Nissan Qashqai (2007-2010). Manual — part 220

AUTOMATIC SPEED CONTROL DEVICE (ASCD)

EC-399

< FUNCTION DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

• More than 2 switches at ASCD steering switch are pressed at the same time (Set speed will be cleared)
• Brake pedal is depressed
• Clutch pedal is depressed or gear position is changed to neutral position.
• Vehicle speed decreased to 13 km/h (8 MPH) lower than the set speed
• TCS system is operated
When the ECM detects any of the following conditions, the ECM will cancel the cruise operation and inform
the driver by blinking indicator lamp.
• Engine coolant temperature is slightly higher than the normal operating temperature, CRUISE lamp may

blink slowly.
When the engine coolant temperature decreases to the normal operating temperature, CRUISE lamp will
stop blinking and the cruise operation will be able to work by pressing SET/COAST switch or RESUME/
ACCELERATE switch.

• Malfunction for some self-diagnoses regarding ASCD control: SET lamp will blink quickly.
If MAIN switch is turned to OFF during ASCD is activated, all of ASCD operations will be canceled and vehicle
speed memory will be erased.

COAST OPERATION

When the SET/COAST switch is pressed during cruise control driving, decrease vehicle set speed until the
switch is released. And then ASCD will keep the new set speed.

RESUME OPERATION

When the RESUME/ACCELERATE switch is pressed after cancel operation other than pressing MAIN switch
is performed, vehicle speed will return to last set speed. To resume vehicle set speed, vehicle condition must
meet following conditions.
• Brake pedal is released
• Clutch pedal is released
• Vehicle speed is greater than 40 km/h (25 MPH) and less than 180km/h (112 MPH)

Component Parts Location

INFOID:0000000001096758

EC-400

< FUNCTION DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

AUTOMATIC SPEED CONTROL DEVICE (ASCD)

1.

Ignition coil (with power transistor)
and spark plug

2.

Refrigerant pressure sensor

3.

Intake valve timing control solenoid
valve

4.

Knock sensor,
Crankshaft position sensor (POS)

5.

Fuel injector

6.

Camshaft position sensor (PHASE)

7.

Cooling fan motor

8.

IPDM E/R

9.

ECM

10. Mass air flow sensor (with intake

temperature sensor)

11.

Engine coolant temperature sensor

12. Electric throttle control actuator

(with built in throttle position sensor
and throttle control motor)

13. EVAP canister purge volume control

solenoid valve

JMBIA0399ZZ

AUTOMATIC SPEED CONTROL DEVICE (ASCD)

EC-401

< FUNCTION DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

1.

Mass air flow sensor

2.

Engine coolant temperature sensor

Vehicle front

1.

Electric throttle control actuator

2.

Camshaft position sensor (PHASE)

Vehicle front

1.

Ignition coil (with power transistor)
and spark plug

2.

Fuel injector

3

EVAP canister purge volume control
solenoid valve

Vehicle front

1.

ECM harness connector

2.

IPDM E/R

Vehicle front

JMBIA0400ZZ

JMBIA0401ZZ

JMBIA0402ZZ

JMBIA0403ZZ

EC-402

< FUNCTION DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

AUTOMATIC SPEED CONTROL DEVICE (ASCD)

PBIB2942E

1.

Heated oxygen sensor 1

2.

Exhaust manifold cover

3.

Heated oxygen sensor 2

4.

Heated oxygen sensor 2 harness
connector

1.

Intake valve timing control solenoid
valve

2.

Knock sensor

1.

Refrigerant pressure sensor

2.

PCV valve

Vehicle front

JMBIA0406ZZ

JMBIA0404ZZ

JMBIA0405ZZ