Nissan Juke (2016 year). Service Repair Manual — part 243
IDLE AIR VOLUME LEARNING
EC-759
< BASIC INSPECTION >
[MR EXCEPT FOR NISMO RS MODELS]
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5. Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds.
6. Repeat the following procedure quickly five times within 5 seconds.
-
Fully depress the accelerator pedal.
-
Fully release the accelerator pedal.
7. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the MIL stops
blinking and turned ON.
8. Fully release the accelerator pedal within 3 seconds after the MIL turned ON.
9. Start engine and let it idle.
10. Wait 20 seconds.
>> GO TO 4
4.
CHECK IDLE SPEED AND IGNITION TIMING
Rev up the engine two or three times and make sure that idle speed and ignition timing are within the specifi-
cations. For specification, refer to
.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 5.
5.
DETECT MALFUNCTIONING PART
Check the following
• Check that throttle valve is fully closed.
• Check PCV valve operation.
• Check that downstream of throttle valve is free from air leakage.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace malfunctioning part.
6.
DETECT MALFUNCTIONING PART
Engine component parts and their installation condition are questionable. Check and eliminate the cause of
the incident.
It is useful to perform “TROUBLE DIAGNOSIS - SPECIFICATION VALUE”. Refer to
If any of the following conditions occur after the engine has started, eliminate the cause of the incident and
perform Idle Air Volume Learning all over again:
• Engine stalls.
• Erroneous idle.
>> INSPECTION END
SEC897C
Revision: November 2015
2016 JUKE
EC-760
< BASIC INSPECTION >
[MR EXCEPT FOR NISMO RS MODELS]
AIR FUEL RATIO INITIAL LEARNING
AIR FUEL RATIO INITIAL LEARNING
Description
INFOID:0000000012198271
Air fuel ratio initial learning of ECM to learn the air fuel ratio that keeps each engine idle speed within the spe-
cific range. It must be performed under any of the following conditions:
• When ECM is replaced
*
• When engine assembly is replaced
*
• When electric throttle control actuator is replaced
*
• When mass air flow sensor is replaced
• When fuel injector is replaced
CAUTION:
*: Must be performed “IDLE AIR VOLUME LEARNING” when electric throttle control actuator or ECM is
replaced. Refer to
.
Work Procedure
INFOID:0000000012198272
1.
PRECONDITIONING
Make sure that all of the following conditions are satisfied.
Learning will be cancelled if any of the following conditions are missed for even a moment.
• Battery temperature: More than 5
°
C (41
°
F)
• Engine coolant temperature: More than 70
°
C (158
°
F)
• Shift lever: P or N
• Electric load switch: OFF
(Air conditioner, headlamp, rear window defogger)
• Vehicle speed: Stopped
• Transmission: Warmed-up
• Drive vehicle for 10 minutes.
Do you have CONSULT?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
AIR FUEL RATIO INITIAL LEARNING
With CONSULT
1. Perform “ACCELERATOR PEDAL RELEASED POSITION LEARNING”. Refer to
2. Perform “THROTTLE VALVE CLOSED POSITION LEARNING”. Refer to
3. Start engine and warm it up to normal operating temperature.
4. Select “A/F INITIAL LEARNING” in “WORK SUPPORT” mode of “ENGINE” using CONSULT.
5. Touch “START” and wait 20 seconds.
“CMPLT” displayed on CONSULT screen?
YES
>> INSPECTION END
NO
>> GO TO 4.
3.
AIR FUEL RATIO INITIAL LEARNING
Without CONSULT
NOTE:
• It is better to count the time accurately with a clock.
• It is impossible to switch the diagnostic mode when an accelerator pedal position sensor circuit has a mal-
function.
1. Perform “ACCELERATOR PEDAL RELEASED POSITION LEARNING”. Refer to
2. Perform “THROTTLE VALVE CLOSED POSITION LEARNING”. Refer to
3. Start engine and warm it up to normal operating temperature.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds.
6. Repeat the following procedure quickly five times within 5 seconds.
-
Fully depress the accelerator pedal.
-
Fully release the accelerator pedal.
Revision: November 2015
2016 JUKE
AIR FUEL RATIO INITIAL LEARNING
EC-761
< BASIC INSPECTION >
[MR EXCEPT FOR NISMO RS MODELS]
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7. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the MIL stops
blinking and turned ON.
8. Fully release the accelerator pedal within 3 seconds after the MIL turned ON.
9. Start engine and let it idle.
10. Wait 20 seconds.
>> INSPECTION END
4.
DETECT MALFUNCTIONING PART
Engine component parts and their installation condition are questionable. Check and eliminate the cause of
the incident.
It is useful to perform “TROUBLE DIAGNOSIS - SPECIFICATION VALUE”. Refer to
If any of the following conditions occur after the engine has started, eliminate the cause of the incident and
perform “AIR FUEL RATIO INITIAL LEARNING” all over again:
• Engine stalls
• Erroneous idle
>> INSPECTION END
SEC897C
Revision: November 2015
2016 JUKE
EC-762
< BASIC INSPECTION >
[MR EXCEPT FOR NISMO RS MODELS]
MIXTURE RATIO SELF-LEARNING VALUE CLEAR
MIXTURE RATIO SELF-LEARNING VALUE CLEAR
Description
INFOID:0000000012198273
This describes how to erase the mixture ratio self-learning value. For the actual procedure, follow the instruc-
tions in “Diagnosis Procedure”. Refer to
Work Procedure
INFOID:0000000012198274
1.
