Nissan Qashqai (2007-2010). Manual - part 424

ECM

EC-1215

< ECU DIAGNOSIS >

[MR20DE (WITHOUT EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

AIR COND SIG

• Engine: After warming up, idle the 

engine

Air conditioner switch: OFF

OFF

Air conditioner switch: ON
(Compressor operates.)

ON

P/N POSI SW

• Ignition switch: ON

Shift lever: P or N (CVT), Neutral (M/T)

ON

Selector lever: Except above

OFF

PW/ST SIGNAL

• Engine: After warming up, idle the 

engine

Steering wheel: Not being turned

OFF

Steering wheel: Being turned

ON

LOAD SIGNAL

• Ignition switch: ON

Rear window defogger switch: ON
and/or Lighting switch: 2nd position

ON

Rear window defogger switch and lighting 
switch: OFF

OFF

IGNITION SW

• Ignition switch: ON 

→

 OFF 

→

 ON

ON 

→

 OFF 

→

 ON

HEATER FAN SW

• Engine: After warming up, idle the 

engine

Heater fan switch: ON

ON

Heater fan switch: OFF

OFF

BRAKE SW

• Ignition switch: ON

Brake pedal: Fully released

OFF

Brake pedal: Slightly depressed

ON

INJ PULSE-B1

• Engine: After warming up
• Shift lever: P or N (CVT), Neutral 

(M/T)

• Air conditioner switch: OFF
• No  load

Idle

2.0 - 3.0 msec

2,000 rpm

1.9 - 2.9 msec

IGN TIMING

• Engine: After warming up
• Shift lever: P or N (CVT), Neutral 

(M/T)

• Air conditioner switch: OFF
• No  load

Idle

10

°

 - 20

°

 BTDC

2,000 rpm

25

°

 - 45

°

 BTDC

PURG VOL C/V

• Engine: After warming up
• Shift lever: P or N (CVT), Neutral 

(M/T)

• Air conditioner switch: OFF
• No  load

Idle
(Accelerator pedal: Not depressed even 
slightly, after engine starting.)

0%

2,000 rpm

20% - 90%

INT/V TIM (B1)

• Engine: After warming up
• Shift lever: P or N (CVT), Neutral 

(M/T)

• Air conditioner switch: OFF
• No  load

Idle

−

5

°

 - 5

°

CA

2,000 rpm

Approx. 0

°

 - 20

°

CA

INT/V SOL (B1)

• Engine: After warming up
• Shift lever: P or N (CVT), Neutral 

(M/T)

• Air conditioner switch: OFF
• No  load

Idle

0%

2,000 rpm

Approx. 0% - 60%

AIR COND RLY

• Engine: After warming up, idle the 

engine

Air conditioner switch: OFF

OFF

Air conditioner switch: ON
(Compressor operates)

ON

FUEL PUMP RLY

• For 1 seconds after turning ignition switch: ON
• Engine running or cranking

ON

• Except above

OFF

THRTL RELAY

• Ignition switch: ON

ON

Monitor Item

Condition

Values/Status

EC-1216

< ECU DIAGNOSIS >

[MR20DE (WITHOUT EURO-OBD)]

ECM

COOLING FAN

• Engine: After warming up, idle the 

engine

• Air conditioner switch: OFF

Engine coolant temperature is 94 

°

C 

(201

°

F) or less.

OFF

Engine coolant temperature is between 
95

°

C (203

°

F) and 99

°

C (210

°

F)

LOW*

2

Engine coolant temperature is 100

°

C 

(212

°

F) or more

HIGH*

2

HO2S1 HTR (B1)

• Engine: After warming up
• Engine speed: Above 3,600 rpm

ON

Engine speed: Above 3,600 rpm

OFF

HO2S2 HTR (B1)

• Engine speed: Below 3,600 rpm after the following conditions are met.
- Engine: After warming up
- Keeping the engine speed between 3,500 and 4,000 rpm for 1 minute and at 

idle for 1 minute under no load

ON

• Engine speed: Above 3,600 rpm

OFF

VEHICLE SPEED

• Turn drive wheels and compare CONSULT-III value with the speedometer in-

dication.

Almost the same speed as 
the speedometer indication

IDL A/V LEARN

• Engine: running

Idle air volume learning has not been per-
formed yet.

YET

Idle air volume learning has already been 
performed successfully.

CMPLT

O2SEN HTR DTY

• Engine coolant temperature when engine started: More than 80

°

C (176

°

F)

• Engine speed: below 3,600 rpm

Approx. 30%

AC PRESS SEN

• Engine: Idle
• Both A/C switch and blower fan switch: ON (Compressor operates)

1.0 - 4.0V

VHCL SPEED SE

• Turn drive wheels and compare CONSULT-III value with the speedometer in-

dication.

