ECM Inspection Table

WARNING: This page is about a different variant/trim than selected.

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 damage to the ECMs transistor. Use a ground other than ECM terminals, such as the ground.

WIRE COLOR REFERENCE CHART

TERMINAL NO.

WIRE COLOR

ITEM

CONDITION

DATA (DC Voltage)

Throttle control motor (Open)

[Ignition switch: ON]

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

Approximately 3.2 V⁽¹⁾

Courtesy of NISSAN MOTOR CO., U.S.A.

Y/B

Throttle control motor power supply

[Ignition switch: ON]

BATTERY VOLTAGE (11 - 14 V)

L/W

Tumble control vale motor power supply

[Ignition switch: ON]

BATTERY VOLTAGE (11 - 14 V)

L/R

Throttle control motor (Close)

[Ignition switch: ON]

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

Approximately 1.8 V⁽¹⁾

Courtesy of NISSAN MOTOR CO., U.S.A.

B/W

Heated oxygen sensor 2 heater

[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 MOTOR CO., U.S.A.

[Ignition switch: ON]

Engine stopped

[Engine is running]

Engine speed: Above 3, 600 rpm.

BATTERY VOLTAGE (11 - 14 V)

Tumble control valve motor (Open)

[Ignition switch: ON → OFF]

For a few seconds after turning ignition switch ON

0 V
↓
BATTERY VOLTAGE (11 - 14 V)
↓
0 V

Tumble control valve motor (Close)

[Ignition switch: OFF → ON]

For a few seconds after turning ignition switch ON

0 V
↓
BATTERY VOLTAGE (11 - 14 V)
↓
0 V

BR/W

A/F sensor 1 heater

[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 MOTOR CO., U.S.A.

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 MOTOR CO., U.S.A.

[Engine is running]

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

Approximately 10 V⁽¹⁾

Courtesy of NISSAN MOTOR CO., U.S.A.

ECM ground

[Engine is running]

Idle speed

Body ground

Sensor ground (Engine oil temperature sensor)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

BR/R

PNP signal

[Ignition switch: ON]

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

BATTERY VOLTAGE (11 - 14 V)

[Ignition switch: ON]

Except above

Approximately 0 V

G/Y

Throttle control motor relay

[Ignition switch: OFF]

BATTERY VOLTAGE (11 - 14 V)

[Ignition switch: ON]

0 - 1.0 V

17
18
21
22

V
BR/Y
G
Y

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

[Engine is running]

Warm-up condition
Idle speed
NOTE: The pulse cycle changes depending on rpm at idle.

0 - 0.3 V⁽¹⁾

Courtesy of NISSAN MOTOR CO., U.S.A.

[Engine is running]

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

0.2 - 0.5 V⁽¹⁾

Courtesy of NISSAN MOTOR CO., U.S.A.

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)

25
29
30
31

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 MOTOR CO., U.S.A.

[Engine is running]

Warm-up condition
Engine speed: 2, 000 rpm

BATTERY VOLTAGE (11 - 14 V)⁽¹⁾

Courtesy of NISSAN MOTOR CO., U.S.A.

Engine oil temperature sensor

[Engine is running]

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

L/Y

EVAP canister vent control valve

[Ignition switch: ON]

BATTERY VOLTAGE (11 - 14 V)

R/G

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)

Throttle position sensor 1

[Ignition switch: ON]

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

More than 0.36 V

[Ignition switch: ON]

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

Less than 4.75 V

Throttle position sensor 2

[Ignition switch: ON]

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

Less than 4.75 V

[Ignition switch: ON]

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

More than 0.36 V

L/G

Tumble control valve position sensor

[Engine is running]

Engine coolant temperature: Between 5°C (41°F) and 45°C (113°F)
Engine speed: Less than 3, 200 rpm
Accelerator pedal: Fully released

Less than 1.2 V

[Engine is running]

Engine coolant temperature: Between 5°C (41°F) and 45°C (113°F)
Accelerator pedal: Slightly depressed

