HVAC Connectors

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

A/C Compressor Clutch

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12162017 2-Way F Metri-Pack 150 Series (MD GRY)
Pin	Wire Color	Circuit No.	Function
A	BLK	550	Ground
B	DK GRN	59	A/C Compressor Clutch Supply Voltage

A/C Low Pressure Switch

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12052644 2-Way F Metri-Pack 150 Series ( GRY)
Pin	Wire Color	Circuit No.	Function
A	DK BLU	204	A/C Low Pressure Sensor Signal
B	BLK	550	Ground

A/C Refrigerant Pressure Sensor

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15344137 3-Way F GT 150 Sealed (BLK)
Pin	Wire Color	Circuit No.	Function
1	BLK	2751	Low Reference
2	GRY	2700	5-Volt Reference
3	RED/BLK	380	A/C Refrigerant Pressure Sensor Signal

Air Temperature Actuator - Left

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12064993 6-Way F Micro-Pack 100 Series (BLK)
Pin	Wire Color	Circuit No.	Function
5	BRN	341	Ignition 3 Voltage
6	DK BLU	1199	Left Air Temperature Door Control
7	YEL	1791	Low Reference
8	-	-	Not Used
9	LT BLU	733	Air Temperature Door Position Signal
10	LT BLU/ BLK	1688	5-Volt Reference

Air Temperature Actuator - Right

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12064993 6-Way F Micro-Pack 100 Series (BLK)
Pin	Wire Color	Circuit No.	Function
5	BRN	341	Ignition 3 Voltage
6	WHT/BLK	1236	Right Air Temperature Door Control
7	YEL	1791	Low Reference
8	-	-	Not Used
9	DK BLU	1646	Right Air Temperature Door Position Signal
10	LT BLU/ BLK	1688	5-Volt Reference

Ambient Light Sensor

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12047662 2-Way F Metri Pack 150 Series (BLK)
Pin	Wire Color	Circuit Number	Function
A	WHT	278	Ambient Light Sensor Signal
B	BLK	279	Ambient Light Sensor Low Reference

Blower Motor

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12077900 2-Way F Metri Pack 280 Series (BLK)
Pin	Wire Color	Circuit Number	Function
A	PPL	65	Blower Motor Supply Voltage
B	BLK	1050	Ground

Blower Motor Resistor Assembly

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12052854 7-Way F Metri-Pack 280 Series (BLK)
Pin	Wire Color	Circuit No.	Function
A	TAN	63	Medium 1 Blower Motor Control
B	YEL	60	Blower Motor Low Control
C	PPL	73	Medium 3 Blower Motor Control
D	LT BLU	72	Medium 2 Blower Motor Control
E	BLK	1050	Ground
F	ORN	52	Blower Motor High Control
G	RED	542	Battery Positive Voltage

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/WHT	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 Number	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

Mode Actuator

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12064993 6-Way F Micro-Pack 100 Series (BLK)
Pin	Wire Color	Circuit No.	Function
5	BRN	341	Ignition 3 Voltage
6	TAN	2273	Mode Door Control
7	YEL	1791	Low Reference
8	-	-	Not Used
9	LT GRN	2275	Mode Door Position Signal
10	LT BLU/ BLK	1688	5-Volt Reference

Recirculation Actuator

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12064993 6-Way F Micro-Pack 100 Series (BLK)
Pin	Wire Color	Circuit No.	Function
5	BRN	341	Ignition 3 Voltage
6	DK GRN	1614	Recirculation Door Control
7	BLK	1050	Ground
8-10	-	-	Not Used