Almost the same speed as 
the speedometer indication

SET VHCL SPD

• Engine: Running

ASCD: Operating

The preset vehicle speed is 
displayed

MAIN SW

• Ignition switch: ON

MAIN switch: Pressed

ON

MAIN switch: Released

OFF

CANCEL SW

• Ignition switch: ON

CANCEL switch: Pressed

ON

CANCEL switch: Released

OFF

RESUME/ACC SW

• Ignition switch: ON

RESUME/ACCELERATE switch: 
Pressed

ON

RESUME/ACCELERATE switch: Re-
leased

OFF

SET SW

• Ignition switch: ON

SET/COAST switch: Pressed

ON

SET/COAST switch: Released

OFF

BRAKE SW1
(ASCD brake switch)

• Ignition switch: ON

• Brake pedal: Fully released (CVT)
• Brake pedal and clutch pedal: Fully re-

leased (M/T)

ON

• Brake pedal: Slightly depressed (CVT)
• Brake pedal and/or clutch pedal: Slight-

ly depressed (M/T)

OFF

BRAKE SW2
(Stop lamp switch)

• Ignition switch: ON

Brake pedal: Fully released

OFF

Brake pedal: Slightly depressed

ON

VHCL SPD CUT

• Ignition switch: ON

NON

LO SPEED CUT

• Ignition switch: ON

NON

AT OD MONITOR

• Ignition switch: ON

OFF

AT OD CANCEL

• Ignition switch: ON

OFF

Monitor Item

Condition

Values/Status

ECM

EC-1217

< ECU DIAGNOSIS >

[MR20DE (WITHOUT EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

*: Accelerator pedal position sensor 2 signal and throttle position sensor 2 signal are converted by ECM internally. Thus, they differ from
ECM terminals voltage signal.

TERMINAL LAYOUT

PHYSICAL VALUES

NOTE:
• ECM is located behind the passenger side instrument lower panel. For this inspection, remove passenger

side instrument lower panel.

• Specification data are reference values and are measured between each terminal and ground.
• Pulse signal is measured by CONSULT-III.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECMs transistor. Use a ground other than ECM terminals, such as the ground.

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: Between 40 

km/h (25 MPH) and 144 km/h (89 
MPH)

ASCD: Operating

ON

ASCD: Not operating

OFF

Monitor Item

Condition

Values/Status

PBIA9221J

Terminal No.

Wire 

color

Description

Condition

Value

(Approx.)

+

-–

Signal name

Input/

Output

1

Ground

L

Throttle control motor 
(Open)

Output

[Ignition switch: ON]
• Engine stopped
• Shift lever: D (CVT), 1st (M/

T) 

• Accelerator pedal: Fully de-

pressed

3.2V

2

Ground

Y/R

Throttle control motor relay 
power supply

Input

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14V)

3

Ground

BR/Y

Heated oxygen sensor 1 
heater

Output

[Engine is running]
• Warm-up condition
• Engine speed: Below 3,600 

rpm

2.9 - 8.8V

[Ignition switch: ON]
• Engine stopped
[Engine is running]
• Engine speed: below 3,600 

rpm

BATTERY VOLTAGE
(11-14V)

JMBIA0324GB

JMBIA0325GB

EC-1218

< ECU DIAGNOSIS >

[MR20DE (WITHOUT EURO-OBD)]

ECM

4

Ground

P

Throttle control motor 
(Close)

Output

[Ignition switch: ON]
• Engine stopped
• Shift lever: D (CVT), 1st (M/

T) 

• Accelerator pedal: Fully re-

leased

1.8V

5

Ground

R

Heated oxygen sensor 2 
heater

Output

[Engine is running]
• Engine speed: Below 3,600 

rpm after the following con-
ditions are met

- Engine: after warming up
- Keeping the engine speed 

between 3,500 and 4,000 
rpm for 1 minute and at idle 
for 1 minute under no load

10V

[Ignition switch: ON]
• Engine stopped
[Engine is running]
• Engine speed: Above 3,600 

rpm

BATTERY VOLTAGE
(11 - 14V)

9

Ground

W/D

EVAP canister purge volume 
control solenoid valve

Output

[Engine is running]
• Idle speed
• Accelerator pedal: Not de-

pressed even slightly, after 
engine starting

BATTERY VOLTAGE

(11 - 14V)

[Engine is running]
• Engine speed: About 2,000 

rpm (More than 100 sec-
onds after starting engine.)

10

11

Ground

B

ECM ground

—

[Engine is running]
• Idle speed

Body ground

15

Ground

G

Throttle control motor relay

Output

[Ignition switch: OFF]

BATTERY VOLTAGE
(11 - 14V) 

[Ignition switch: ON]

0 - 1.0V

Terminal No.

Wire 

color

Description

Condition

Value

(Approx.)

+

-–

Signal name

Input/

Output

JMBIA0326GB

JMBIA0325GB

JMBIA0327GB

JMBIA0328GB