Ignition Signal: Wiring Diagram

For PG-POWER references, see SYSTEM WIRING DIAGRAMS (M35) or SYSTEM WIRING DIAGRAMS (M45).

Fig 1: 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.

ECM TERMINAL INSPECTION CHART

TERMINAL NO.	WIRE COLOR	ITEM	CONDITION	DATA (DC Voltage)
111	SB	ECM relay (Self shut-off)	[Engine is running] [Ignition switch: OFF] For a few seconds after turning ignition switch OFF	0 - 1.5V
111	SB	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 R	Power supply for ECM	[Ignition switch: ON]	BATTERY VOLTAGE (11 - 14V)

Fig 2: 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.

ECM TERMINAL INSPECTION CHART

TERMINAL NO.

WIRE COLOR

ITEM

CONDITION

DATA (DC Voltage)

46
60
61
62

L/O
V/W
P
Y/R

Ignition signal No. 7
Ignition signal No. 5
Ignition signal No. 3
Ignition signal No. 1

[Engine is running]

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

0 - 0.2V⁽¹⁾

[Engine is running]

Warm-up condition
Engine speed: 2,000 rpm

0.1 - 0.4V⁽¹⁾

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

Fig 3: 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.

ECM TERMINAL INSPECTION CHART

TERMINAL NO.

WIRE COLOR

ITEM

CONDITION

DATA (DC Voltage)

65
79
80
81

BR/R
GR/R
GR/B
G/R

Ignition signal No. 8
Ignition signal No. 6
Ignition signal No. 4
Ignition signal No. 2

[Engine is running]

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

0 - 0.2V⁽¹⁾

[Engine is running]

Warm-up condition
Engine speed: 2,000 rpm

0.1 - 0.4V⁽¹⁾

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