Reverse Signal Check for NAVI Control Unit

WARNING: This page is about a different car, the 2005 Infiniti FX45 and 2005 Infiniti FX35. 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?
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.

Fig 1: Terminal Voltage Specification
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Checking Voltage Between NAVI Control Unit And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

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