HVAC Connector End Views

WARNING: This page is about a different car, the 1999 GMC Sierra and 1999 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

A/C Compressor Low Pressure Cycling Switch (ALL)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12052644 2 Way F Metri-Pack 150 Series (LT GRY)
Pin	Wire Color	Circuit No.	Function
A	DK GRN	603	A/C Compressor Low Pressure Cycling Switch Output
B	BLK	550	Ground

C-1 HVAC Control Module

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12064799 12 Way F Micro-Pack 100 (BLK)
Pin	Wire Color	Circuit No.	Function
A	DK GRN	71	Blower Switch Output - Off
B	WHT	119	Mode Switch Output
C	BLK	2450	Ground
D	DK GRN	1614	Recirculation Door Motor Feed
E	GRY	8	Instrument Panel Lamp Feed
F	DK BLU	1199	Temperature Door Motor Feed
G	LT BLU	733	Temperature Door Position Sensor - Signal
H	GRY	598	Reference Voltage Feed - 5 Volt
J	WHT	193	Rear Defogger Relay Output - Coil
K	BRN	341	Fused Ignition Feed
L	LT BLU	203	A/C Compressor High Pressure Cutout Switch
M	RED	708	Mode Door Position Sensor - Signal

C-2 HVAC Blower Switch (Part of HVAC Control Module)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12064998 8 Way F Metri-Pack 280 Series (BLK)
Pin	Wire Color	Circuit No.	Function
A	DK GRN	71	Blower Switch Output - Off
B	BRN	141	Fused Ignition Feed
C	ORN	52	Blower Switch Output - (High)
D	-	-	Not Used
E	PPL	73	Blower Switch Output - (Med 3)
F	LT BLU	72	Blower Switch Output - (Med 2)
G	TAN	63	Blower Switch Output - (Med 1)
H	YEL	60	Blower Switch Output - (Low)

Blower Motor Resistor Relay 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	Blower Switch Output - (Medium 1)
B	YEL	60	Blower Switch Output - (Low)
C	PPL	73	Blower Switch Output - (Medium 3)
D	LT BLU	72	Blower Switch Output - (Medium 2)
E	BLK	1050	Ground
F	ORN	52	Blower Switch Output - (High)
G	ORN	540	Fused Battery Feed

Blower Motor

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12084957 2 Way F Metri-Pack 280 Series (BLK)
Pin	Wire Color	Circuit No.	Function
A	PPL	65	Blower Motor Feed
B	BLK	1050	Ground

Mode Door Motor (HVAC)

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	Fused Ignition 3 Feed
6	WHT	119	Mode Switch Output
7	BLK	2450	Ground
8	-	-	Not Used
9	RED	708	Mode Door Position Sensor Signal (Upper)
10	GRY	598	Reference Voltage Feed (5 Volt)

Recirculation Door Motor (HVAC)

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	Fused Ignition 3 Feed
6	DK GRN	1614	Recirculation Door Motor (HVAC) Feed
7	BLK	2450	Ground
8-10	-	-	Not Used

Temperature Door Motor (HVAC)

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	Fused Ignition 3 Feed
6	DK BLU	1199	Temperature Door Motor (HVAC) Feed
7	BLK	2450	Ground
8	-	-	Not Used
9	LT BLU	733	Temperature Door Position Sensor Signal
10	GRY	598	Reference Voltage Feed (5 Volt)

A/C Automatic Recirculating Switch

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12124037 2 Way F Metri-Pack 150 (BLK)
Pin	Wire Color	Circuit No.	Function
A	DK BLU	604	A/C Automatic Recirculating Switch Output
B	BLK	150	Ground

A/C Compressor

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 Solenoid Feed

A/C Compressor High Pressure Cutout Switch

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15317968 2 Way F Micro-Pack 100 W Series (BLK)
Pin	Wire Color	Circuit No.	Function
A	LT BLU	203	Air Conditioning Refrigerant High Pressure Cutout Switch
B	DK GRN/WHT	762	Air Conditioning Request Signal