Nissan Tiida C11. Manual - part 643

EC-1222

< ECU DIAGNOSIS >

[K9K]

ECM

90

(Y)

128

(B)

Electric throttle control actu-
ator

Input

[Engine is running]
• Idle speed

Duty signal

[Engine is running]
• For a few seconds after turn-

ing ignition switch OFF

[Ignition switch: OFF]
• More than a few seconds af-

ter turning ignition switch 
OFF

94

(LG)

128

(B)

Electric throttle control actu-
ator

Output

[Engine is running]
• Warm-up condition
• Idle speed

Approximately 0V

95

(G)

128

(B)

EGR volume control valve
(DC motor)

Output

[Ignition switch: OFF]
• For a few seconds after the 

following conditions are met 
and ignition switch is turned 
OFF.

- Warm-up condition
- Start engine and let it idle for 

3 minutes.
NOTE:
The duty cycle changes de-
pending on EGR volume 
control valve operation.

1 - 14V 

96

(L)

128

(B)

EGR volume control valve
(DC motor)

Output

[Engine is running]
• Warm-up condition
• Idle speed

12.8V

[Ignition switch: OFF]
• For a few seconds after turn-

ing ignition switch OFF

0V

98

(GR)

128

(B)

ASCD switch

Input

[Ignition switch: ON]
• ASCD switch: ON

BATTERY VOLTAGE
(11 - 14V)

[Ignition switch: ON]
• ASCD switch: OFF

Approximately 0V

99

(P)

128

(B)

CAN communication line

Input/

Output

—

—

100

(L)

128

(B)

CAN communication line

Input/

Output

—

—

108

(G)

128

(B)

ASCD clutch switch

Input

[Ignition switch: ON]
• Clutch pedal: Slightly de-

pressed

Approximately 0V

[Ignition switch: ON]
• Clutch pedal: Fully released

BATTERY VOLTAGE
(11 - 14V)

110

(R)

111

(B)

ASCD steering switch

Input

[Ignition switch: ON]
• ASCD steering switch: OFF

Approximately 5V

[Ignition switch: ON]
• RESUME switch: Pressed

Approximately 3.8V

[Ignition switch: ON]
• SET+ switch: Pressed

Approximately 2.4V

[Ignition switch: ON]
• SET– switch: Pressed

Approximately 1.3V

[Ignition switch: ON]
• CANCEL switch: Pressed

Approximately 0V

Terminal No.

Description

Condition

Value

(Approx.)

+

-–

Signal name

Input/

Output

MBIB1822E

ECM

EC-1223

< ECU DIAGNOSIS >

[K9K]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)

Conformity Check

INFOID:0000000001538653

MAIN SCREEN

111

B

—

ASCD steering switch 
ground

—

—

—

115

(R)

128

(B)

Stop lamp switch

—

[Ignition switch: OFF]
• Brake pedal: Fully released

Approximately 0V

[Ignition switch: OFF]
• Brake pedal: Slightly de-

pressed

BATTERY VOLTAGE
(11 - 14V)

116

(GR)

128

(B)

ASCD brake switch

Input

[Ignition switch: ON]
• Brake pedal: Slightly de-

pressed

Approximately 0V

[Ignition switch: ON]
• Brake pedal: Fully released

BATTERY VOLTAGE(11 - 14V)

118

(SB)

120

(Y)

Sensor power supply
(Accelerator pedal position 
sensor 2)

—

[Ignition switch: ON]

Approximately 5V

119

(GR)

120

(Y)

Accelerator pedal position 
sensor 2

Input

[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully re-

leased

0.3 - 0.6V

[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully de-

pressed

1.95 - 2.4V

120

(Y)

—

Sensor ground
(Accelerator pedal position 
sensor 2)

—

—

—

122

(P: 

LHD)

(O: 

RHD)

127

(R)

Sensor power supply
(Accelerator pedal position 
sensor 1)

—

[Ignition switch: ON]

Approximately 5.0V

123

(B)

124

(B)

125

(B)

128

(B)

—

ECM ground

—

—

—

126

(G)

127

(R)

Accelerator pedal position 
sensor 1

Input

[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully re-

leased

0.6 - 0.9V

[Ignition switch ON]
• Engine stopped
• Accelerator pedal: Fully de-

pressed

3.9 - 4.7V

127

(R)

—

Sensor ground
(Accelerator pedal position 
sensor 1)

—

—

—

Terminal No.

Description

Condition

Value

(Approx.)

+

-–

Signal name

Input/

Output

EC-1224

< ECU DIAGNOSIS >

[K9K]

ECM

Test Condition: Engine Stopped and Ignition Switch ON

Order

Function

Parameter

Display and notes

Trouble diagnosis

1

Battery voltage

BATTERY VOLTAGE

12 V < BATTERY VOLTAGE < 
14.4 V

In the event of a malfunction, per-
form the trouble diagnosis for 
CHARGING SYSTEM.

2

Engine speed

ENGINE SPEED

Indicates the engine's rotational 
speed in rpm.

In the event of a malfunction, per-
form the trouble diagnosis for DTC 
P0335 CKP SENSOR.

3

Engine coolant tem-
perature

WATER TEMP

Close to ambient temperature 
(cold engine).
Indicates the engine coolant tem-
perature in 

°

 C.

In the event of a malfunction, per-
form the trouble diagnosis for DTC 
P0115 ETC SENSOR.

