The rear venilation system on my 2002 GMC envoy do not work. What could be the...

Joe C

Rookie
...problem? I replaced the blower motor resistor this summer. Now the front ventilation system works fine. AC/Vents/Heat all work. The rear ventilation blows no air at all, regardless of setting. Do I check fuses and connections first, and then replace the rear blower motor assembly, or could there be another possibility?
 
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