Nissan Juke (2014 year). Service Repair Manual - part 111

EC-518

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

LOW PRESSURE FUEL PUMP

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 and fuel pump harness connector and IPDM E/R har-
ness 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 and fuel pump 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-518, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-46, "Intermittent Incident"

.

NO

>> Replace fuel level sensor unit and fuel pump. Refer to 

FL-5, "2WD : Exploded View"

.

Component Inspection

INFOID:0000000009753488

1.

CHECK FUEL PRESSURE REGULATOR

1.

Turn ignition switch OFF.

2.

Check low fuel pressure. Refer to 

EC-149, "Work Procedure"

.

Is inspection result normal?

+

−

Voltage

Fuel level sensor unit 

and fuel pump

Connector

Terminal

B46

1

Ground

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

+

−

Continuity

Fuel level sensor unit and 

fuel pump

IPDM E/R

Connector

Terminal

Connector

Terminal

B46

1

E15

54

Existed

+

−

Continuity

Fuel level sensor unit and 

fuel pump

Connector

Terminal

B46

3

Ground

Existed

Revision: 2013 October

2014 JUKE

LOW PRESSURE FUEL PUMP

EC-519

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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YES

>> INSPECTION END

NO

>> GO TO 2.

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-5, "2WD : Exploded View"

.

Fuel level sensor unit

Condition

Resistance

+

−

Terminals

2

4

Temperature: 25

°

C (77

°

F)

0.2 - 5.0 

Ω

Revision: 2013 October

2014 JUKE

EC-520

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

HIGH PRESSURE FUEL PUMP

HIGH PRESSURE FUEL PUMP

Component Function Check

INFOID:0000000009753489

1.

CHECK HIGH PRESSURE FUEL PUMP FUNCTION

With CONSULT

1.

Start engine.

2.

Check “FUEL PRES SEN V” in “DATA MONITOR” mode of “ENGINE” using CONSULT.

Without CONSULT

1.

Start engine.

2.

Check the voltage between ECM harness connector terminals as per the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

EC-520, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009753490

1.

CHECK HIGH PRESSURE FUEL PUMP POWER SUPPLY

1.

Turn ignition switch ON.

2.

Check the voltage between ECM harness connector and ground.

Is inspection result normal?

Monitor Item

Condition

Values/Status

FUEL PRES SEN V

Engine speed: Idle

1,140 – 1,460 mV

Engine speed: Revving engine 
from idle to 4,000 rpm quickly

1,300 – 2,900 mV

ECM

Condition

Voltage

Connector

+

−

Terminal

F26

55

50

[Engine is running]
• Warm-up condition
• Idle speed

NOTE:
The pulse cycle changes depending on rpm 
at idle

BATTERY VOLTAGE

(11 - 14 V) 

[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm

BATTERY VOLTAGE

(11 - 14 V) 

JPBIA4722ZZ

JPBIA4723ZZ

+

−

Voltage

ECM

Connector

Terminal

F26

54

Ground

Battery voltage

Revision: 2013 October

2014 JUKE

HIGH PRESSURE FUEL PUMP

EC-521

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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YES

>> GO TO 8.

NO

>> GO TO 2.

2.

CHECK HIGH PRESSURE FUEL PUMP POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Disconnect fuel injector relay harness connector.

4.

Check the continuity between ECM harness connector and high pressure fuel pump relay harness con-
nector.

5.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts

3.

CHECK HIGH PRESSURE FUEL PUMP RELAY POWER SUPPLY (CONTACT SIDE)

Check the voltage between high pressure fuel pump relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Perform the trouble diagnosis for power supply circuit.

4.

CHECK HIGH PRESSURE FUEL PUMP RELAY POWER SUPPLY (EXCITATION COIL SIDE)

1.

Reconnect all harness connectors disconnected.

2.

Turn ignition switch ON.

3.

Check the voltage between high pressure fuel pump relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 5

5.

CHECK HIGH PRESSURE FUEL PUMP RELAY POWER SUPPLY CIRCUIT (EXCITATION COIL SIDE)

1.

Turn ignition switch OFF.

2.

Disconnect high pressure fuel pump relay harness connector.

3.

Disconnect IPDM E/R harness connector.

4.

check the continuity between ipdm e/r harness connector and high pressure fuel pump harness connec-
tor.

+

−

Continuity

ECM

High pressure fuel pump re-

lay

Connector

Terminal

Connector

Terminal

F26

54

E58

3

Existed

+

−

Voltage

High pressure fuel pump relay

Connector

Terminal

E58

5

Ground

Battery voltage

+

−

Voltage

High pressure fuel pump relay

Connector

Terminal

E58

2

Ground

Battery voltage

Revision: 2013 October

2014 JUKE

EC-522

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

HIGH PRESSURE FUEL PUMP

5.

