sensor SUBARU TRIBECA 2009 1.G Service Workshop Manual
[x] Cancel search | Manufacturer: SUBARU, Model Year: 2009, Model line: TRIBECA, Model: SUBARU TRIBECA 2009 1.GPages: 2453, PDF Size: 46.32 MB
Page 1694 of 2453
GD(H6DO)-82
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
AV:DTC P0154 O2 SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 2 SEN-
SOR 1)
1. OUTLINE OF DIAGNOSIS
NOTE:
For the diagnostic procedure, refer to DTC P0134.
AW:DTC P0157 O2 SENSOR CIRCUIT LOW VOLTAGE (BANK 2 SENSOR 2)
1. OUTLINE OF DIAGNOSIS
NOTE:
For the diagnostic procedure, refer to DTC P0137.
AX:DTC P0158 O2 SENSOR CIRCUIT HIGH VOLTAGE (BANK 2 SENSOR 2)
1. OUTLINE OF DIAGNOSIS
NOTE:
For the diagnostic procedure, refer to DTC P0137.
AY:DTC P0159 O2 SENSOR CIRCUIT SLOW RESPONSE (BANK 2 SENSOR 2)
1. OUTLINE OF DIAGNOSIS
NOTE:
For the diagnostic procedure, refer to DTC P0139.
AZ:DTC P0160 O2 SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 2 SEN-
SOR 2)
1. OUTLINE OF DIAGNOSIS
NOTE:
For the diagnostic procedure, refer to DTC P0140.
Page 1695 of 2453
GD(H6DO)-83
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
BA:DTC P0171 SYSTEM TOO LEAN (BANK 1)
1. OUTLINE OF DIAGNOSIS
Detect fuel system malfunction by the amount of main feedback control.
Diagnostic method
Fuel system is diagnosed by comparing the target air fuel ratio calculated by ECM with the actual air fuel ra-
tio measured by sensor.
2. ENABLE CONDITIONS
3. GENERAL DRIVING CYCLE
Perform the diagnosis continuously at idling or at a constant speed after warming up the engine.
4. DIAGNOSTIC METHOD
Abnormality Judgment
Compare the diagnosed value (fsobd) with the threshold value, and if a condition where the malfunction cri-
teria below are met continues for more than 50 seconds, judge that there is a fault in the fuel system.
Time Needed for Diagnosis: 10 seconds × 5 times
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cy-
cles.
Normality Judgment
Judge as OK when the malfunction criteria below are completed for 10 seconds or more.
Secondary Parameters Enable Conditions
A/F main learning system In operation
Engine coolant temperature≥ 75°C (167°F)
Engine load≤ 0.02 g/rev
Intake air flow≥ Map 5
Map 5
Engine RPM (rpm) idle 700 1000 1500 2000 2500 3000 3500 4000 4500 5000
Measured value (g(oz)/rev) NA0.357
(0.013)
0.25
(0.009)
0.25
(0.009)
0.317
(0.011)
0.326
(0.011)
0.337
(0.012)
0.397
(0.014)
0.439
(0.015)
0.454
(0.016)
0.454
(0.016)
Judgment Value
Malfunction Criteria Threshold Value
fsobd = (sglmd – tglmda) + faf + flaf≥ fsobdL1
In this case: sglmd = measured lambda,
tglmda = target lambda, faf = main feed-
back compensation coefficient (every 64
milliseconds), flaf = main feedback learn-
ing compensation coefficient
Refer to Map 4.
fsobdL1 = lean side
threshold value of
fsobd
Map 4 Threshold value for fuel system malfunction criteria
Amount of air (g(oz)/s) 0 (0)3.2
(0.113)
6.4
(0.226)
9.6
(0.339)
12.8
(0.451)
16
(0.564)
19.2
(0.677)
fsobdL1 (%) 40 40 33.2 26.5 26.5 26.5 26.5
Judgment Value
Malfunction Criteria Threshold Value
fsobd = (sglmd – tglmda) + faf + flaf < 19%
Page 1697 of 2453
GD(H6DO)-85
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
BB:DTC P0172 SYSTEM TOO RICH (BANK 1)
1. OUTLINE OF DIAGNOSIS
Detect fuel system malfunction by the amount of main feedback control.
Diagnostic method
Fuel system is diagnosed by comparing the target air fuel ratio calculated by ECM with the actual air fuel ra-
tio measured by sensor.
2. ENABLE CONDITIONS
3. GENERAL DRIVING CYCLE
Perform the diagnosis continuously at idling or at a constant speed after warming up the engine.
4. DIAGNOSTIC METHOD
Abnormality Judgment
Compare the diagnosed value (fsobd) with the threshold value, and if a condition where the malfunction cri-
teria are met continues for more than 50 seconds, judge that there is a fault in the fuel system.
