HVAC Connector End Views

A/C Fresh/Recirculation Switch

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		90980-12162 BLK
Pin	Wire Color	Function
1	WH/BK	Ground
2	GN/WH	Fresh Position Actuator Control
3	-	Not Used
4	RD/WH	AC Switch Feed Circuit
5	BU/WH	Recirculation Position Actuator Control
6	GN	Illumination Lamps Supply Voltage
7	WH/BK	Illumination Lamps Ground
8	GN/WH	A/C Indicator Control
9	YE	AC Request Signal Circuit
10	BK	AC Request Feed Circuit

Defogger Mode Switch

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		90980-10906 BLK
Pin	Wire Color	Function
1	YE	AC Request Signal Circuit
2	BK	AC Request Feed Circuit

Fresh/Recirculation Air Inlet Actuator

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		DDM70-01399 BLK
Pin	Wire Color	Function
1	GN/WH	Fresh Position Control
2	BU/WH	Recirculation Position Control

Blower Motor

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		90080-11512 BLK
Pin	Wire Color	Function
A	BK	Blower Motor Feed Circuit
B	BK/WH	Blower Motor Resistor Control Circuit

Blower Motor Resistor

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		90080-98149 GRY
Pin	Wire Color	Function
A	RD	Ground
B	LT BU	Medium 1
C	BK/WH	Medium 2
D	WH/BK	High

Blower Switch

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		90080-10877 BLK
Pin	Wire Color	Function
1	BU/WH	Blower Control Medium 2
2	RD	Blower Control Medium 1
3	WH/BK	Illumination Ground
4	BK/WH	Blower Control High
5	WH/BK	Ground
6	BU/WH	Heater Relay Control Circuit
7	-	Not Used
8	GN	Illumination Supply Voltage

Evaporator Temperature Sensor

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		90980-10928 GRY
Pin	Wire Color	Function
1	BK/BU	Sensor High
2	BN	Sensor Low

Fan Motor

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		90980-10928 GRY
Pin	Wire Color	Function
1	WH/RD	Fan Motor Control Circuit
2	BK/RD	Fan Motor Feed Circuit

Fan Resistor

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		90980-10928 GRY
Pin	Wire Color	Function
1	WH/BK	Ground
2	BU/WH	Low Speed Fan Control Circuit

Refrigerant Pressure Switch

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		90980-10943 GRY
Pin	Wire Color	Function
1	YE	Pressure Signal to PCM
2	WH/BK	Ground
3	LT GN/BK	High Speed Fan Control
4	WH/BK	Ground