Auxiliary Heater and Air Conditioning Control Module Scan Tool Information

WARNING: This page is about a different car, the 2011 GMC Acadia, 2011 Chevrolet Traverse, and 2011 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.

Rear HVAC/RSA Scan Tool Data Parameters

Parameter	System State	Expected Value	Definition
Operating Conditions: Ignition ON
Battery Voltage	-	Varies	This displays volts. This is the voltage input supplied to the rear HVAC.
Display Dimming Signal	-	Varies	This displays volts. This is the current voltage supplied to the rear HVAC display dimming.
Left Rear Heated Seat Switch	-	Inactive	The scan tool displays Active or Inactive. This is the state of the left rear heated seat switch.
Power Button	-	Inactive	The scan tool displays Active or Inactive. This is the state of the rear seat audio system.
Program Switch	-	Inactive	The scan tool displays Active or Inactive. This is the state of the rear seat audio program switch.
Rear Audio Seek Down Switch	-	Inactive	The scan tool displays Active or Inactive. This is the state of the rear audio seek down switch.
Rear Audio Seek Up Switch	-	Inactive	The scan tool displays Active or Inactive. This is the state of the rear audio seek up switch.
Rear HVAC Fan Down Sw.	-	Inactive	The scan tool displays Active or Inactive. This is the state of the rear HVAC fan down switch.
Rear HVAC Fan Down Sw.	-	Inactive	The scan tool displays Active or Inactive. This is the state of the rear HVAC fan up switch.
Rear Temperature Down Switch	-	Inactive	The scan tool displays Active or Inactive. This is the state of the rear temperature down switch.
Rear Temperature Up Switch	-	Inactive	The scan tool displays Active or Inactive. This is the state of the rear temperature up switch.
Right Rear Heated Seat Switch	-	Inactive	The scan tool displays Active or Inactive. This is the state of the right rear heated seat switch.
Source	-	Inactive	The scan tool displays Active or Inactive. This is the state of the rear audio source switch.

Rear HVAC/RSA Scan Tool Output Controls

Scan Tool Output Control	Description
Display(s) Test	The rear HVAC/RSA module will illuminate all indicators and display segments on the module display.
Infrared Transmitter Power Control	The rear HVAC/RSA module will activate the infrared transmitter, which sends wireless signals to the RSA headphones.