Nissan Juke F15. Manual - part 601

HO2S2

EC-1217

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

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HO2S2

Component Function Check

INFOID:0000000012198747

1.

PERFORM COMPONENT FUNCTION CHECK-I

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 2.

2.

PERFORM COMPONENT FUNCTION CHECK-II

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 3.

3.

PERFORM COMPONENT FUNCTION CHECK-III

Check the voltage between ECM harness connector and ground as per the following condition.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

EC-1217, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000012198748

1.

CHECK HO2S2 GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect heated oxygen sensor 2 (HO2S2) harness connector.

3. Disconnect ECM harness connector.

4. Check the continuity between HO2S2 harness connector and ECM harness connector.

ECM

Condition

Voltage

Connector

+

−

Terminal

F24

84

78

Revving up to 4,000 rpm under no 
load at least 10 times

The voltage should be above 0.68 V 
at least once during this procedure.

ECM

Condition

Voltage

Connector

+

−

Terminal

F24

84

78

Keeping engine speed at idle for 10 
minutes

The voltage should be above 0.68 V 
at least once during this procedure.

ECM

Condition

Voltage

Connector

+

−

Terminal

F24

84

78

Coasting from 80 km/h (50 MPH) in 
D position (CVT), 4th gear position 
(M/T)

The voltage should be above 0.68 V 
at least once during this procedure.

EC-1218

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

HO2S2

5. Also check harness for short to power.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

2.

CHECK HO2S2 INPUT SIGNAL CIRCUIT

1. Check the continuity between HO2S2 harness connector and ECM harness connector.

2. Check the continuity between HO2S2 harness connector and ground, or ECM harness connector and

ground.

3. Also check harness for short to power.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK HEATED OXYGEN SENSOR 2

Check the heated oxygen sensor 2. Refer to 

EC-1219, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-45, "Intermittent Incident"

.

NO

>> GO TO 4.

4.

REPLACE HEATED OXYGEN SENSOR 2

Replace heated oxygen sensor 2.

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

+

−

Continuity

HO2S2

ECM

Connector

Terminal

Connector

Terminal

F71

1

F24

78

Existed

+

−

Continuity

HO2S2

ECM

Connector

Terminal

Connector

Terminal

F71

2

F24

84

Existed

+

−

Continuity

HO2S2

Connector

Terminal

F71

2

Ground

Not existed

+

−

Continuity

ECM

Connector

Terminal

F24

84

Ground

Not existed

HO2S2

EC-1219

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

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Component Inspection

INFOID:0000000012198749

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 0.72 V at least once when the “FUEL INJECTION” is + 25%.

“HO2S2 (B1)” should be below 0.28 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-I

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.

: The voltage should be above 0.72 V at least on time.

: The voltage should be below 0.28 V at least on time.

JSBIA3451ZZ

ECM

Condition

Voltage

Connector

+

−

Terminal

F24

84

78

Revving up to 4,000 rpm under no 
load at least 10 times

The voltage should be above 0.72 V 
at least once during this procedure.
The voltage should be below 0.28 V 
at least once during this procedure.

EC-1220

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

HO2S2

4.

CHECK HEATED OXYGEN SENSOR 2-II

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 5.

5.

CHECK HEATED OXYGEN SENSOR 2-III

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 

EX-5, "Exploded View"

.

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

F24

84

78

Keeping engine speed at idle for 10 
minutes

The voltage should be above 0.72 V 
at least once during this procedure.
The voltage should be below 0.28 V 
at least once during this procedure.

ECM

Condition

Voltage

Connector

+

−

Terminal

F24

84

78

Coasting from 80 km/h (50 MPH) in 
D position (CVT), 4th gear position 
(M/T)

The voltage should be above 0.72 V 
at least once during this procedure.
The voltage should be below 0.28 V 
at least once during this procedure.