line sub
o main
normal judgment
Normal
EN-01867
(3)
(2)
(5)
(2)
(4)
(1)
(6)
(7)
12V
12V
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст