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HVAC Connectors

A/C Compressor Clutch (1.2L)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		KET MG 610041 1-Way F 250 Series
Pin	Wire Color	Circuit No.	Function
1	L-BU/BK	812	A/C Compressor Clutch Supply Voltage

A/C Compressor Clutch (1.4/1.5/1.6L)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		PED 12162017 2-Way F Metri-Pack 150 Series Sealed (GY)
Pin	Wire Color	Circuit No.	Function
1	L-BU	812	A/C Compressor Clutch Supply Voltage
2	BK	250	Ground

A/C Refrigerant Pressure Sensor (1.2L)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		PED 12078090 3-Way F Metri-Pack 150 Series (WH)
Pin	Wire Color	Circuit No.	Function
A	L-BU	733	Low Reference Switch
B	L-BU/WH	432	5-Volt Reference
C	BN/OG	380	A/C Refrigerant Pressure Sensor Signal

A/C Refrigerant Pressure Sensor (1.4/1.6L)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		PED 12078090 3-Way F Metri-Pack 150 Series (BK)
Pin	Wire Color	Circuit No.	Function
A	L-BU	1937	Low Reference Switch
B	WH/RD	1031	5-Volt Reference
C	L-BU	203	A/C Refrigerant Pressure Sensor Signal

A/C Refrigerant Pressure Sensor (1.5L)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		PED 12078090 3-Way F Metri-Pack 150 Series (WH)
Pin	Wire Color	Circuit No.	Function
A	L-BU	1937	Low Reference Switch
B	WH/PK	1031	5-Volt Reference
C	D-GN	203	A/C Refrigerant Pressure Sensor Signal

Blower Motor

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		KET MG 610043 2-Way F 250 Series (WH)
Pin	Wire Color	Circuit No.	Function
1	BK	450	Ground
2	RD/BK	141	Battery Positive Voltage

Blower Relay

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		AK 36409 9-Way Relay F
Pin	Wire Color	Circuit No.	Function
30	RD/BK	141	Battery Positive Voltage
85	BN	361	Defrost Mode Valve Solenoid Control
86	BK	450	Ground
86	BK	450	Ground
87	RD/BK	141	Battery Positive Voltage

Blower Resistor

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		KET MG 610267 4-Way F 250 D/L Series (WH)
Pin	Wire Color	Circuit No.	Function
1	WH	60	Blower Motor Low Control
2	L-BU	52	Blower Motor Medium 1 Control
3	D-BU/WH	63	Medium 2 Blower Motor Control
4	WH	72	Blower Motor High Control

Blower Switch

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		KET MG 610049 6-Way F 250 Series (WH)
Pin	Wire Color	Circuit No.	Function
1	YE	362	HVAC On Signal
2	YE	343	Accessory Voltage
2	YE	343	Accessory Voltage
3	WH	72	Blower Motor Medium 2 Control
4	WH	60	Blower Motor Low Control
5	D-BU/WH	63	Blower Motor Medium 1 Control
6	BN	361	Defrost Mode Valve Solenoid Control

Evaporator Temperature Sensor (1.2L Only)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		KET MG 610392 2-Way F Series Sealed (WH)
Pin	Wire Color	Circuit No.	Function
1	L-BU	732	Evaporator Temperature Sensor Signal
2	BN	733	Reference Low

HVAC Control

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		KET MG 651056 10-Way F 090-II Series (WH)
Pin	Wire Color	Circuit No.	Function
1	YE	343	Accessory Voltage
2	BK	250	Ground
3	BN/WH	309	Right Park Lamp Supply Voltage
4	BN/WH	450	Ground (w/o Dimming)
4	L-GN/RD	230	Instrument Panel Lamps Dimming Control (w/Dimming)
5	YE	362	HVAC On Signal
6	D-GN/WH	762	A/C Request Signal
7	TN	1648	Recirculation Door Control A
8	L-GN/BK	1647	Recirculation Door Control B
9	D-BU	193	Rear Defogger Relay Control
10	OG	540	Battery Positive Voltage (LHD)

Recirculation Actuator

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		KET MG 610203 7-Way F 118 (PA) Series (BK)
Pin	Wire Color	Circuit No.	Function
1-4	-	-	Not Used
5	GY	1648	Recirculation Door Control A
6	-	-	Not Used
7	L-GN/BK	1647	Recirculation Door Control B