Time Needed for Diagnosis: 10 seconds × 5 times
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cy-
cles.
Normality Judgment
Judge as OK when the malfunction criteria below continues for 10 seconds.
5. DTC CLEAR CONDITION
•When the OK idling cycle is completed 40 times in a row
•When “Clear Memory” is performed
Secondary Parameters Enable Conditions
A/F main learning system In operation
Engine coolant temperature≥ 75°C (167°F)
Cumulative time of canister purge after
engine start
20 seconds or more
Continuous period after canister purge
starting
30 seconds or more
Intake manifold absolute pressure≥ Map 1
Judgment Value
Malfunction Criteria Threshold Value
fsobd = (sglmd – tglmda) + faf + flaf≤ fsobdR1
In this case: sglmd = measured lambda,
tglmda = target lambda, faf = main feed-
back compensation coefficient (every 64
milliseconds), flaf = main feedback learn-
ing compensation coefficient
Refer to Map 4.
fsobdR1 = rich side
threshold value of
fsobd
Map 4
Amount of air (g(oz)/s) 0 (0)3.2
(0.113)
6.4
(0.226)
9.6
(0.339)
12.8
(0.451)
16
(0.564)
19.2
(0.677)
fsobdR1 (%) –40 –40 –31.2 –26.5 –26.5 –26.5 26.5
Judgment Value
Malfunction Criteria Threshold Value
fsobd = (sglmd – tglmda) + faf + flaf≥ –20%
Page 1699 of 2453
GD(H6DO)-87
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
BE:DTC P0181 FUEL TEMPERATURE SENSOR “A” CIRCUIT RANGE/PERFOR-
MANCE
1. OUTLINE OF DIAGNOSIS
Detect faults in the fuel temperature sensor output properties.
Diagnosis is performed in two methods; drift diagnosis and stuck diagnosis. If either is NG, judge as NG. If
both are OK, Judge as OK and clear the NG.
Drift Diagnosis
Normally fuel temperature is lower than engine coolant temperature. When the fuel temperature becomes
higher than the engine coolant temperature, the range is considered to be shifted, and judged as NG.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
(A) Resistance value (Ω)(B)Fuel temperature °C (°F)
Secondary Parameters Enable Conditions
None
EN-01700
(A)
(B)
Page 1702 of 2453
GD(H6DO)-90
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
BF:DTC P0182 FUEL TEMPERATURE SENSOR “A” CIRCUIT LOW INPUT
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of fuel temperature sensor.
Judge as NG if it is out of specification.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
5. DIAGNOSTIC METHOD
Abnormality Judgment
Judge as NG when the continuous time until completing the malfunction criteria below becomes 2.5 seconds
or more.
Time Needed for Diagnosis: 2.5 seconds
Malfunction Indicator Light: Illuminates as soon as a malfunction occurs.
Normality Judgment
Judge as OK and clear the NG when the malfunction criteria below are met.
(A) Resistance value (Ω) (B) Fuel Temperature °C (°F)
Secondary Parameters Enable Conditions
None
Judgment Value
Malfunction Criteria Threshold Value
Output voltage < 0.166 V
Battery voltage≥ 10.9 V
Judgment Value
Malfunction Criteria Threshold Value
Output voltage≥ 0.166 V
Battery voltage≥ 10.9 V
EN-01700
(A)
(B)
Page 1704 of 2453
GD(H6DO)-92
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
BG:DTC P0183 FUEL TEMPERATURE SENSOR “A” CIRCUIT HIGH INPUT
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of fuel temperature sensor.
Judge as NG if it is out of specification.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
5. DIAGNOSTIC METHOD
Abnormality Judgment
Judge as NG when the continuous time until completing the malfunction criteria below becomes 2.5 seconds
or more.
Time Needed for Diagnosis: 2.5 seconds
Malfunction Indicator Light: Illuminates as soon as a malfunction occurs.
Normality Judgment
Judge as OK and clear the NG when the malfunction criteria below are met.
(A) Resistance value (Ω)(B)Fuel temperature °C (°F)
Secondary Parameters Enable Conditions
None
Judgment Value
Malfunction Criteria Threshold Value
Output voltage≥ 4.716 V
Battery voltage≥ 10.9 V
Judgment Value
Malfunction Criteria Threshold Value
Output voltage < 4.716 V
Battery voltage≥ 10.9 V
EN-01700
(A)
(B)
Page 1706 of 2453
GD(H6DO)-94
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
BH:DTC P0196 ENGINE OIL TEMPERATURE SENSOR CIRCUIT RANGE/PER-
FORMANCE
1. OUTLINE OF DIAGNOSIS
Detect for abnormal values in the oil temperature sensor output properties.
