HVAC Control Module Connector End Views

HVAC Control Module - C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12110206 24-Way F Micro-Pack 100 (LT BLU)
Pin	Wire Color	Circuit No.	Function
A1	DK GRN	1614	Recirculation Door Control
A2	DK BLU	1646	Right Air Temperature Door Position Signal
A3	LT BLU	733	Left Air Temperature Door Position Signal
A4	-	-	Not Used
A5	LT GRN	2275	Mode Door Position Signal
A6	-	-	Not Used
A7	BRN/WHT	230	Instrument Panel Lamps Dimming Control
A8	BLK	1851	Ground
A9-A10	-	-	Not Used
A11	DK GRN	71	OFF Blower Motor Control
A12	DK BLU	204	A/C Low Pressure Sensor Signal
B1	WHT/BLK	1236	Right Air Temperature Door Control
B2	DK BLU	1199	Left Air Temperature Door Control
B3	-	-	Not Used
B4	TAN	2273	Mode Door Control
B5	BRN	341	Ignition 3 Voltage
B6	YEL	1791	Low Reference
B7	ORN	4340	Battery Positive Voltage
B8	LT BLU/ BLK	1688	5-Volt Reference
B9	BLK	1050	Ground
B10	-	-	Not Used
B11	WHT	1038	HVAC Class 2 Serial Data
B12	-	-	Not Used

HVAC Control Module - C2

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15326924 8-Way F GT 280 (BLK)
Pin	Wire Color	Circuit No.	Function
A	PPL	73	Medium 3 Blower Motor Control
B	LT BLU	72	Medium 2 Blower Motor Control
C	TAN	63	Blower Motor Medium 1 Control
D	YEL	60	Blower Motor Low Control
E	-	-	Not Used
F	ORN	52	Blower Motor High Control
G	BRN	141	Ignition 3 Voltage
H	DK GRN	71	OFF Blower Motor Control