A/C and AV Switch Assembly Self-Diagnosis

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

A/C and AV switch assembly self-diagnosis function

The ON/OFF operation (continuity) of each switch in the A/C and AV switch assembly can be checked.

Self-diagnosis mode

Press the "BACK" switch and the "UP" switch within 10 seconds after turning the ignition switch from OFF to ACC and hold them for 3 seconds or more. Then the buzzer sounds, all indicators of the preset switch illuminate, and the self-diagnosis mode starts.
The continuity of each switch and control dials (A/C and AV switch assembly only) at the ON position can be checked by pressing each switch and turning each control dial. The buzzer sounds and LED's will illuminate if the switch is normal.

Fig 1: Locating Back And Up Switches
Courtesy of NISSAN NORTH AMERICA, INC.

Finishing self-diagnosis mode

Self-diagnosis mode is canceled when turning the ignition switch OFF.