Rear AC/ heat on 2007 m1151a1

[fastmaxx09]

I have a a possible issue. My rear AC blower works great on AC. When I switch it to heat, only the front dash blower works. I haven't had to use the heat yet, so my question is , should the rear blower work when I turn on the heat, or is it just for cooling ? I would assume it should work as it does when I use the ac , but it doesn't blow when I switch it to heat .. The front works fine, just not the rear

 

[Greg841]

Mine works the same as yours. Rear is A/C only. Only one heater core in the truck.

 

[Greg841]

Also from the -10 manual

 

[fastmaxx09]

Mine works the same as yours. Rear is A/C only. Only one heater core in the truck.

Yep , I just figured that out .. I appreciate it. I moved and deleted some wires which had me thinking I left something out.

 

[fastmaxx09]

Also from the -10 manual

That's good info. Thank u