HVAC Connector End Views. Chevrolet Express

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2007 🢒 Express - AWD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E/4L65-E/4L70-E 🢒 HVAC Connector End Views

Connector 1:	A/C Compressor Clutch (C60)
Connector 2:	A/C High Pressure Switch (C60)
Connector 3:	A/C Low Pressure Switch (C60)
Connector 4:	Air Temperature Actuator
Connector 5:	Air Temperature Actuator - Auxiliary (C69)
Connector 6:	Blower Motor
Connector 7:	Blower Motor - Auxiliary (C36/C69)
Connector 8:	Blower Motor Resistor Assembly
Connector 9:	Blower Motor Resistor Assembly - Auxiliary (C36/C69)
Connector 10:	Blower Motor Switch - Auxiliary (C36 w/o C69)
Connector 11:	Coolant Heater Control - C1 (K08)
Connector 12:	Coolant Heater Control - C2 (K08)
Connector 13:	Coolant Heater - Fuel Pump (K08)
Connector 14:	HVAC Control Assembly - C1
Connector 15:	HVAC Control Assembly - C2
Connector 16:	HVAC Control Assembly - C3 (C49/DE5/DE7)
Connector 17:	HVAC Control Assembly - Front Auxiliary (C69 w/Rear Auxiliary Controls)
Connector 18:	HVAC Control Assembly - Front Auxiliary (C69 w/o Rear Auxiliary Controls)
Connector 19:	HVAC Control Assembly - Rear Auxiliary (C69 w/Rear Auxiliary Controls)
Connector 20:	HVAC Control Processor - Auxiliary (C69 w/Rear Auxiliary Controls)
Connector 21:	High Speed Blower Motor Relay - Auxiliary (C36/C69)
Connector 22:	Low Speed Blower Motor Relay - Auxiliary (C36/C69)
Connector 23:	Med Speed Blower Motor Relay - Auxiliary (C36/C69)
Connector 24:	Mode Actuator - Auxiliary (C69)
Connector 25:	Vacuum Pump (Diesel)

A/C Compressor Clutch (C60)

Connector Part Information

OEM: 12162017
Service: 12101937
Description: 2-Way F Metri-Pack 150 Series Sealed (GY)

Terminal Part Information

Terminal/Tray: 12048074/2
Core/Insulation Crimp: E/1
Release Tool/Test Probe: 12094429/J-35616-2A (GY)

A/C Compressor Clutch (C60)

Pin	Wire Color	Circuit No.	Function
A	BK	1250	Ground
B	D-GN	59	A/C Compressor Clutch Supply Voltage

A/C High Pressure Switch (C60)

Connector Part Information

OEM: 15317968
Service: 15306146
Description: 2-Way F Micro-Pack 100W (BK)

Terminal Part Information

Terminal/Tray: 12084912/5
Core/Insulation Crimp: W/W
Release Tool/Test Probe: 12122523/J-35616-6 (BN)

A/C High Pressure Switch (C60)

Pin	Wire Color	Circuit No.	Function
A	D-GN/WH	2523	A/C Request Signal
B	L-GN	66	A/C Request Signal

A/C Low Pressure Switch (C60)

Connector Part Information

OEM: 12052644
Service: 15306302
Description: 2-Way F Metri-Pack 150 Series Sealed (GY)

Terminal Part Information

Terminal/Tray: 12048074/2
Core/Insulation Crimp: E/1
Release Tool/Test Probe: 12094429/J-35616-2A (GY)

A/C Low Pressure Switch (C60)

Pin	Wire Color	Circuit No.	Function
A	D-GN	603	A/C Low Pressure Switch Signal
B	BK	1250	Ground

Air Temperature Actuator

Connector Part Information

OEM: 12040953
Service: 12102632
Description: 6-Way F Micro-Pack 100 Series (BK)

Terminal Part Information

Terminal/Tray: 12146447/3
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Air Temperature Actuator

Pin	Wire Color	Circuit No.	Function
5-6	--	--	Not Used
7	BK	550	Ground
8	L-BU	733	Air Temperature Door Control
9	--	--	Not Used
10	BN	341	Ignition 3 Voltage

Air Temperature Actuator - Auxiliary (C69)

