Ignition Signal: Wiring Diagram

Fig 1: Identifying Wiring Diagram (EC-IGNSYS-01)

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

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

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.

WIRE COLOR AND TERMINAL NO. DESCRIPTION

TERMINAL NO.	WIRE COLOR	ITEM	CONDITION	DATA (DC Voltage)
111	W/G	ECM relay (Self shut-off)	[Engine is running] [Ignition switch: OFF] For a few seconds after turning ignition switch OFF	0 - 1.0V
111	W/G	ECM relay (Self shut-off)	[Ignition switch: OFF] More than a few seconds after turning ignition switch OFF	BATTERY VOLTAGE (11 - 14V)
119 120	R/G	Power supply for ECM	[Ignition switch: ON]	BATTERY VOLTAGE (11 - 14V)

Fig 2: Identifying Wiring Diagram (EC-IGNSYS-02)

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.

WIRE COLOR AND TERMINAL NO. DESCRIPTION

TERMINAL NO.

WIRE COLOR

ITEM

CONDITION

DATA (DC Voltage)

62
81

BR
PU

Ignition signal No. 1
Ignition signal No. 2

[Engine is running]

Warm-up condition
Idle speed

0-0.1V⁽¹⁾

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

[Engine is running]

Warm-up condition
Engine speed: 2, 000 rpm.

0 - 0.2V⁽¹⁾

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

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

Fig 3: Identifying Wiring Diagram (EC-IGNSYS-03)

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.

WIRE COLOR AND TERMINAL NO. DESCRIPTION

TERMINAL NO.

WIRE COLOR

ITEM

CONDITION

DATA (DC Voltage)

61
80

L/W
GY/R

Ignition signal No. 3
Ignition signal No. 4

[Engine is running]

Warm-up condition
Idle speed

0-0.1V⁽¹⁾

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

[Engine is running]

Warm-up condition
Engine speed: 2, 000 rpm.

0 - 0.2V⁽¹⁾

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

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