Bank 1

Fig 1: EC-FUELB1-01 - Wiring Diagram

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

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

Pulse signal is measured by CONSULT-II.

CAUTION: Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in damage to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

INPUT/OUTPUT VOLTAGE CHART

TERMINAL NO.

WIRE COLOR

ITEM

CONDITION

DATA (DC Voltage)

O/B

A/F sensor 1 heater (bank 1)

[Engine is running]

Warm-up condition
Idle speed

Approximately 5V⁽¹⁾

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

BR/R

A/F sensor 1 (bank 1)

[Engine is running]

Warm-up condition
Idle speed

Approximately 3.1V

BR/G

Approximately 2.6V

LG/B

Approximately 2.3V

P/B

Approximately 2.3V

21
22
23
44

O/L
BR
GR/W
O

Fuel injector No. 5
Fuel injector No. 3
Fuel injector No. 1
Fuel injector No. 7

[Engine is running]

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

BATTERY VOLTAGE (11 - 14V)⁽¹⁾

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

[Engine is running]

Warm-up condition
Engine speed: 2, 000 rpm

BATTERY VOLTAGE (11 - 14V)⁽¹⁾

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

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