Connector Part Information

OEM: 12040953
Service: 12102632
Description: 6-Way F Micro-Pack 100 Series (BK)

Terminal Part Information

Terminal/Tray: 12146447/3
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Air Temperature Actuator - Auxiliary (C69)

Pin	Wire Color	Circuit No.	Function
5-6	--	--	Not Used
7	BK	850	Ground
8	OG	2775	Auxiliary Air Temperature Door Control
9	--	--	Not Used
10	BN	341	Ignition 3 Voltage

Blower Motor

Connector Part Information

OEM: 12077900
Service: 12116247
Description: 2-Way F Metri-Pack 280 Series Sealed (BK)

Terminal Part Information

Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit

Blower Motor

Pin	Wire Color	Circuit No.	Function
A	BK	1250	Ground
B	RD	65	Blower Motor Supply Voltage

Blower Motor - Auxiliary (C36/C69)

Connector Part Information

OEM: 12077900
Service: 12116247
Description: 2-Way F Metri-Pack 280 Series Sealed (BK)

Terminal Part Information

Terminal/Tray: 12129493/2
Core/Insulation Crimp: 4/5
Release Tool/Test Probe: 12094430/J-35616-4A (PU)

Blower Motor - Auxiliary (C36/C69)

Pin	Wire Color	Circuit No.	Function
A	BK	850	Ground
B	YE	1172	Auxiliary Blower Motor Supply Voltage

Blower Motor Resistor Assembly

Connector Part Information

OEM: 12160746
Service: 12160746
Description: 6-Way F Metri-Pack 280 Series Flexlock Sealed (L-GY)

Terminal Part Information

Pins: A, C
Terminal/Tray: 12110853/4
Core/Insulation Crimp: B/5
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: B, D-F
Terminal/Tray: 12110847/4
Core/Insulation Crimp: C/5
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Blower Motor Resistor Assembly

Pin	Wire Color	Circuit No.	Function
A	RD/BK	542	Battery Positive Voltage
B	OG	52	Blower Motor High Control
C	BK	1250	Ground
D	TN	63	Blower Motor Medium 1 Control
E	YE	60	Blower Motor Low Control
F	L-BU	72	Medium 2 Blower Motor Control

Blower Motor Resistor Assembly - Auxiliary (C36/C69)

Connector Part Information

OEM: 12129566
Service: 15306069
Description: 4-Way F Metri-Pack 280 Series Sealed (GY)

Terminal Part Information

Terminal/Tray: 12129493/2
Core/Insulation Crimp: 4/5
Release Tool/Test Probe: 12094430/J-35616-4A (PU)

Blower Motor Resistor Assembly - Auxiliary (C36/C69)

Pin	Wire Color	Circuit No.	Function
A	YE	1176	Auxiliary Blower Motor Low Control
B	--	--	Not Used
C	L-BU	1072	Auxiliary Blower Motor Medium Control
D	YE	1172	Auxiliary Blower Motor Supply Voltage

Blower Motor Switch - Auxiliary (C36 w/o C69)

Connector Part Information

OEM: 12064752
Service: 15305888
Description: 6-Way F Metri-Pack 280 Series (BK)

Terminal Part Information

Terminal/Tray: 12034046/2
Core/Insulation Crimp: E/A
Release Tool/Test Probe: 12094430/J-35616-4A (PU)

Blower Motor Switch - Auxiliary (C36 w/o C69)

Pin	Wire Color	Circuit No.	Function
A	BN/WH	230	Instrument Panel Lamps Dimming Control
B	BK	450	Ground
C	--	--	Not Used
D	WH	1924	Auxiliary Blower Motor High Control
E	D-BU	1926	Auxiliary Blower Motor Low Control
F	OG	1925	Auxiliary Blower Motor Medium Control

Coolant Heater Control - C1 (K08)

Connector Part Information

OEM: 967525
Service: Service by Harness - See Part Catalog
Description: 14-Way F Micro Timer 2 (BK)

Terminal Part Information

Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit

Coolant Heater Control - C1 (K08)