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.

6.

CHECK HIGH PRESSURE FUEL PUMP RELAY GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect high pressure fuel pump relay harness connector.

3.

Check the continuity between high pressure fuel pump relay harness connector and ground.

4.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace error-detected parts.

7.

CHECK HIGH PRESSURE FUEL PUMP RELAY

Check the high pressure fuel pump relay. Refer to 

EC-524, "Component Inspection (High Pressure Fuel Pump

Relay)"

.

Is inspection result normal?

YES

>> GO TO 8.

NO

>> Replace high pressure fuel pump relay. Refer to 

PG-8, "Standardized Relay"

.

8.

CHECK HIGH PRESSURE FUEL PUMP CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector and high pressure fuel pump harness connector.

3.

Check the continuity between ECM harness connector and high pressure fuel pump harness connector.

4.

Also check harness for short to ground and to power.

Is inspection result normal?

YES

>> GO TO 9.

NO

>> Repair or replace error-detected parts.

9.

CHECK HIGH PRESSURE FUEL PUMP

Check the high pressure fuel pump. Refer to 

EC-523, "Component Inspection (High Pressure Fuel Pump)"

.

Is inspection result normal?

YES

>> GO TO 10.

NO

>> Replace high pressure fuel pump. Refer to 

EM-46, "Exploded View"

.

+

−

Continuity

IPDM E/R

High pressure fuel pump re-

lay

Connector

Terminal

Connector

Terminal

E14

35

E58

2

Existed

+

−

Continuity

High pressure fuel pump relay

Connector

Terminal

E58

1

Ground

Existed

+

−

Continuity

ECM

High pressure fuel pump

Connector

Terminal

Connector

Terminal

F26

55

F53

1

Existed

56

2

Revision: 2013 October

2014 JUKE

HIGH PRESSURE FUEL PUMP

EC-523

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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10.

CHECK HIGH PRESSURE FUEL PUMP INSTALLATION CONDITION

1.

Turn ignition switch OFF.

2.

Check that the high pressure fuel pump is installed with no backlash and looseness.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> Repair or replace error-detected parts.

11.

CHECK CAMSHAFT

1.

Remove camshaft. Refer to 

EM-85, "Exploded View"

.

2.

Check camshaft. Refer to 

EM-89, "Inspection"

.

Is inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-46, "Intermittent Incident"

.

NO

>> Replace camshaft. Refer to 

EM-85, "Exploded View"

.

Component Inspection (High Pressure Fuel Pump)

INFOID:0000000009753491

1.

CHECK HIGH PRESSURE FUEL PUMP-I

1.

Turn ignition switch OFF.

2.

Disconnect high pressure fuel pump harness connector.

3.

Check the resistance between high pressure fuel pump terminals as follows.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace high pressure fuel pump. Refer to 

EM-46, "Exploded View"

.

2.

CHECK HIGH PRESSURE FUEL PUMP-II

With CONSULT

1.

Reconnect high pressure fuel pump harness connector.

2.

Start the engine.

3.

Check “FUEL PRES SEN” in “DATA MONITOR” of “ENGINE” using CONSULT.

Without CONSULT

1.

Start the engine.

2.

Check fuel rail pressure sensor signal voltage.

Is the inspection result normal?

YES

>> INSPECTION END

High pressure fuel pump

Condition

Resistance

+

−

Terminal

1

2

Temperature 

°

C (

°

F)

20 – 30 (68 - 86)

0.46 - 0.51 

Ω

Data monitor item

Condition

Voltage

(Approx.)

FUEL PRES SEN V

Engine speed: idle

1,140 – 1,460 mV

Engine speed: Revving engine from idle to 4,000 rpm quickly

 1,300 – 2,900 mV

+

−

Condition

Value

(Approx.)

Fuel rail pressure sensor

Connector

Terminal

F5

2

Ground

Engine speed: idle

1.14 – 1.46 V

Engine speed: Revving engine 
from idle to 4,000 rpm quickly

 1.3 – 2.9 V

Revision: 2013 October

2014 JUKE

EC-524

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

HIGH PRESSURE FUEL PUMP

NO

>> Replace high pressure fuel pump. Refer to 

EM-46, "Exploded View"

.

Component Inspection (High Pressure Fuel Pump Relay)

INFOID:0000000009753492

1.

