Standard By Circuit Tester And Oscilloscope

WARNING: This page is about a different car, the 2008 Infiniti M45 and 2008 Infiniti M35. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: When checked using a circuit tester for voltage measurement, connector terminals should not be forcefully extended.

CONTROL UNIT INPUT/OUTPUT SIGNAL STANDARD CHART

Terminal		Measuring point	Measuring condition		Standard
+ (wire color)	-	Measuring point	Measuring condition		Standard
1 (GR)	Ground	IGN	Ignition switch ON.		Battery voltage (Approx. 12 V)
2 (B)		Ground	-		-
3 (L)		Vehicle speed signal (2-pulse)	At 40 km/h (25MPH)		Courtesy of NISSAN MOTOR CO., U.S.A.
5 (Y)		Engine speed signal	At idle after warming up		Courtesy of NISSAN MOTOR CO., U.S.A.
5 (Y)		Engine speed signal	At approx. 2,000 RPM		Courtesy of NISSAN MOTOR CO., U.S.A.
7 (G)		Power steering solenoid valve	Normal (Vehicle speed)	0 km/h (0 MPH)	Approx. 4.4 - 6.6 V
			Normal (Vehicle speed)	100 km/h (62 MPH)	Approx. 2.4 - 3.6 V
			In fail-safe mode (Engine speed)	0 - 1,500 RPM	Approx. 4.4 - 6.6 V
				1,500 - 3,000 RPM	Approx. 3.5 V
				More than 3,000 RPM	Approx. 2.1 V