Pin	Wire Color	Circuit No.	Function
1	BU	--	Low Reference
2	BN	--	5-Volt Reference
3	BU	--	Low Reference
4	BU	--	5-Volt Reference
5	RD	--	Low Reference
6	RD	--	5-Volt Reference
7-8	--	--	Not Used
9	WH	--	Ground
10-11	--	--	Not Used
12	BN	--	Coolant Heater Glow Plug Supply Voltage
13	BK	--	Ground
14	BN	--	Coolant Heater Blower Supply Voltage

Coolant Heater Control - C2 (K08)

Connector Part Information

OEM: 15326660
Service: 88986262
Description: 10-Way F GT 280 Series Sealed 5.8 (BK)

Terminal Part Information

Pins: A, H
Terminal/Tray: 15304720/19
Core/Insulation Crimp: 4/5
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: B-F
Terminal/Tray: 15304719/19
Core/Insulation Crimp: Pins B-E - E/5
Core/Insulation Crimp: Pins F - 2/5
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Coolant Heater Control - C2 (K08)

Pin	Wire Color	Circuit No.	Function
A	RD/WH	440	Battery Positive Voltage
B	TN	2501	High Speed GMLAN Serial Data Bus (-)
C	TN/BK	2500	High Speed GMLAN Serial Data Bus (+)
D	TN	2501	High Speed GMLAN Serial Data Bus (-)
E	TN/BK	2500	High Speed GMLAN Serial Data Bus (+)
F	D-BU/GN	7077	Coolant Heater - Fuel Pump Control
G	--	--	Not Used
H	BK	150	Ground
J-K	--	--	Not Used

Coolant Heater - Fuel Pump (K08)

Connector Part Information

OEM: 282189-1
Service: Service by Harness - See Part Catalog
Description: 2-Way F (BK)

Terminal Part Information

Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit

Coolant Heater - Fuel Pump (K08)

Pin	Wire Color	Circuit No.	Function
1	BN	150	Ground
2	GN/RD	7077	Coolant Heater - Fuel Pump Control

HVAC Control Assembly - C1

Connector Part Information

OEM: 12129489
Service: 12126486
Description: 3-Way F Metri-Pack 280 Series Flexlock (BK)

Terminal Part Information

Pins: A, B
Terminal/Tray: 12110844/4
Core/Insulation Crimp: Pins A - C/A
Core/Insulation Crimp: Pins B - E/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: C
Terminal/Tray: 12110844/4
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

HVAC Control Assembly - C1

Pin	Wire Color	Circuit No.	Function
A	WH	119	Blower Motor Switch Supply Voltage
B	BK	550	Ground
C	BN/WH	230	Instrument Panel Lamps Dimming Control

HVAC Control Assembly - C2

Connector Part Information

OEM: 12064998
Service: 15306189
Description: 8-Way F Metri-Pack 280 Series (BK)

Terminal Part Information

Terminal/Tray: 12066214/2
Core/Insulation Crimp: Pins A-D, F, G - See Terminal Repair Kit
Core/Insulation Crimp: Pins E, H - F/D
Release Tool/Test Probe: 12094430/J-35616-4A (PU)

HVAC Control Assembly - C2

Pin	Wire Color	Circuit No.	Function
A	YE	60	Blower Motor Low Control
B	TN	63	Blower Motor Medium 1 Control
C	L-BU	72	Medium 2 Blower Motor Control
D	OG	52	Blower Motor High Control
E	BN	141	Ignition 3 Voltage
F	L-BU	733	Air Temperature Door Control
G	WH	119	Blower Motor Switch Supply Voltage
H	L-GN	66	A/C Request Signal

HVAC Control Assembly - C3 (C49/DE5/DE7)

Connector Part Information

OEM: 12052856
Service: 12125636
Description: 4-Way F Metri-Pack 280 Series (BK)

Terminal Part Information

Pins: A, D
Terminal/Tray: 12066214/2
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: 12094430/J-35616-4A (PU)

Pins: B, C
Terminal/Tray: 12034046/2
Core/Insulation Crimp: E/A
Release Tool/Test Probe: 12094430/J-35616-4A (PU)

HVAC Control Assembly - C3 (C49/DE5/DE7)

Pin	Wire Color	Circuit No.	Function
A	RD/WH	4440	Battery Positive Voltage
B	BN	341	Ignition 3 Voltage
C	BK	550	Ground
D	WH	193	Rear Defog Relay Supply Voltage

