Reverse Signal Check for NAVI Control Unit

WARNING: This page is about a different car, the 2006 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

CHECK REVERSE LAMP
1. Turn ignition switch ON.
2. Place A/T selector lever into R-position. Do back-up lamps come on?
Yes or No
- YES : GO TO 2.
- NO : Check back-up lamp system. Refer to "BACK-UP LAMP "

CHECK REVERSE SIGNAL

Disconnect NAVI control unit connector B152.
Turn ignition switch ON.

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

NAVI CONTROL UNIT AND GROUND VOLTAGE DESCRIPTION

Terminals			Selector lever position
(+)		(-)	Selector lever position
Connector	Terminal	(-)	R-position	Other than R-position
B152	65	Ground	Battery voltage	Approx. 0V

Fig 1: Identifying Voltage Between NAVI Control Unit And Ground

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

OK or NG

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