Auxiliary Heater and Air Conditioning Control Module Scan Tool Information. Cadillac DTS 2009

GM Service Manual Online

For 1990-2009 cars only

Makes 🢒 Cadillac 🢒 2009 🢒 DTS 🢒 Power and Signal Distribution 🢒 Data Communications 🢒 Auxiliary Heater and Air Conditioning Control Module Scan Tool Information

Table 1:	HVAC Control Module Scan Tool Data Parameters
Table 2:	Auxiliary HVAC Control Module Scan Tool Output Controls

HVAC Control Module Scan Tool Data Parameters

Parameter	System State	Expected Value	Description
Operating Conditions: Ignition ON, HVAC OFF
Aux. Blower Motor PWM	--	%	This displays %. This is the commanded blower motor speed measured in percentage.

Auxiliary HVAC Control Module Scan Tool Output Controls

Output Control	Description
Auxiliary Blower Motor	The scan tool displays Off or On selections. This function allows you to command the blower motor to its maximum (100%) or minimum (0%) speeds for 5 seconds.
Segment Check	The scan tool displays Commanded State: On or Off. This function allows you to illuminate all segments on the auxiliary HVAC control modules display.