Rear heat and air

Tiny
BONGARD1
  • 2004 CADILLAC ESCALADE ESV
  • V8
  • AWD
  • AUTOMATIC
  • 108,000 MILES

My rear heat does not work although the fan controls are working and blowing air. The front system is working fine.

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Monday, January 3rd, 2011 AT 6:54 PM

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Tiny
HMAC300
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  • 47,593 POSTS

You'll have to take this in to getlooked at there is an actuator for the rear hvac unit. Either the control unit in the rear isn't sending a signal to the actuator or the actuator is getting the power and not operating. I can send the wiring diagram if you really want to check this yourself.

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Tuesday, January 4th, 2011 AT 12:06 AM

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