Nissan Qashqai (2007-2010). Manual — part 259

ASCD INDICATOR

EC-555

< COMPONENT DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

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ASCD INDICATOR

Description

INFOID:0000000001096960

ASCD indicator lamp illuminates to indicate ASCD operation status. Lamp has two indicators, CRUISE and
SET, and is integrated in combination meter.
CRUISE lamp illuminates when MAIN switch on ASCD steering switch is turned ON to indicated that ASCD
system is ready for operation.
SET lamp illuminates when following conditions are met.
• CRUISE lamp is illuminated.
• SET/COAST switch on ASCD steering switch is turned ON while vehicle speed is within the range of ASCD

setting.

SET lamp remains lit during ASCD control.
Refer to

EC-399, "System Description"

for the ASCD function.

Component Function Check

INFOID:0000000001096961

1.

ASCD INDICATOR FUNCTION

Check ASCD indicator under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Go to

EC-557, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001096962

1.

CHECK DTC

Check that DTC U1001 is not displayed.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Perform trouble diagnosis for DTC U1001. Refer to

EC-450, "DTC Logic"

.

2.

CHECK COMBINATION METER OPERATION

Refer to

MWI-23, "CONSULT-III Function (METER/M&A)"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check combination meter circuit. Refer to

MWI-43, "Wiring Diagram - METER -"

.

3.

CHECK INTERMITTENT INCIDENT

Refer to

GI-39, "Intermittent Incident"

.

>> INSPECTION END

ASCD INDICATOR

CONDITION

SPECIFICATION

CRUISE LAMP

• Ignition switch: ON

• MAIN switch: Pressed at the

1st time

→

at the 2nd time

ON

→

OFF

SET LAMP

• MAIN switch: ON
• When vehicle speed: Be-

tween 40 km/h (25 MPH) and
144 km/h (89 MPH)

• ASCD: Operating

ON

• ASCD: Not operating

OFF

EC-556

< COMPONENT DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

COOLING FAN

COOLING FAN

Description

INFOID:0000000001096963

Cooling fan operates at low and high speed when the current flows in the cooling fan motor.
Refer to

EC-407, "System Diagram"

for cooling fan operation.

Component Function Check

INFOID:0000000001096964

1.

CHECK COOLING FAN LOW SPEED FUNCTION

With CONSULT-III

1.

Turn ignition switch ON.

2.

Perform “COOLING FAN” in “ACTIVE TEST” mode with CONSULT-III.

3.

Make sure that cooling fan operates at low and high speed.

Without CONSULT-III

1.

Perform IPDM E/R auto active test and check cooling fan motor operation, refer to

PCS-9, "Diagnosis

Description"

.

2.

Make sure that cooling fan operates at low and high speed.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Go to

EC-558, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001096965

1.

CHECK IPDM E/R POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R harness connector E14.

3.

Check the voltage between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair open circuit or short to ground or short to power in harness or connectors

2.

CHECK COOLING FAN MOTOR CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect cooling fan motor harness connector.

3.

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

4.

Check the continuity between cooling fan motor harness connector and ground.

5.

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

Is the inspection result normal?

IPDM E/R

Ground

Voltage

Connector

Terminal

E14

53

Ground

Battery voltage

Cooling fan motor

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

E3

1

E14

52

Existed

54

Cooling fan motor

IPDM/ER

Ground

Continuity

Connector

Terminal

Connector

Terminal

E3

2

E10

5

Ground

Existed

6

COOLING FAN

EC-557

< COMPONENT DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

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YES

>> GO TO 4.

NO

>> GO TO 3.

3.

DETECT MALFUNCTIONING PART

Check the following.
• Resistor E57.
• Harness for open or short between IPDM E/R and cooling fan.
• Harness for open or short between cooling fan and ground.
• Harness for open or short between IPDM E/R and ground.

>> Repair or replace malfunctioning part.

4.

CHECK GROUND CONNECTION

1.

Turn ignition switch OFF.

2.

Check ground connection E21. Refer to Ground Inspection in

GI-41, "Circuit Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace ground connection.

5.

CHECK COOLING FAN MOTOR

Refer to

EC-559, "Component Inspection (Cooling Fan Motor)"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace malfunctioning cooling fan motor.

6.

CHECK INTERMITTENT INCIDENT

Refer to

GI-39, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace IPDM E/R.

NO

>> Repair or replace harness or connector.

Component Inspection (Cooling Fan Motor)

INFOID:0000000001096966

1.

CHECK COOLING FAN MOTOR

1.

Turn ignition switch OFF.

2.

Disconnect cooling fan motor harness connector E3.

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.

Terminals

Operation

(+)

(–)

1

2

Cooling fan operates.

EC-558

< COMPONENT DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

ELECTRICAL LOAD SIGNAL

ELECTRICAL LOAD SIGNAL

Description

INFOID:0000000001096967

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:0000000001096968

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-560, "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-560, "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-560, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001096969

1.

INSPECTION START

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

EC-560, "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-3, "Work Flow"

.

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