CHECK HIGH PRESSURE FUEL PUMP RELAY

1.

Turn ignition switch OFF.

2.

Remove high pressure fuel pump relay.

3.

Check the continuity between high pressure fuel pump relay ter-
minals as per the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace high pressure fuel pump relay.

High pressure fuel 

pump relay

Conditions

Continuity

+

−

Terminal

3

5

12 V direct current supply between ter-
minals 1 and 2

Existed

No current supply

Not existed

SEF090M

Revision: 2013 October

2014 JUKE

IGNITION SIGNAL

EC-525

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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IGNITION SIGNAL

Component Function Check

INFOID:0000000009753493

1.

INSPECTION START

Turn ignition switch OFF, and restart engine.
Does the engine start?

YES

>> GO TO 2.

NO

>> Proceed to 

EC-525, "Diagnosis Procedure"

.

2.

IGNITION SIGNAL FUNCTION

With CONSULT

1.

Perform “POWER BALANCE” in “ACTIVE TEST” mode of “ENGINE” using CONSULT.

2.

Check that each circuit produces a momentary engine speed drop.

Without CONSULT

1.

Let engine idle.

2.

Check the voltage signal between ECM harness connector and ground with an oscilloscope.

NOTE:
The pulse cycle changes depending on rpm at idle.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

EC-525, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009753494

1.

CHECK CONDENSER POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect condenser harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between condenser harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK CONDENSER POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R harness connector.

3.

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

ECM

Voltage signal

+

−

Connector

Terminal

Connector

Terminal

F26

82

E18

127

86

90

94

JPBIA4733ZZ

+

−

Voltage

Condenser

Connector

Terminal

F13

1

Ground

Battery voltage

Revision: 2013 October

2014 JUKE

EC-526

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

IGNITION SIGNAL

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 CONDENSER GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check the continuity between Condenser harness connector and ground.

3.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK CONDENSER

Check the condenser. refer to 

EC-528, "Component Inspection (Condenser)"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace condenser.

5.

CHECK IGNITION COIL POWER SUPPLY

1.

Reconnect all harness connectors disconnected.

2.

Disconnect ignition coil harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between ignition coil harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Perform the trouble diagnosis for power supply circuit.

6.

CHECK IGNITION COIL GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check the continuity between ignition coil harness connector and ground.

+

−

Continuity

IPDM E/R

Condenser

Connector

Terminal

Connector

Terminal

E15

61

F13

1

Existed

+

−

Continuity

Condenser

Connector

Terminal

F13

2

Ground

Existed

+

−

Voltage

Ignition coil

Cylinder

Connector

Terminal

1

F33

3

Ground

Battery voltage

2

F34

3

3

F35

3

4

F36

3

Revision: 2013 October

2014 JUKE

IGNITION SIGNAL

EC-527

< DTC/CIRCUIT DIAGNOSIS >

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3.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace error-detected parts.

7.

CHECK IGNITION COIL OUTPUT SIGNAL CIRCUIT

1.

Disconnect ECM harness connector.

2.

Check the continuity between ECM harness connector and ignition coil harness connector.

3.

Also check harness for short to ground and short to power.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace error-detected parts.

8.

CHECK IGNITION COIL WITH POWER TRANSISTOR

Check the ignition coil with power transistor. Refer to 

EC-527, "Component Inspection (Ignition Coil with

Power Transistor)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-46, "Intermittent Incident"

.

NO

>> Replace malfunctioning ignition coil with power transistor. Refer to 

EM-57, "Exploded View"

.

Component Inspection (Ignition Coil with Power Transistor)

INFOID:0000000009753495

1.

CHECK IGNITION COIL WITH POWER TRANSISTOR-I

1.

Turn ignition switch OFF.

2.

Disconnect ignition coil harness connector.

3.

Check resistance between ignition coil terminals as per the following.

Is the inspection result normal?

YES

>> GO TO 2.

+

−

Continuity

Ignition coil

Cylinder

Connector

Terminal

1

F33

2

Ground

Existed

2

F34

2

3

F35

2

4

F36

2

+

−

Continuity

Ignition coil

ECM

Cylinder

Connector

Terminal

Connector

Terminal

1

F33

1

F26

82

Existed

2

F34

1

86

3

F35

1

90

4

F36

1

94

Ignition coil with power transistor

Resistance [

Ω

 at 25

°

C (77

°

F)]

+

−

Terminal

1

2

Except 0 or 

∞

3

Except 0

2

3

Revision: 2013 October

2014 JUKE

EC-528

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

IGNITION SIGNAL

NO

>> Replace malfunctioning ignition coil with power transistor. Refer to 

EM-57, "Exploded View"

.

