ECM Inspection Table

Specification data are reference values and are measured between each terminal and ground.

Pulse signal is measured by CONSULT.

CAUTION: Never use ECM ground terminals when measuring input/output voltage. Doing so may result in damage to the ECMs transistor. Use a ground other than ECM terminals, such as the ground.

TERMINAL NO.

WIRE COLOR

ITEM

CONDITION

DATA (DC Voltage)

Y/B

Throttle control motor power supply

[Ignition switch: ON]

BATTERY VOLTAGE (11 - 14 V)

BR/W

A/F sensor 1 heater (Bank 1)

[Engine is running]

Warm-up condition
Idle speed

(More than 140 seconds after starting engine)

Approximately 2.9 - 8.8 V⁽¹⁾

Courtesy of NISSAN NORTH AMERICA, INC.

Throttle control motor (Open)

[Ignition switch: ON]

Engine stopped
Selector lever: D (CVT), 1st (M/T)
Accelerator pedal: Fully depressed

0 - 14 V⁽¹⁾

Courtesy of NISSAN NORTH AMERICA, INC.

L/R

Throttle control motor (Close)

[Ignition switch: ON]

Engine stopped
Selector lever: D (CVT), 1st (M/T)
Accelerator pedal: Fully released

0 - 14 V⁽¹⁾

Courtesy of NISSAN NORTH AMERICA, INC.

BR/Y

A/F sensor 1 heater (Bank 2)

[Engine is running]

Warm-up condition
Idle speed

(More than 140 seconds after starting engine)

Approximately 2.9 - 8.8 V⁽¹⁾

Courtesy of NISSAN NORTH AMERICA, INC.

9
10
11
21

Y
BR/Y
V
G

Ignition signal No. 3
Ignition signal No. 2
Ignition signal No. 1
Ignition signal No. 4

[Engine is running]

Warm-up condition
Idle speed

NOTE: The pulse cycle changes depending on rpm at idle.

0 - 0.1 V⁽¹⁾

Courtesy of NISSAN NORTH AMERICA, INC.

[Engine is running]

Warm-up condition
Engine speed: 2, 500 rpm.

0 - 0.2 V⁽¹⁾

Courtesy of NISSAN NORTH AMERICA, INC.

12
16

B
B

ECM ground

[Engine is running]

Idle speed

Body ground

Heated oxygen sensor 2 heater (Bank 1)

[Engine is running]

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.

Approximately 10 V⁽¹⁾

Courtesy of NISSAN NORTH AMERICA, INC.

[Ignition switch: ON]

Engine stopped

[Engine is running]

Engine speed: Above 3, 600 rpm.

BATTERY VOLTAGE (11 - 14 V)

B/O

Fuel pump relay

[Ignition switch: ON]

For 1 second after turning ignition switch ON

[Engine is running]

0 - 1.0 V

[Ignition switch: ON]

More than 1 second after turning ignition switch ON

BATTERY VOLTAGE (11 - 14 V)

G/Y

Throttle control motor relay

[Ignition switch: OFF]

BATTERY VOLTAGE (11 - 14 V)

[Ignition switch: ON]

0 - 1.0 V

R/L

Heated oxygen sensor 2 heater (Bank 2)

[Engine is running]

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.

Approximately 10 V⁽¹⁾

Courtesy of NISSAN NORTH AMERICA, INC.

[Ignition switch: ON]

Engine stopped

[Engine is running]

Engine speed: Above 3, 600 rpm.

BATTERY VOLTAGE (11 - 14 V)

R/B

ECM relay (Self shut-off)

[Engine is running]
[Ignition switch: OFF]

For a few seconds after turning ignition switch OFF

0 - 1.0 V

[Ignition switch: OFF]

More than a few seconds after turning ignition switch OFF

BATTERY VOLTAGE (11 - 14 V)

W/B

EVAP canister purge volume control solenoid valve

[Engine is running]

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

BATTERY VOLTAGE (11 - 14 V)⁽¹⁾

Courtesy of NISSAN NORTH AMERICA, INC.

[Engine is running]

Engine speed: Approx. 2, 000 rpm (More than 100 seconds after starting engine)

BATTERY VOLTAGE (11 - 14 V)⁽¹⁾

Courtesy of NISSAN NORTH AMERICA, INC.