START
With CONSULT
1. Start engine and warm it up to normal operating temperature.
2. Select “SELF-LEARNING CONT” in “WORK SUPPORT” mode of “ENGINE” using CONSULT.
3. Clear mixture ratio self-learning value by touching “CLEAR”.
With GST
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF.
3. Disconnect mass air flow sensor harness connector.
4. Restart engine and let it idle for at least 5 seconds.
5. Stop engine and reconnect mass air flow sensor harness connector.
6. Select Service $03 with GST. Make sure DTC P0102 is detected.
7. Select Service $04 with GST to erase the DTC P0102.
>> END
Revision: November 2015
2016 JUKE
G SENSOR CALIBRATION
EC-763
< BASIC INSPECTION >
[MR EXCEPT FOR NISMO RS MODELS]
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G SENSOR CALIBRATION
Description
INFOID:0000000012198275
ECM stores calibration data (inherent characteristic value) of G sensor to provide accurate control. Therefore,
it is required to perform calibration of G sensor after the following work is performed.
• Removal/installation or replacement of G sensor
• Replacement of ECM
Work Procedure
INFOID:0000000012198276
1.
PREPARATION BEFORE CALIBRATION PROCEDURE
1. Park the vehicle on a level surface.
2. Adjust air pressure of all tires to the specified pressure.
>> GO TO 2.
2.
PERFORM CALIBRATION
With CONSULT
1. Turn ignition switch ON.
CAUTION:
Never start engine.
2. Select “Work Support” mode in “ENGINE.
3. Select “G SENSOR CALIBRATION”.
4. Touch “Start”.
CAUTION:
Never swing the vehicle during “G sensor calibration”.
Is “COMPLETED” displayed?
YES
>> END
NO
>> Perform steps 1 and 2 again.
Revision: November 2015
2016 JUKE
EC-764
< BASIC INSPECTION >
[MR EXCEPT FOR NISMO RS MODELS]
CUMULATIVE BATTERY DISCHARGE CURRENT CLEAR
CUMULATIVE BATTERY DISCHARGE CURRENT CLEAR
Description
INFOID:0000000012198277
Cumulative Battery Discharge Current Clear is a function of ECM to erase the cumulative battery discharge
current. It must be performed when battery is replaced. Refer to
.
Work Procedure
INFOID:0000000012198278
1.
ERASE CUMULATIVE BATTERY DISCHARGE CURRENT
With CONSULT
1. Turn ignition switch ON.
2. Select “CML B/DCHRG CRNT CLEAR” in “WORK SUPPORT” mode of “ENGINE” using CONSULT.
3. Touch “CLEAR” and erase cumulative battery discharge current.
>> INSPECTION END
Revision: November 2015
2016 JUKE
BASIC INSPECTION
EC-765
< BASIC INSPECTION >
[MR EXCEPT FOR NISMO RS MODELS]
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BASIC INSPECTION
Work Procedure
INFOID:0000000012198279
1.
INSPECTION START
1. Check service records for any recent repairs that may indicate a related malfunction, or a current need for
scheduled maintenance.
2. Open engine hood and check the following:
-
Harness connectors for improper connections
-
Wiring harness for improper connections, pinches and cut
-
Vacuum hoses for splits, kinks and improper connections
-
Hoses and ducts for leaks
-
Air cleaner clogging
-
Gasket
3. Confirm that electrical or mechanical loads are not applied.
-
Headlamp switch is OFF.
-
Air conditioner switch is OFF.
-
Rear window defogger switch is OFF.
-
Steering wheel is in the straight-ahead position, etc.
4. Start engine and warm it up until engine coolant temperature
indicator points the middle of gauge.
Ensure engine stays below 1,000 rpm.
5. Run engine at about 2,000 rpm for about 2 minutes under no
load.
6. Make sure that no DTC is displayed with CONSULT or GST.
Is any DTC detected?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
REPAIR OR REPLACE
Repair or replace components as necessary according to corresponding Diagnostic Procedure.
>> GO TO 3.
3.
CHECK TARGET IDLE SPEED
1. Run engine at about 2,000 rpm for about 2 minutes under no load.
SEF983U
SEF976U
SEF977U
Revision: November 2015
2016 JUKE
EC-766
< BASIC INSPECTION >
[MR EXCEPT FOR NISMO RS MODELS]
BASIC INSPECTION
2. Rev engine (2,000 to 3,000 rpm) two or three times under no
load, then run engine at idle speed for about 1 minute.
3. Check idle speed.
For procedure, refer to
For specification, refer to
.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> GO TO 4.
4.
PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
1. Stop engine.
2. Perform
>> GO TO 5.
5.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform
.
>> GO TO 6.
6.
PERFORM IDLE AIR VOLUME LEARNING
Perform
.
Is Idle Air Volume Learning carried out successfully?
YES
>> GO TO 7.
NO
>> Follow the instruction of Idle Air Volume Learning. Then GO TO 4.
7.
CHECK TARGET IDLE SPEED AGAIN
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
For procedure, refer to
For specification, refer to
.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> GO TO 8.
8.
DETECT MALFUNCTIONING PART
Check the Following.
• Check camshaft position sensor (PHASE) and circuit. Refer to
.
• Check crankshaft position sensor (POS) and circuit. Refer to
.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Repair or replace. Then GO TO 4
9.
CHECK ECM FUNCTION
1. Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but
this is a rare case.)
2. Perform initialization of NATS system and registration of all NATS ignition key IDs. Refer to
>> GO TO 4.
10.
CHECK IGNITION TIMING
1. Run engine at idle.
PBIA8513J
Revision: November 2015
2016 JUKE
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