Nissan Tiida C11. Manual - part 486

EC-594

< COMPONENT DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

COOLING FAN

>> Repair or replace malfunctioning part.

3.

CHECK COOLING FAN MOTORS CIRCUIT FOR OPEN AND SHORT

1.

Disconnect cooling fan motor harness connector.

2.

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

3.

Check the continuity between cooling fan motor harness connector or IPDM E/R harness connector and
ground.

4.

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

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 4.

4.

DETECT MALFUNCTIONING PART

Check the following.
• Harness for open or short between cooling fan motor and IPDM E/R
• Harness for open or short between cooling fan motor and ground
• Harness for open or short between IPDM E/R and ground
• Resistor  E5

>> Repair or replace malfunctioning part.

5.

CHECK COOLING FAN MOTORS CIRCUIT FOR OPEN AND SHORT

1.

Disconnect cooling fan motor harness connector.

2.

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

3.

Check the continuity between cooling fan motor harness connector or IPDM E/R harness connector and
ground.

4.

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

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 6.

IPDM E/R

Cooling fan motor

Continuity

Connector

Terminal

Connector

Terminal

E44

24

E3

1

Existed

E45

30

Cooling fan motor

IPDM E/R

Ground

Continuity

Connector

Terminal

Connector

Terminal

E3

2

E46

59

Ground

Existed

39

IPDM E/R

Cooling fan motor

Continuity

Connector

Terminal

Connector

Terminal

E44

23

E3

1

Existed

24

2

E45

30

3

Cooling fan motor

IPDM E/R

Ground

Continuity

Connector

Terminal

Connector

Terminal

E3

4

E46

59

Ground

Existed

39

COOLING FAN

EC-595

< COMPONENT DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

C

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6.

DETECT MALFUNCTIONING PART

Check the following.
• Harness for open or short between cooling fan motor and IPDM E/R
• Harness for open or short between cooling fan motor and ground
• Harness for open or short between IPDM E/R and ground

>> Repair or replace malfunctioning part.

7.

CHECK GROUND CONNECTION

Check ground connection E24. Refer to Ground Inspection in 

GI-58, "Circuit Inspection"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace ground connection.

8.

CHECK COOLING FAN MOTOR

Refer to 

EC-595, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Replace malfunctioning cooling fan motor.

9.

CHECK INTERMITTENT INCIDENT

Perform 

GI-55, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace IPDM E/R.

NO

>> Repair or replace harness or connector.

Component Inspection

INFOID:0000000001693427

1.

CHECK OVERALL FUNCTION

Check if the vehicle is equipped with an air conditioner.

Is it equipped with an air conditioner?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

CHECK COOLING FAN MOTOR

1.

Turn ignition switch OFF.

2.

Disconnect cooling fan motor harness connector.

3.

Supply cooling fan motor terminals with battery voltage and check operation.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace cooling fan motor.

3.

CHECK COOLING FAN MOTOR

1.

Turn ignition switch OFF.

2.

Disconnect cooling fan motor harness connector.

3.

Supply cooling fan motor terminals with battery voltage and check operation.

Terminals

Operation

(+)

(–)

1

2

Cooling fan operates.

EC-596

< COMPONENT DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

COOLING FAN

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace cooling fan motor.

Terminals

Operation

(+)

(–)

1

4

Cooling fan operates at low speed.

2

3

1 and 2

3 and 4

Cooling fan operates at high speed.

ELECTRICAL LOAD SIGNAL

EC-597

< COMPONENT DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

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ELECTRICAL LOAD SIGNAL

Description

INFOID:0000000001693428

The electrical load signal (Headlamp switch signal, rear window defogger switch signal, etc.) is transferred
through the CAN communication line from BCM to ECM via IPDM E/R.

Component Function Check

INFOID:0000000001693429

1.

CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION

1.

Turn ignition switch ON.

2.

Connect CONSULT-III and select “DATA MONITOR” mode.

3.

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

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Go to 

EC-597, "Diagnosis Procedure"

.

2.

CHECK LIGHTING SWITCH FUNCTION

Check “LOAD SIGNAL” indication under the following conditions.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Go to 

EC-597, "Diagnosis Procedure"

.

3.

CHECK HEATER FAN CONTROL SWITCH FUNCTION

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

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Go to 

EC-597, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001693430

1.

INSPECTION START

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

EC-597, "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.

2.

CHECK REAR WINDOW DEFOGGER SYSTEM

Refer to 

DEF-6, "System Diagram"

.

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 position

ON

OFF

OFF

Monitor item

Condition

Indication

HEATER FAN SW

Heater fan control switch

ON

ON

OFF

OFF