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
Component Inspection
INFOID:0000000009753488
1.
CHECK FUEL PRESSURE REGULATOR
1.
Turn ignition switch OFF.
2.
Check low fuel pressure. Refer to
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 ]
C
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EC
N
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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
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
.
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 ]
C
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EC
N
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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
.
Is inspection result normal?
YES
>> GO TO 8.
NO
>> Replace high pressure fuel pump relay. Refer to
.
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
.
+
−
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
2.
Check camshaft. Refer to
Is inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-46, "Intermittent Incident"
.
NO
>> Replace camshaft. Refer to
.
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
.
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
.
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
.
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
.
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 >
[MR16DDT ]
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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
.
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
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
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
.
8.
Remove ignition coil and spark plug of the cylinder to be checked. Refer to .0
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
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
.
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
.
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
.
Diagnosis Procedure
INFOID:0000000009753499
1.
INSPECTION START
Confirm the malfunctioning circuit (rear window defogger, headlamp or heater fan). Refer to
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
.
>> INSPECTION END
3.
CHECK HEADLAMP SYSTEM
Check the headlamp system. Refer to
.
>> INSPECTION END
4.
CHECK HEATER FAN CONTROL SYSTEM
Check the heater fan control system. Refer to
.
>> 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
.
2.
Check that cooling fan operates.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Proceed to
.
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
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
< DTC/CIRCUIT DIAGNOSIS >
[MR16DDT ]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
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
.
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
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
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