29
30
31
32

R
O
GR
L

Fuel injector No. 4
Fuel injector No. 3
Fuel injector No. 2
Fuel injector No. 1

[Engine is running]

Warm-up condition
Idle speed

NOTE: The pulse cycle changes depending on rpm at idle.

BATTERY VOLTAGE (11 - 14 V)⁽¹⁾

Courtesy of NISSAN NORTH AMERICA, INC.

[Engine is running]

Warm-up condition
Engine speed: 2, 000 rpm

BATTERY VOLTAGE (11 - 14 V)⁽¹⁾

Courtesy of NISSAN NORTH AMERICA, INC.

Heated oxygen sensor 2 (Bank 1)

[Engine is running]

Revving engine from idle to 3, 000 rpm quickly 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.

0 - Approximately 1.0 V

Heated oxygen sensor 2 (Bank 2)

[Engine is running]

Revving engine from idle to 3, 000 rpm quickly 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.

0 - Approximately 1.0 V

Sensor ground
(Heated oxygen sensor 2)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

Sensor ground
(Throttle position sensor)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

Throttle position sensor 1

[Ignition switch: ON]

Engine stopped
Selector lever: D (CVT), 1st (M/T)
Accelerator pedal: Fully released

More than 0.36 V

[Ignition switch: ON]

Engine stopped
Selector lever: D (CVT), 1st (M/T)
Accelerator pedal: Fully depressed

Less than 4.75 V

Throttle position sensor 2

[Ignition switch: ON]

Engine stopped
Selector lever: D (CVT), 1st (M/T)
Accelerator pedal: Fully released

Less than 4.75 V

[Ignition switch: ON]

Engine stopped
Selector lever: D (CVT), 1st (M/T)
Accelerator pedal: Fully depressed

More than 0.36 V

Refrigerant pressure sensor

[Engine is running]

Warm-up condition
Both A/C switch and blower fan switch: ON (Compressor operates)

1.0 - 4.0 V

R/G

Sensor ground
(Refrigerant pressure sensor)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

A/F sensor 1 (Bank 1)

[Engine is running]

Warm-up condition
Engine speed: 2, 000 rpm

Approximately 1.8 V
Output voltage varies with air fuel ratio.

Engine coolant temperature sensor

[Engine is running]

Approximately 0 - 4.8 V
Output voltage varies with engine coolant temperature.

Sensor power supply
(Throttle position sensor)

[Ignition switch: ON]

Approximately 5 V

A/F sensor 1 (Bank 1)

[Ignition switch: ON]

Approximately 2.2 V

BR/Y

Intake air temperature sensor

[Engine is running]

Approximately 0 - 4.8 V
Output voltage varies with intake air temperature.

Sensor ground
(Engine coolant temperature sensor)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

A/F sensor 1 (Bank 2)

[Engine is running]

Warm-up condition
Engine speed: 2, 000 rpm

Approximately 1.8 V
Output voltage varies with air fuel ratio.

Sensor ground

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

A/F sensor 1 (Bank 2)

[Ignition switch: ON]

Approximately 2.2 V

Mass air flow sensor

[Engine is running]

Warm-up condition
Idle speed

0.9 - 1.1 V

[Engine is running]

Warm-up condition
Engine speed: 2, 500 rpm

1.4 - 1.7 V

G/Y

Sensor power supply
[Camshaft position sensor (PHASE)]

[Ignition switch: ON]

Approximately 5 V

Sensor ground
[Crankshaft position sensor (POS)]

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

Knock sensor

[Engine is running]

Idle speed

Approximately 2.5V

Sensor ground
[Camshaft position sensor (PHASE)]

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

Crankshaft position sensor (POS)

[Engine is running]

Warm-up condition
Idle speed

NOTE: The pulse cycle changes depending on rpm at idle.

Approximately 4.0 V⁽¹⁾

Courtesy of NISSAN NORTH AMERICA, INC.

[Engine is running]

Engine speed: 2, 000 rpm

Approximately 4.0 V⁽¹⁾

Courtesy of NISSAN NORTH AMERICA, INC.

Sensor ground
(Knock sensor)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

Camshaft position sensor (PHASE)

[Engine is running]

Warm-up condition
Idle speed

NOTE: The pulse cycle changes depending on rpm at idle.

1.0 - 2.0 V⁽¹⁾

Courtesy of NISSAN NORTH AMERICA, INC.

[Engine is running]

Engine speed: 2, 000 rpm.

