Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 359
GD(H4DOTC)-188
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
4. DIAGNOSTIC METHOD
• Exhaust gas temperature diagnosis
Abnormality Judgment
Calculate the estimated exhaust gas temperature when the diagnostic enable condition is established. Judge
as NG when the following conditions are established.
Time Needed for Diagnosis: 14 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cy-
cles.
Normality Judgment
Judge as OK and clear the NG if the following conditions are established.
Time Needed for Diagnosis: Less than 1 second
• Idle speed diagnosis
Abnormality Judgment
Judge as NG when the following conditions are established.
Time Needed for Diagnosis: 7000 ms
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cy-
cles.
Normality Judgment
Judge as OK and clear the NG if the following conditions are established.
Time Needed for Diagnosis: 7000 ms
Judgment Value
Malfunction Criteria
Threshold Value
Estimated exhaust gas temperature
< Value of Map 4
Map 4 (Models without SI-DRIVE)
Engine coolant tem-
perature at engine
starting
–40 °C
(–40 °F)
–30 °C
(–22 °F)
–20 °C
(–4 °F)
–10 °C
(14 °F)
0 °C
(32 °F)
10 °C
(50 °F)
20 °C
(68 °F)
30 °C
(86 °F)
40 °C
(104 °F)
45 °C
(113 °F)
Threshold Value
0 °C
(32 °F)
0 °C
(32 °F)
0 °C
(32 °F)
0 °C
(32 °F)
0 °C
(32 °F)
0 °C
(32 °F)
0 °C
(32 °F)
0 °C
(32 °F)
0 °C
(32 °F)
0 °C
(32 °F)
Map 4 (Models with SI-DRIVE)
Engine coolant tem-
perature at engine
starting
–40 °C
(–40 °F)
–30 °C
(–22 °F)
–20 °C
(–4 °F)
–10 °C
(14 °F)
0 °C
(32 °F)
10 °C
(50 °F)
20 °C
(68 °F)
30 °C
(86 °F)
40 °C
(104 °F)
45 °C
(113 °F)
Threshold Value
0 °C
(32 °F)
0 °C
(32 °F)
0 °C
(32 °F)
0 °C
(32 °F)
0 °C
(32 °F)
0 °C
(32 °F)
0 °C
(32 °F)
0 °C
(32 °F)
0 °C
(32 °F)
0 °C
(32 °F)
Judgment Value
Malfunction Criteria
Threshold Value
Estimated exhaust gas temperature
≥ Value of Map 4
Judgment Value
Malfunction Criteria
Threshold Value
Actual engine speed – Target engine
speed
< – 125 rpm
Judgment Value
Malfunction Criteria
Threshold Value
Actual engine speed – Target engine
speed
≥ – 125 rpm
GD(H4DOTC)-189
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
• Final ignition timing diagnosis
Abnormality Judgment
Judge as NG when the following conditions are established.
Time Needed for Diagnosis: 7000 ms
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cy-
cles.
Normality Judgment
Judge as OK and clear the NG if the following conditions are established.
Time Needed for Diagnosis: 7000 ms
DG:DTC P050B COLD START IGNITION TIMING PERFORMANCE
1. OUTLINE OF DIAGNOSIS
NOTE:
For the detection standard, refer to DTC P050A. <Ref. to GD(H4DOTC)-185, DTC P050A COLD START
IDLE AIR CONTROL SYSTEM PERFORMANCE, Diagnostic Trouble Code (DTC) Detecting Criteria.>
Judgment Value
Malfunction Criteria
Threshold Value
Final ignition timing – ignition timing during CSERS*
*: Ignition timing during CSERS (Cold Start Emission Reduction Strategy) =
Base ignition timing – retard amount
> Value of Map 5
Map 5
Engine coolant
temperature
–40 °C
(–40 °F)
–30 °C
(–22 °F)
–20 °C
(–4 °F)
–10 °C
(14 °F)
0 °C
(32 °F)
10 °C
(50 °F)
20 °C
(68 °F)
30 °C
(86 °F)
40 °C
(104 °F)
50 °C
(122 °F)
60 °C
(140 °F)
Threshold
Value
6 °CA
6 °CA
6 °CA
6 °CA
6 °CA
6 °CA
6 °CA
6 °CA
6 °CA
6 °CA
6 °CA
Judgment Value
Malfunction Criteria
Threshold Value
Final ignition timing – ignition timing during CSERS*
*: Ignition timing during CSERS (Cold Start Emission Reduction Strat-
egy) = Base ignition timing – retard amount
≤ Value of Map 5
GD(H4DOTC)-190
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
DH:DTC P0560 SYSTEM VOLTAGE
1. OUTLINE OF DIAGNOSIS
Detect the open/short circuit of back-up power supply circuit.
Judge as NG when the backup power voltage is low.
2. ENABLE CONDITIONS
3. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
4. DIAGNOSTIC METHOD
• Abnormality Judgment
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
Time Needed for Diagnosis: 2500 ms
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
• Normality Judgment
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: Less than 1 second
Secondary Parameters
Enable Conditions
None
Judgment Value
Malfunction Criteria
Threshold Value
Voltage of back-up power supply
Low
Battery voltage
≥ 10.9 V
Engine condition
After engine starting
Judgment Value
Malfunction Criteria
Threshold Value
Voltage of back-up power supply
High
Battery voltage
≥ 10.9 V
Engine condition
After engine starting
GD(H4DOTC)-191
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
DI: DTC P0604 INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY
(RAM) ERROR
1. OUTLINE OF DIAGNOSIS
Detect the malfunction of microcomputer (RAM).
When there is a problem in the main CPU normal RAM, or the sub CPU normal RAM, judge as NG. Judge
as OK when both are operating properly.
If it is possible to write data to the whole area of RAM in the initial routine, and is possible to read the same
data, it is judged as OK, and if not, NG.
2. ENABLE CONDITIONS
Diagnosis with the initial routine.
3. GENERAL DRIVING CYCLE
Perform the diagnosis as soon as the ignition switch is turned to ON.
4. DIAGNOSTIC METHOD
• Abnormality Judgment
Judge as NG when the following conditions are established.
Time Needed for Diagnosis: Less than 1 second
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
• Normality Judgment
Judge as OK and clear the NG if the following conditions are established.
Time Needed for Diagnosis: Less than 1 second
Secondary Parameters
Enable Conditions
None
Judgment Value
Malfunction Criteria
Threshold Value
Write the specified value into the RAM.
The written value can-
not be read.
Judgment Value
Malfunction Criteria
Threshold Value
Write the specified value into the RAM.
The written value can
be read.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст