1. Check Harness

WARNING: This page is about a different car, the 2004 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect connectors of AV control unit and combination meter.
Check continuity between AV control unit harness connector M77 terminal 33 (OR/L) and combination meter harness connector M41 terminal 17 (OR/L).
Continuity should exist.

Fig 1: Checking Harness
Courtesy of NISSAN MOTOR CO., U.S.A.
Check continuity between AV control unit harness connector M77 terminal 33 (OR/L) and ground.
Continuity should not exist.

OK or NG

OK: GO TO 2 .
NG: Check connector housings for disconnected or loose terminals.
- Repair harness or connector.