1.0 - 2.0 V⁽¹⁾

Courtesy of NISSAN NORTH AMERICA, INC.

G/W

Sensor power supply
(Refrigerant pressure sensor)

[Ignition switch: ON]

Approximately 5 V

G/R

Sensor power supply
[Crankshaft position sensor (POS)]

[Ignition switch: ON]

Approximately 5 V

Y/R

Power supply for ECM (Back-up)

[Ignition switch: OFF]

BATTERY VOLTAGE (11 - 14 V)

Y/R

Intake valve timing control solenoid valve

[Engine is running]

Warm-up condition
Idle speed

BATTERY VOLTAGE (11 - 14 V)

[Engine is running]

Warm-up condition
When revving engine up to 2, 000 rpm quickly

7 - 10 V⁽¹⁾

Courtesy of NISSAN NORTH AMERICA, INC.

Accelerator pedal position sensor 1

[Ignition switch: ON]

Engine stopped
Accelerator pedal: Fully released

0.6 - 0.9 V

[Ignition switch: ON]

Engine stopped
Accelerator pedal: Fully depressed

3.9 - 4.7 V

Y/G

Accelerator pedal position sensor 2

[Ignition switch: ON]

Engine stopped
Accelerator pedal: Fully released

0.3 - 0.6 V

[Ignition switch: ON]

Engine stopped
Accelerator pedal: Fully depressed

1.95 - 2.4 V

Sensor power supply
(Accelerator pedal position sensor 1)

[Ignition switch: ON]

Approximately 5 V

B/W

Sensor ground
(Accelerator pedal position sensor 1)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

L/Y

ASCD steering switch

[Ignition switch: ON]

ASCD steering switch: OFF

Approximately 4 V

[Ignition switch: ON]

MAIN switch: Pressed

Approximately 0 V

[Ignition switch: ON]

CANCEL switch: Pressed

Approximately 1 V

[Ignition switch: ON]

RESUME/ACCELERATE switch: Pressed

Approximately 3 V

[Ignition switch: ON]

SET/COAST switch: Pressed

Approximately 2 V

R/Y

EVAP control system pressure sensor

[Ignition switch: ON]

Approximately 1.8 - 4.8 V

BR/Y

Sensor power supply
(Accelerator pedal position sensor 2)

[Ignition switch: ON]

Approximately 5 V

P/L

DATA link connector

V/W

Sensor power supply
(EVAP control system pressure sensor)

[Ignition switch: ON]

Approximately 5 V

B/Y

Sensor ground
(ASCD steering switch)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

B/R

Ignition switch

[Ignition switch: OFF]

0 V

[Ignition switch: ON]

BATTERY VOLTAGE (11 - 14 V)

G/O

Fuel tank temperature sensor

[Engine is running]

Approximately 0 - 4.8 V
Output voltage varies with fuel tank temperature

V/R

Sensor ground
(EVAP control system pressure sensor)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

CAN communication line

100

Sensor ground
(Accelerator pedal position sensor 2)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

102

BR/R

PNP signal

[Ignition switch: ON]

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

BATTERY VOLTAGE (11 - 14 V)

[Ignition switch: ON]

Except above

Approximately 0 V

104

B/P

Sensor ground
(Fuel tank temperature sensor)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

105

Power supply for ECM

[Ignition switch: ON]

BATTERY VOLTAGE (11 - 14 V)

106

R/G

Stop lamp switch

[Ignition switch: OFF]

Brake pedal: Fully released

Approximately 0 V

[Ignition switch: OFF]

Brake pedal: Slightly depressed

BATTERY VOLTAGE (11 - 14 V)

107
108

B
B

ECM ground

[Engine is running]

Idle speed

Body ground

109

L/Y

EVAP canister vent control valve

[Ignition switch: ON]

BATTERY VOLTAGE (11 - 14 V)

110

G/B

ASCD brake switch

[Ignition switch: ON]

Brake pedal: Slightly depressed (CVT)
Brake pedal and/or clutch pedal: Slightly depressed (M/T)

Approximately 0 V

[Ignition switch: ON]

Brake pedal: Fully released (CVT)
Brake pedal and clutch pedal: Fully released (M/T)

BATTERY VOLTAGE (11 - 14 V)

111
112

B
B

ECM ground

[Engine is running]

Idle speed

Body ground

⁽¹⁾	Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)