Wireless remote control does not work (source select buttons)

WARNING: This page is about a different car, the 2009 Acura MDX, 2008 Acura MDX, and 2007 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Check the wireless remote control battery condition first.
You need to switch the audio unit REAR PWR button on for the rear display, remote controls, and sound to operate.

Check the wireless remote control operation.
Does the source select button operate?

YES -Operation is normal at this time.

NO -Go to step 2.
Check the diagnosis menu 1. CONNECT status of the rear entertainment system self-diagnostic (see HOW TO ENTER FOR SELF-DIAGNOSTIC FUNCTION WITH THE WIRELESS REMOTE CONTROL ).
Is the device connect condition OK?

YES - Replace the wireless remote control.

NO - Repair the connection for the device that has a connection error indicated.