Reverse Signal Check for NAVI Control Unit

WARNING: This page is about a different car, the 2003 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.

CHECK REVERSE LAMP
1. Turn ignition switch ON.
2. Selector lever into R-position. Does "R" in the shift position indicator come on?
YES or NO
1. YES : GO TO 2.
2. NO : Check back-up lamp system. Refer to BACK-UP LAMP .

CHECK REVERSE SIGNAL

With the selector lever in R-position, check voltage between NAVI control unit and ground.

NAVI CONTROL UNIT REVERSE SIGNAL CHECK CHART

Terminals			Selector lever position
		(+)			(-)
Connector	Terminal (Wire color)	R-position	Selector lever position	Other than R-position	(-)
M63	27 (G/W)	Ground	Battery voltage	Approx. 0V

OK or NG

OK : Replace NAVI control unit.
NG : Check harness for open or short between NAVI control unit and back-up lamp position relay.

Fig 1: Checking Voltage Between NAVI Control Unit Connector Terminal And Ground

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