Nissan Juke F15. Manual - part 605

INFORMATION DISPLAY (ASCD)

EC-1233

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

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INFORMATION DISPLAY (ASCD)

Component Function Check

INFOID:0000000012198761

1.

CHECK INFORMATION DISPLAY

1. Start engine.

2. Press ASCD MAIN switch on ASCD steering switch.

3. Drive the vehicle at more than 40 km/h (25 MPH).

CAUTION:

Always drive vehicle at a safe speed.

4. Press COAST/SET switch.

5. Check that the reading of the speedometer shows the same value as the set speed indicated in the infor-

mation display while driving the vehicle on a flat road.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

EC-1233, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000012198762

1.

CHECK DTC

Check that DTC UXXXX, P0500 or P1574 is not displayed.
Is the inspection result normal?

YES

>> GO TO 2.

NO-1 >> Perform trouble diagnosis for DTC UXXXX.

NO-2 >> Perform trouble diagnosis for DTC P0500. Refer to 

EC-1027, "EXCEPT FOR M/T MODELS : DTC

Logic"

.

NO-3 >> Perform trouble diagnosis for DTC P1574. Refer to 

EC-1113, "DTC Logic"

.

2.

CHECK DTC WITH COMBINATION METER

Refer to 

MWI-22, "CONSULT Function"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Perform trouble diagnosis for DTC indicated.

3.

CHECK INTERMITTENT INCIDENT

Perform 

GI-45, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace combination meter. Refer to 

MWI-64, "Removal and Installation"

.

NO

>> Repair or replace error-detected parts.

EC-1234

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

LOW PRESSURE FUEL PUMP

LOW PRESSURE FUEL PUMP

Component Function Check

INFOID:0000000012198763

1.

CHECK FUEL PUMP FUNCTION

1. Turn ignition switch ON.

2. Pinch fuel feed hose with two fingers.

NOTE:

Fuel pressure pulsation should be felt on the fuel feed hose for 1 second after ignition switch is turned ON.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

EC-1234, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000012198764

1.

CHECK FUEL PUMP RELAY POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Turn ignition switch ON.

4. Check the voltage between ECM harness connector terminals.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK FUEL PUMP RELAY POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect IPDM E/R harness connector.

3. Check the continuity between ECM harness connector and IPDM E/R harness connector.

4. Also check harness for short to ground.
Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

3.

CHECK LOW FUEL PUMP POWER SUPPLY

1. Turn ignition switch OFF.

2. Reconnect ECM harness connector.

3. Disconnect fuel level sensor unit harness connector.

4. Turn ignition switch ON.

5. Check the voltage between fuel level sensor unit harness connector and ground.

ECM

Voltage

Connector

+

Connector

-

Terminal

Terminal

F24

82

E19

152

Battery voltage

+

−

Continuity

ECM

IPDM E/R

Connector

Terminal

Connector

Terminal

F24

82

E13

31

Existed

LOW PRESSURE FUEL PUMP

EC-1235

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

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Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK LOW FUEL PUMP POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect IPDM E/R harness connector.

3. Check the continuity between fuel level sensor unit harness connector and IPDM E/R harness connector.

4. Also check harness for short to ground.
Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

5.

CHECK LOW FUEL PUMP GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Check the continuity between fuel level sensor unit harness connector and ground.

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

YES

>> GO TO 6.

NO

>> Repair or replace error-detected parts.

6.

CHECK LOW FUEL PUMP

Check the low fuel pump. Refer to 

EC-1235, "Component Inspection (Low Pressure Fuel Pump)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-45, "Intermittent Incident"

.

NO

>> Replace fuel level sensor unit. Refer to 

FL-6, "2WD : Exploded View"

 (2WD) or 

FL-10, "AWD :

Exploded View"

 (AWD).

Component Inspection (Low Pressure Fuel Pump)

INFOID:0000000012198765

1.

CHECK FUEL PRESSURE REGULATOR

1. Turn ignition switch OFF.

2. Check low fuel pressure. Refer to 

EC-771, "Work Procedure"

.

Is inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

+

-

Voltage

Fuel level sensor unit

Connector

Terminal

B46

1

Ground

Battery voltage should for exist 1 
second after ignition switch is turn 
ON.

+

−

Continuity

Fuel level sensor unit

IPDM E/R

Connector

Terminal

Connector

Terminal

B46

1

E15

54

Existed

+

-

Continuity

Fuel level sensor unit

Connector

Terminal

B46

3

Ground

Existed

EC-1236

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

LOW PRESSURE FUEL PUMP

2.

CHECK LOW PRESSURE FUEL PUMP

1. Turn ignition switch OFF.

2. Disconnect fuel level sensor unit.

3. Check resistance between fuel level sensor unit terminals as follows.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace fuel level sensor unit. Refer to 

FL-6, "2WD : Exploded View"

 (2WD) or 

FL-10, "AWD :

Exploded View"

 (AWD).

Fuel level sensor unit

Condition

Resistance

+

−

Terminals

1

3

Temperature: 25

°C (77°F)

0.2 - 5.0 

Ω