Nissan Qashqai (2007-2010). Manual — part 194

ASCD BRAKE SWITCH

EC-295

< COMPONENT DIAGNOSIS >

[HR16DE (WITH EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

8.

CHECK INTERMITTENT INCIDENT

Refer to

GI-39, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection (ASCD Brake Switch)

INFOID:0000000001056490

1.

CHECK ASCD BRAKE SWITCH-I

1.

Turn ignition switch OFF.

2.

Disconnect ASCD brake switch harness connector.

3.

Check the continuity between ASCD brake switch terminals under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

CHECK ASCD BRAKE SWITCH-II

1.

Adjust ASCD brake switch installation. Refer to

BR-17, "Removal and Installation"

(LHD) or

BR-61,

"Removal and Installation"

(RHD).

2.

Check the continuity between ASCD brake switch terminals under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace ASCD brake switch.

Component Inspection (ASCD Clutch Switch)

INFOID:0000000001056491

1.

CHECK ASCD CLUTCH SWITCH-I

1.

Turn ignition switch OFF.

2.

Disconnect ASCD clutch switch harness connector.

3.

Check the continuity between ASCD clutch switch terminals under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

CHECK ASCD CLUTCH SWITCH-II

1.

Adjust ASCD clutch switch installation. Refer to

CL-8, "Removal and Installation"

.

2.

Check the continuity between ASCD clutch switch terminals under the following conditions.

Terminals

Condition

Continuity

1 and 2

Brake pedal

Fully released

Existed

Slightly depressed

Not existed

Terminals

Condition

Continuity

1 and 2

Brake pedal

Fully released

Existed

Slightly depressed

Not existed

Terminals

Condition

Continuity

1 and 2

Clutch pedal

Fully released

Existed

Slightly depressed

Not existed

Terminals

Condition

Continuity

1 and 2

Clutch pedal

Fully released

Existed

Slightly depressed

Not existed

EC-296

< COMPONENT DIAGNOSIS >

[HR16DE (WITH EURO-OBD)]

ASCD BRAKE SWITCH

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace ASCD clutch switch.

ASCD INDICATOR

EC-297

< COMPONENT DIAGNOSIS >

[HR16DE (WITH EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

ASCD INDICATOR

Description

INFOID:0000000001056492

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-60, "System Description"

for the ASCD function.

Component Function Check

INFOID:0000000001056493

1.

ASCD INDICATOR FUNCTION

Check ASCD indicator under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Go to

EC-298, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001056494

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-121, "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-298

< COMPONENT DIAGNOSIS >

[HR16DE (WITH EURO-OBD)]

COOLING FAN

COOLING FAN

Description

INFOID:0000000001056495

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

EC-68, "System Diagram"

for cooling fan operation.

Component Function Check

INFOID:0000000001056496

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-299, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001056497

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