4

Accelerator pedal po-
sition

ACCEL/PDL POS

0%= ACCEL/PDL POS < 100%
Indicates the percentage of the 
pedal position between no load 
and full load position

In the event of a malfunction, per-
form the trouble diagnosis for APP 
SENSOR (DTC P0225, and P2120) 
and SENSOR POWER SUPPLY 
(DTC P0641 and P0651).

5

Inlet air temperature

INLET AIR TEM

Indicates the intake air tempera-
ture in 

°

C. This information is pro-

vided by the IAT sensor.

In the event of a malfunction, per-
form the trouble diagnosis for DTC 
P0110 IAT SENSOR.

6

Fuel pump tempera-
ture

FUEL TEMP

Close to ambient temperature 
(cold engine).
Indicates the fuel pump tempera-
ture in 

°

 C.

In the event of a malfunction, per-
form the trouble diagnosis for DTC 
P0180 FTT SENSOR.

7

Intake air pressure

ATOMOS PRESS

700 mbar < ATOMOS PRESS < 
1100 mbar
Indicates the ambient barometric 
pressure in mbar. The sensor is 
incorporated in the ECM.

If not consistent, check ATOMOS 
PRESS = INLET PRESS = local 
ambient barometric pressure, with 
the engine stopped and ignition 
switch ON.

INLET PRESS

Indicates the pressure in the tur-
bocharger in mbar.

8

Fuel rail pressure

RAIL PRESSURE

Approximately 0 bar
Indicates the fuel rail pressure in 
bar of the diesel fuel in the fuel 
rail.
This pressure is supplied by the 
fuel rail pressure sensor.

In the event of a malfunction, per-
form the trouble diagnosis for DTC 
P0190 and P1089 FRP SENSOR.

9

Engine

MOTOR

STOPPED
Indicates the current status of the 
engine.
• STOPPED
• STARTER
• ACTIVATED
• RUNNING

NONE.

ECM

EC-1225

< ECU DIAGNOSIS >

[K9K]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Test Condition: Engine at Idle

10

Engine immobilizer

ENGINE IMMOBI

INACTIVE
Indicates the status of the immo-
bilizer system.
• INACTIVE: The ECM has rec-

ognized the immobilizer code 
transmitted by the Intelligent 
Key unit or BCM.

• ACTIVE: The ECM does not 

recognize the immobilizer code 
transmitted by the Intelligent 
Key unit or BCM.

If ACTIVE, perform the trouble diag-
nosis for NATS.

11

Vehicle speed

VEHICLE SPEED

0 km/h (mph)
Indicates the vehicle speed in km/
h (mph). This parameter is trans-
mitted by the “ABS actuator and 
electric unit (control unit)” or com-
bination meter via CAN communi-
cation line.

Perform the trouble diagnosis for 
CAN communication line. Perform 
the trouble diagnosis for “ABS actu-
ator and electric unit (control unit)” 
or combination meter.

Order

Function

Parameter

Display and notes

Trouble diagnosis

Order

Function

Parameter 

Display and notes

Trouble diagnosis

1

Battery voltage

BATTERY VOLTAGE

13V < BATTERY VOLTAGE < 
16V

In the event of a malfunction, per-
form the trouble diagnosis for 
CHARGING SYSTEM.

2

Engine speed

ENGINE SPEED

About 800 rpm
Indicates the engine's rotational 
speed in rpm.

In the event of a malfunction, per-
form the trouble diagnosis for DTC 
P0335 CKP SENSOR.

3

Engine coolant tem-
perature

WATER TEMP

Indicates the engine coolant 
temperature in 

°

C.

In the event of a malfunction, per-
form the trouble diagnosis for DTC 
P0115 ETC SENSOR.

4

Accelerator pedal 
position

ACCEL/PDL POS

0%= ACCEL/PDL POS < 100%
Indicates the percentage of the 
pedal position between no load 
and full load position

In the event of a malfunction, per-
form the trouble diagnosis for APP 
SENSOR (DTC P0225, and P2120) 
and SENSOR POWER SUPPLY 
(DTC P0641 and P0651).

5

Inlet air tempera-
ture

INLET AIR TEM

Indicates the intake air tempera-
ture in 

°

C. This information is 

provided by the IAT sensor.

In the event of a malfunction, per-
form the trouble diagnosis for DTC 
P0110 IAT SENSOR.

6

Fuel pump temper-
ature

FUEL TEMP

Indicates the intake air tempera-
ture in 

°

C. This information is 

provided by the fuel pump tem-
perature sensor.

In the event of a malfunction, per-
form the trouble diagnosis for DTC 
P0180 FTT SENSOR.

7

Intake air pressure

ATOMOS PRESS

700 mbar < ATOMOS PRESS < 
1100 mbar
Indicates the ambient barometric 
pressure in mbar. The sensor is 
incorporated in the ECM.

If not consistent, check ATOMOS 
PRESS = INLET PRESS = local am-
bient barometric pressure, with the 
engine stopped and ignition switch 
ON.

INLET PRESS

Indicates the pressure in the tur-
bocharger in mbar.
INLET PRESS = local ambient 
barometric pressure.

8

Fuel rail pressure

RAIL PRESSURE

Indicates the fuel rail pressure in 
bar of the diesel fuel in the fuel 
rail.
This pressure measured by the 
fuel rail pressure sensor.

In the event of a malfunction, per-
form the trouble diagnosis for DTC 
P0190 and P1089 FRP SENSOR.