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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC - Automatic >> Description and Operation >> Air Delivery Description and Operation >> HVAC Control Components >> HVAC Control Module >> Auxiliary HVAC Control Module

Auxiliary HVAC Control Module

Auxiliary HVAC Control functions are integrated into the Rear Seat Entertainment Module. The Rear Seat Entertainment Module communicates Rear HVAC settings over serial data. The control switches enable the module to send a GMLAN serial data message to the from auxiliary HVAC control module to the HVAC Control Module for the change request. The Auxiliary HVAC Control module does not store auxiliary HVAC DTCs.

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