Auxiliary Heater and Air Conditioning Control Module Scan Tool Information

WARNING: This page is about a different car, the 2013 GMC Acadia, 2013 Chevrolet Traverse, and 2013 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	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.