Judge as NG when the oil temperature does not rise even though the engine is running under a condition
where it should rise.
2. ENABLE CONDITIONS
3. GENERAL DRIVING CYCLE
Perform the diagnosis continuously after starting the engine.
4. DIAGNOSTIC METHOD
Abnormality Judgment
When the following conditions are established, it is NG.
After engine start oil temperature sensor characteristic diagnosis timer (timer for diagnosis).
a. Timer stop at fuel cut.
b. During the driving conditions except a) above, timer count up by
64 milliseconds + TCILCNT milliseconds at every 64 milliseconds.
Where, TOILCNT is determined as follows,
TOILCNT = 0 at idle switch ON
For TOILCNT at Idle switch off, refer to the following table.
After engine start oil temperature characteristic diagnosis timer judgment value (t).
t = 2400000 – 60000 × Ti (t ≥ 2400000)
Ti = The lowest coolant temperature after starting the engine.
Time Needed for Diagnosis: Undecided
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cy-
cles.
Secondary Parameters Enable Conditions
Battery voltage≥ 10.9 V
Engine speed 500 rpm
Judgment Value
Malfunction Criteria Threshold Value
Engine oil temperature < 15°C (59°F)
After engine start oil temperature sensor
characteristic diagnosis timer.
≥ Judgment value for after engine
start oil temperature sensor char-
acteristic diagnosis timer
Vehicle speed km/h (MPH)
0 (0) 8 (5) 16 (10) 24 (15) 32 (20) 40 (25) 48 (30) 56 (35)
Te m p e r a -
ture
°C (°F)
–40 (–40) 0 ms 32 ms 76 ms 130 ms 149 ms 171 ms 176 ms 181 ms
–30 (–22) 67 ms 93 ms 121 ms 157 ms 170 ms 184 ms 193 ms 203 ms
–20 (–4) 98 ms 123 ms 148 ms 184 ms 193 ms 204 ms 214 ms 226 ms
–10 (14) 145 ms 166 ms 187 ms 208 ms 223 ms 239 ms 242 ms 245 ms
0 (32) 161 ms 187 ms 212 ms 243 ms 252 ms 262 ms 266 ms 270 ms
Page 1707 of 2453
GD(H6DO)-95
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
Normality Judgment
When the following conditions are established, it is OK.
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 CONDITIONS
•When the OK driving cycle is completed 3 times in a row
•When “Clear Memory” is performed
7. FAIL SAFE
Oil temperature sensor process: Engine oil temperature is fixed at 70°C (158°F).
8. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)
Judgment Value
Malfunction Criteria Threshold Value
Engine oil temperature≥ 15°C (59°F)
Page 1708 of 2453
GD(H6DO)-96
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
BI: DTC P0197 ENGINE OIL TEMPERATURE SENSOR CIRCUIT LOW
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of the oil temperature sensor.
Judge as NG when outside of the possible range.
2. ENABLE CONDITIONS
3. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
4. DIAGNOSTIC METHOD
Judge as NG when the continuous time when the following conditions are established is more than 0.5 sec-
ond. Judge as OK and clear the NG when the following conditions are not established.
Time Needed for Diagnosis: 0.5 second
Malfunction Indicator Light: Illuminates as soon as a malfunction occurs.
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 CONDITIONS
•When the OK driving cycle is completed 3 times in a row
•When “Clear Memory” is performed
7. FAIL SAFE
Oil temperature sensor process: Engine oil temperature is fixed at 70°C (158°F).
8. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)
Secondary Parameters Enable Conditions
None
Judgment Value
Malfunction Criteria Threshold Value
Output voltage≤ 0.166 V
Page 1709 of 2453
GD(H6DO)-97
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
BJ:DTC P0198 ENGINE OIL TEMPERATURE SENSOR CIRCUIT HIGH
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of the oil temperature sensor.
Judge as NG when outside of the judgment value.
2. ENABLE CONDITIONS
3. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
4. DIAGNOSTIC METHOD
Judge as NG when the continuous time when the following conditions are established is more than 0.5 sec-
ond. Judge as OK and clear the NG when the following conditions are not established.
Time Needed for Diagnosis: 0.5 second
Malfunction Indicator Light: Illuminates as soon as a malfunction occurs.
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 CONDITIONS
•When the OK driving cycle is completed 3 times in a row
•When “Clear Memory” is performed
7. FAIL SAFE
Oil temperature sensor process: Engine oil temperature is fixed at 70°C (158°F).
8. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)
Secondary Parameters Enable Conditions
None
Judgment Value
Malfunction Criteria Threshold Value
Output voltage≥ 4.716 V