1. Check Power Supply For Unified Meter And A/C Amp. Side

WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

Turn ignition switch ON.
Check voltage between unified meter and A/C amp. harness connector M89 terminal 54 (L/W) and ground. See Wiring Diagrams and Figure and Fig 1 .
1. 54 - Ground: Battery voltage

OK or NG

OK, GO TO 2.
NG, Replace unified meter and A/C amp.

Fig 1: Check Power Supply For Unified Meter And A/C Amp.

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