Nissan Rogue. Manual — part 497
EC-256
< DTC/CIRCUIT DIAGNOSIS >
[QR25DE]
P0139 HO2S2
Component Inspection
INFOID:0000000011277993
1.
INSPECTION START
Do you have CONSULT?
Do you have CONSULT?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
CHECK HEATED OXYGEN SENSOR 2
With CONSULT
1. Turn ignition switch ON and select “DATA MONITOR” mode of “ENGINE” using CONSULT.
2. Start engine and warm it up to normal operating temperature.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
5. Let engine idle for 1 minute.
6. Select “FUEL INJECTION” in “ACTIVE TEST” mode of “ENGINE” using CONSULT, and select “HO2S2
(B1)” as the monitor item with CONSULT.
7. Check “HO2S2 (B1)” at idle speed when adjusting “FUEL INJECTION” to
± 25%.
“HO2S2 (B1)” should be above 0.73 V at least once when the “FUEL INJECTION” is + 25%.
“HO2S2 (B1)” should be below 0.18 V at least once when the “FUEL INJECTION” is
− 25%.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 6.
3.
CHECK HEATED OXYGEN SENSOR 2-1
Without CONSULT
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
4. Let engine idle for 1 minute.
5. Check the voltage between ECM harness connector and ground as per the following condition.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 4.
4.
CHECK HEATED OXYGEN SENSOR 2-2
Check the voltage between ECM harness connector and ground as per the following condition.
JPBIA5998GB
ECM
Condition
Voltage
Connector
+
−
Terminal
F51
22
23
Revving up to 4,000 rpm under no
load at least 10 times
The voltage should be above 0.73 V
at least once during this procedure.
The voltage should be below 0.18 V
at least once during this procedure.
P0139 HO2S2
EC-257
< DTC/CIRCUIT DIAGNOSIS >
[QR25DE]
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EC
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Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 5.
5.
CHECK HEATED OXYGEN SENSOR 2-3
Check the voltage between ECM harness connector and ground as per the following condition.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 6.
6.
REPLACE HEATED OXYGEN SENSOR 2
Replace heated oxygen sensor 2. Refer to
.
CAUTION:
• Discard any sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard
surface such as a concrete floor; use a new one.
• Before installing new sensor, clean exhaust system threads using Oxygen Sensor Thread Cleaner
[commercial service tool (J-43897-18 or J43897-12)] and approved Anti-seize Lubricant (commercial
service tool).
>> INSPECTION END
ECM
Condition
Voltage
Connector
+
−
Terminal
F51
22
23
Keeping engine speed at idle for 10
minutes
The voltage should be above 0.73 V
at least once during this procedure.
The voltage should be below 0.18 V
at least once during this procedure.
ECM
Condition
Voltage
Connector
+
−
Terminal
F51
22
23
Coasting from 80 km/h (50 MPH) in
D position
The voltage should be above 0.73 V
at least once during this procedure.
The voltage should be below 0.18 V
at least once during this procedure.
EC-258
< DTC/CIRCUIT DIAGNOSIS >
[QR25DE]
P014C, P014D, P015A, P015B, A/F SENSOR 1
P014C, P014D, P015A, P015B, A/F SENSOR 1
DTC Description
INFOID:0000000011277994
DTC DETECTION LOGIC
To judge malfunctions, this diagnosis measures response time of the A/F signal computed by ECM from the A/
F sensor 1 signal. The time is compensated by engine operating (speed and load), fuel feedback control con-
stant, and the A/F sensor 1 temperature index. Judgment is based on whether the compensated time (the A/F
signal cycling time index) is inordinately long or not.
POSSIBLE CAUSE
• Harness or connectors (The A/F sensor 1 circuit is open or shorted.)
• A/F sensor 1
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.
Do you have CONSULT?
YES
>> GO TO 2.
NO
>> GO TO 6.
2.
PERFORM DTC CONFIRMATION PROCEDURE-1
With CONSULT
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1minute under no load.
6. Let engine idle for 1 minute.
7. Increase the engine speed up to about 3,600 rpm and keep it for 10 seconds.
8. Fully release accelerator pedal and then let engine idle for about 1 minute.
9. Check the items status of “DATA MONITOR” as follows.
NOTE:
If “PRSNT” changed to “ABSNT”, refer to
EC-160, "Component Function Check"
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P014C
A/F SENSOR1 (B1)
(O2 sensor slow response - rich to lean
bank 1 sensor 1)
• The response time of a A/F sensor 1 signal delays more than the speci-
fied time computed by ECM.
P014D
A/F SENSOR1 (B1)
(O2 sensor slow response - lean to rich
bank 1 sensor 1)
P015A
A/F SENSOR1 (B1)
(O2 sensor delayed response - rich to lean
bank 1 sensor 1)
P015B
A/F SENSOR1 (B1)
(O2 sensor delayed response - lean to rich
bank 1 sensor 1)
P014C, P014D, P015A, P015B, A/F SENSOR 1
EC-259
< DTC/CIRCUIT DIAGNOSIS >
[QR25DE]
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Is “PRSNT” displayed on CONSULT screen?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
PERFORM DTC CONFIRMATION PROCEDURE-2
With CONSULT
Perform DTC confirmation procedure-1 again.
Is “PRSNT” displayed on CONSULT screen?
YES
>> GO TO 4.
NO
>> Refer to
EC-160, "Component Function Check"
.
4.
PERFORM DTC CONFIRMATION PROCEDURE-2
With CONSULT
1. Wait for about 20 seconds at idle.
2. Check the items status of “DATA MONITOR” as follows.
NOTE:
If “CMPLT” changed to “INCMP”, refer to
EC-160, "Component Function Check"
Is “CMPLT” displayed on CONSULT screen?
YES
>> GO TO 5.
NO
>> Refer to
EC-160, "Component Function Check"
.
5.
PERFORM SELF-DIAGNOSIS
With CONSULT
Check the “SELF-DIAG RESULT”.
Is any DTC detected?
YES
>> Proceed to
.
NO
>> INSPECTION END
6.
CHECK AIR-FUEL RATIO SELF-LEARNING VALUE
With GST
1. Start engine and warm it up to normal operating temperature.
2. Select Service $01 with GST.
3. Calculate the total value of “Short term fuel trim” and “Long term fuel trim” indications.
Is the total percentage within
±15%?
YES
>> GO TO 8.
NO
>> GO TO 7.
7.
DETECT MALFUNCTIONING PART
Check the following.
• Intake air leaks
• Exhaust gas leaks
• Incorrect fuel pressure
• Lack of fuel
• Fuel injector
• Incorrect PCV hose connection
• PCV valve
• Mass air flow sensor
Data monitor item
Status
A/F SEN1 DIAG3 (B1)
PRSNT
Data monitor item
Status
A/F SEN1 DIAG1 (B1)
CMPLT
A/F SEN1 DIAG2 (B1)
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