Illumination Signal Check for Display 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 ILLUMINATION SIGNAL

Turn ignition switch ON.

Check voltage between display control unit and ground.

DISPLAY CONTROL UNIT AND GROUND VOLTAGE DESCRIPTION

Terminals			Lighting switch position
(+)		(-)	Lighting switch position
Connector	Terminal	(-)	1st or 2nd position	OFF
M94	14	Ground	Battery voltage	Approx. 0V

Fig 1: Identifying Voltage Between Display Control Unit And Ground

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

OK or NG

OK : Replace display control unit. Refer to "DISPLAY CONTROL UNIT ".
NG : Check harness for open or short between display control unit and IPDM E/R.