2.

CHECK IGNITION COIL WITH POWER TRANSISTOR-II

CAUTION:

Do the following procedure in the place where ventilation is good without the combustible.
1.

Turn ignition switch OFF.

2.

Reconnect all harness connectors disconnected.

3.

Remove fuel pump fuse in IPDM E/R to release fuel pressure.
NOTE:
Do not use CONSULT to release fuel pressure, or fuel pressure applies again during the following proce-
dure.

4.

Start engine.

5.

After engine stalls, crank it two or three times to release all fuel pressure.

6.

Turn ignition switch OFF.

7.

Remove all ignition coil harness connectors to avoid the electrical discharge from the ignition coils. Refer
to 

EM-57, "Exploded View"

.

8.

Remove ignition coil and spark plug of the cylinder to be checked. Refer to .0

EM-57, "Exploded View"

9.

Crank engine for 5 seconds or more to remove combustion gas in the cylinder.

10. Connect spark plug and harness connector to ignition coil.
11. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 -

0.66 in) between the edge of the spark plug and grounded metal
portion as shown in the figure.

12. Crank engine for about three seconds, and check whether spark

is generated between the spark plug and the grounded metal
portion.

CAUTION:

• During the operation, always stay 0.5 cm (19.7 in) away

from the spark plug and the ignition coil. Be careful not to
get an electrical shock while checking, because the elec-
trical discharge voltage becomes 20 kV or more.

• It might cause to damage the ignition coil if the gap of more than 17 mm (0.66 in) is taken.
NOTE:
When the gap is less than 13 mm (0.52 in), the spark might be generated even if the coil is mal-
functioning.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace malfunctioning ignition coil with power transistor. Refer to 

EM-57, "Exploded View"

.

Component Inspection (Condenser)

INFOID:0000000009753496

1.

CHECK CONDENSER

1.

Turn ignition switch OFF.

2.

Disconnect condenser harness connector.

3.

Check resistance between condenser terminals as per the following.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace Condenser.

Spark should be generated.

JMBIA0066GB

Condenser

Resistance

+

−

Terminal

1

2

Above 1 M

Ω

 [at 25

°

C (77

°

F)]

Revision: 2013 October

2014 JUKE

ELECTRICAL LOAD SIGNAL

EC-529

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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ELECTRICAL LOAD SIGNAL

Description

INFOID:0000000009753497

The electrical load signal (Headlamp switch signal, rear window defogger switch signal, etc.) is transferred via
the CAN communication line.

Component Function Check

INFOID:0000000009753498

1.

CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION

With CONSULT

1.

Turn ignition switch ON.

2.

Select “DATA MONITOR” mode of “ENGINE” using CONSULT.

3.

Select “LOAD SIGNAL” and check indication as per the following conditions.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Proceed to 

EC-529, "Diagnosis Procedure"

.

2.

CHECK LIGHTING SWITCH FUNCTION

With CONSULT-III

Check “LOAD SIGNAL” indication as per the following conditions.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Proceed to 

EC-529, "Diagnosis Procedure"

.

3.

CHECK HEATER FAN CONTROL SWITCH FUNCTION

With CONSULT

Select “HEATER FAN SW” and check indication as per the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

EC-529, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009753499

1.

INSPECTION START

Confirm the malfunctioning circuit (rear window defogger, headlamp or heater fan). Refer to 

EC-529, "Compo-

nent Function Check"

.

Which circuit is related to the incident?

Rear window defogger>>GO TO 2.
Headlamp>>GO TO 3.
Heater fan>>GO TO 4.

Monitor item

Condition

Indication

LOAD SIGNAL

Rear window defogger switch

ON

ON

OFF

OFF

Monitor item

Condition

Indication

LOAD SIGNAL

Lighting switch

ON at 2nd posi-
tion

ON

OFF

OFF

Monitor item

Condition

Indication

HEATER FAN 
SW

Heater fan control switch

ON

ON

OFF

OFF

Revision: 2013 October

2014 JUKE

EC-530

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

ELECTRICAL LOAD SIGNAL

2.

CHECK REAR WINDOW DEFOGGER SYSTEM

Check the rear window defogger system. Refer to 

DEF-23, "Work Flow"

.

>> INSPECTION END

3.

CHECK HEADLAMP SYSTEM

Check the headlamp system. Refer to 

EXL-49, "Work Flow"

.

>> INSPECTION END

4.

CHECK HEATER FAN CONTROL SYSTEM

Check the heater fan control system. Refer to 

HAC-42, "Work Flow"

.