More than 2.9 V

Sensor ground (Throttle position sensor)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

Knock sensor

[Engine is running]

Idle speed

Approximately 2.5 V

Engine coolant temperature sensor

[Engine is running]

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

Sensor ground (Knock sensor)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 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/Y

EVAP control system pressure sensor

[Ignition switch: ON]

Approximately 1.8 - 4.8 V

G/O

Fuel tank temperature sensor

[Engine is running]

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

Sensor ground (Engine coolant temperature sensor)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

Mass air flow sensor

[Engine is running]

Warm-up condition
Idle speed

0.9 - 1.2 V

[Engine is running]

Warm-up condition
Engine speed: 2, 500 rpm

1.5 - 1.8 V

BR/Y

Intake air temperature sensor

[Engine is running]

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

L/R

Sensor ground (Tumble control valve position sensor)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

R/G

Sensor ground (Refrigerant pressure sensor)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

L/R

A/F sensor 1

[Engine is running]

Warm-up condition
Engine speed: 2, 000 rpm

Approximately 1.8 V Output voltage varies with air fuel ratio.

Heated oxygen sensor 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

V/R

Sensor ground (EVAP control system pressure sensor)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

B/W

Sensor ground (Mass air flow sensor)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

L/G

A/F sensor 1

[Ignition switch: ON]

Approximately 2.2 V

Sensor ground (Intake air temperature sensor)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

B/Y

Sensor ground (Heated oxygen sensor 2)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

Sensor ground (Fuel tank temperature sensor)

[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 MOTOR CO., U.S.A.

[Engine is running]

Engine speed: 2, 000 rpm

Approximately 4.0 V⁽¹⁾

Courtesy of NISSAN MOTOR CO., U.S.A.

Sensor ground [Crankshaft position sensor (POS)]

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

B/R

Sensor ground [Camshaft position sensor (PHASE)]

[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 MOTOR CO., U.S.A.

[Engine is running]

Engine speed: 2, 000 rpm.

1.0 - 2.0 V⁽¹⁾

Courtesy of NISSAN MOTOR CO., U.S.A.

Y/R

Power supply for ECM (Back-up)

[Ignition switch: OFF]

BATTERY VOLTAGE (11 - 14 V)

LG/B

Sensor power supply (Tumble control valve position sensor)

[Ignition switch: ON]

Approximately 5 V

Sensor power supply (Throttle position sensor)

[Ignition switch: ON]

Approximately 5 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 MOTOR CO., U.S.A.

G/W

Sensor power supply (Refrigerant pressure sensor)

[Ignition switch: ON]

Approximately 5 V

Sensor power supply [Crankshaft position sensor (POS)]

[Ignition switch: ON]

Approximately 5 V

V/W

EVAP control system pressure sensor power supply

[Ignition switch: ON]

Approximately 5 V

G/Y

Sensor power supply [Camshaft position sensor (PHASE)]

[Ignition switch: ON]

Approximately 5 V

CAN communication line

P/L

DATA link connector

B/R

Ignition switch

[Ignition switch: OFF]

0 V

[Ignition switch: ON]

BATTERY VOLTAGE (11 - 14 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

B/Y

Sensor ground (ASCD steering switch)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

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)

100

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)

102

BR/Y

Sensor power supply (Accelerator pedal position sensor 2)

[Ignition switch: ON]

Approximately 5 V

103

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

104

B/P

Sensor ground (Accelerator pedal position sensor 2)

[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

Sensor power supply (Accelerator pedal position sensor 1)

[Ignition switch: ON]

Approximately 5 V

107
108
109

B
B
B

ECM ground

[Engine is running]

Idle speed

Body ground

110

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

111

B/W

Sensor ground (Accelerator pedal position sensor 1)

[Engine is running]

Warm-up condition
Idle speed

Approximately 0 V

112

ECM ground

[Engine is running]

Idle speed

Body ground

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