The most likely reason is a bad circuit in the heat / A/C dash control. There's a way to check it - there are 2 12g wires that plug into the control unit. These complete the ground circuit that goes to the rear A/C fan relay. There should be continuity from the control unit when the rear a/c is switched on.
By jumping the two wires, the rear A/C will work with the controller circuit disconnected, but "off" must be selected or the fan will continue to run with the engine off.
where the relay for rear blower in Nissan quest 1997
hi the ac blower motor from Nissan quest 2004 is going to on the back is on the 3rd panel raight side
The 2008 Nissan Quest has 65.9 in. of rear shoulder room.
The 2014 Nissan Quest has 66.0 in. of rear hip room.
The 2011 Nissan Quest has 63.2 in. of rear shoulder room.
The 2002 Nissan Quest has 36.4 in. of rear leg room.
The 2013 Nissan Quest has 41.6 in. of rear head room.
The 2005 Nissan Quest has 41.3 in. of rear leg room.
The 2011 Nissan Quest has 36.7 in. of rear leg room.
The 2007 Nissan Quest has 67.4 in. of rear hip room.
The 2001 Nissan Quest has 39.9 in. of rear head room.
The 2008 Nissan Quest has 42.1 in. of rear leg room.