>> INSPECTION END

Revision: 2013 October

2014 JUKE

COOLING FAN

EC-531

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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COOLING FAN

Component Function Check

INFOID:0000000009753500

1.

CHECK COOLING FAN FUNCTION

With CONSULT

1.

Turn ignition switch ON.

2.

Perform “FAN DUTY CONTROL” in “ACTIVE TEST” mode of “ENGINE” using CONSULT.

3.

Check that cooling fan speed varies according to the percentage.

Without CONSULT

1.

Activate IPDM E/R auto active test and check cooling fan motors operation. Refer to 

PCS-12, "Diagnosis

Description"

.

2.

Check that cooling fan operates.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

EC-531, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009753501

1.

CHECK COOLING FAN CONTROL MODULE POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect cooling fan control nodule harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between cooling fan control nodule harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 2.

2.

CHECK COOLING FAN CONTROL MODULE POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect cooling fan relay harness connector.

3.

Check the continuity between cooling fan control nodule harness connector and cooling fan relay harness
connector.

4.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK COOLING FAN RELAY POWER SUPPLY CIRCUIT

1.

Disconnect IPDM E/R harness connector.

2.

Check the continuity between cooling fan relay harness connector and IPDM E/R harness connector.

+

−

Voltage

Cooling fan control module

Connector

Terminal

E203

3

Ground

Battery voltage

+

−

Continuity

Cooling fan control module

Cooling fan relay

Connector

Terminal

Connector

Terminal

E203

3

E204

3

Existed

Revision: 2013 October

2014 JUKE

EC-532

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

COOLING FAN

3.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK COOLING FAN RELAY

Check cooling fan relay. Refer to 

EC-533, "Component Inspection (Cooling Fan Relay)"

.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Replace cooling fan relay. Refer to 

PG-8, "Standardized Relay"

.

5.

CHECK COOLING FAN CONTROL MODULE GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check the continuity between cooling fan control nodule 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 COOLING FAN CONTROL SIGNAL CIRCUIT

1.

Disconnect IPDM E/R harness connector.

2.

Check the continuity between cooling fan control nodule harness connector and IPDM E/R harness con-
nector.

3.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace error-detected parts.

7.

CHECK COOLING FAN CONTROL MODULE OUTPUT SIGNAL CIRCUIT

1.

Reconnect all harness connectors disconnected.

2.

Disconnect cooling fan control module harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between cooling fan control module terminals and ground.

+

−

Continuity

Cooling fan relay

IPDM E/R

Connector

Terminal

Connector

Terminal

E204

1

E17

67

Existed

+

−

Continuity

Cooling fan control module

Connector

Terminal

E203

1

Ground

Existed

+

−

Continuity

Cooling fan control module

IPDM E/R

Connector

Terminal

Connector

Terminal

E203

2

E17

72

Existed

Revision: 2013 October

2014 JUKE

COOLING FAN

EC-533

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Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace error-detected parts.

8.

CHECK COOLING FAN MOTORS -1 AND -2

Check the cooling fan motor. Refer to 

EC-533, "Component Inspection (Cooling Fan Motor)"

.

YES

>> Check intermittent incident. Refer to 

GI-46, "Intermittent Incident"

.

NO

>> Replace cooling motor. Refer to 

CO-18, "Exploded View"

.

Component Inspection (Cooling Fan Motor)

INFOID:0000000009753502

1.

CHECK COOLING FAN MOTOR

1.

Turn ignition switch OFF.

2.

Disconnect cooling fan control module harness connector.

3.

Supply cooling fan control module harness connector terminals with battery voltage as per the following,
and check operation.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace malfunctioning cooling fan motor. Refer to 

CO-18, "Exploded View"

.

Component Inspection (Cooling Fan Relay)

INFOID:0000000009753503

1.

CHECK COOLING FAN RELAY

1.

Turn ignition switch OFF.

2.

Remove cooling fan relay.

3.

Check the continuity between cooling fan relay terminals under
the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace cooling fan relay.

+

−

Voltage

Cooling fan control module

Connector

Terminal

E301

4

Ground

Battery voltage

E302

6

Cooling fan control module

Operation

Motor

Connector

Terminal

(+)

(

−

)

1

E301

4

5

Cooling fan operates.

2

E302

6

7

Cooling fan relay

Conditions

Continuity

+

−

Terminal

3

5

12 V direct current supply between 
terminals 1 and 2

Existed

No current supply

Not existed

MBIB0057E

Revision: 2013 October

2014 JUKE