HVAC Control Assembly - Front Auxiliary (C69 w/Rear Auxiliary Controls)

Connector Part Information

OEM: 12064769
Service: 12101762
Description: 10-Way F Metri-Pack 150 Series (NA)

Terminal Part Information

Terminal/Tray: 12064971/5
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 12094429/J-35616-2A (GY)

HVAC Control Assembly - Front Auxiliary (C69 w/Rear Auxiliary Controls)

Pin	Wire Color	Circuit No.	Function
A	BN/WH	230	Instrument Panel Lamps Dimming Control
B	BK	450	Ground
C	D-BU	1926	Auxiliary Blower Motor Low Control
D	WH	1924	Auxiliary Blower Motor High Control
E	OG	1925	Auxiliary Blower Motor Medium Control
F	YE	5262	Front Auxiliary Blower Motor Switch Control
G	BN	341	Ignition 3 Voltage
H	PU	5260	Front Auxiliary Air Temperature Door Control
J	TN	5261	Front Auxiliary Mode Door Control
K	--	--	Not Used

HVAC Control Assembly - Front Auxiliary (C69 w/o Rear Auxiliary Controls)

Connector Part Information

OEM: 12064871
Service: 12101832
Description: 10-Way F Metri-Pack 150 Series (BU)

Terminal Part Information

Pins: A-E, G
Terminal/Tray: 12064971/5
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Pins: F, H, J
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit

HVAC Control Assembly - Front Auxiliary (C69 w/o Rear Auxiliary Controls)

Pin	Wire Color	Circuit No.	Function
A	BN/WH	230	Instrument Panel Lamps Dimming Control
B	BK	450	Ground
C	D-BU	1926	Auxiliary Blower Motor Low Control
D	WH	1924	Auxiliary Blower Motor High Control
E	OG	1925	Auxiliary Blower Motor Medium Control
F	BK	450	Ground
G	BN	341	Ignition 3 Voltage
H	OG	2775	Auxiliary Air Temperature Door Control
J	GY	2599	Auxiliary Mode Door Control
K	--	--	Not Used

HVAC Control Assembly - Rear Auxiliary (C69 w/Rear Auxiliary Controls)

Connector Part Information

OEM: 12064871
Service: 12101832
Description: 10-Way F Metri-Pack 150 Series (BU)

Terminal Part Information

Terminal/Tray: 12064971/5
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 12094429/J-35616-2A (GY)

HVAC Control Assembly - Rear Auxiliary (C69 w/Rear Auxiliary Controls)

Pin	Wire Color	Circuit No.	Function
A	BN/WH	230	Instrument Panel Lamps Dimming Control
B	BK	450	Ground
C	D-BU	1926	Auxiliary Blower Motor Low Control
D	WH	1924	Auxiliary Blower Motor High Control
E	OG	1925	Auxiliary Blower Motor Medium Control
F	PK/BK	5265	Rear Auxiliary Blower Motor Switch Control
G	BN	341	Ignition 3 Voltage
H	BN	5263	Rear Auxiliary Air Temperature Door Control
J	PU/WH	5264	Rear Auxiliary Mode Door Control
K	--	--	Not Used

HVAC Control Processor - Auxiliary (C69 w/Rear Auxiliary Controls)

Connector Part Information

OEM: 12040747
Service: 12101938
Description: 12-Way P/C Edgeboard Standard (BK)

Terminal Part Information

Terminal/Tray: 12040511/3
Core/Insulation Crimp: E/A
Release Tool/Test Probe: 12094429/J-35616-4A (PU)

HVAC Control Processor - Auxiliary (C69 w/Rear Auxiliary Controls)

Pin	Wire Color	Circuit No.	Function
A	PU	5260	Front Auxiliary Air Temperature Door Control
B	OG	2775	Auxiliary Air Temperature Door Control
C	BN	5263	Rear Auxiliary Air Temperature Door Control
D	PU/WH	5264	Rear Auxiliary Mode Door Control
E	TN	5261	Front Auxiliary Mode Door Control
F	GY	2599	Auxiliary Mode Door Control
G	--	--	Not Used
H	BK	450	Ground
J	BN	341	Ignition 3 Voltage
K	--	--	Not Used
L	PK/BK	5265	Rear Auxiliary Blower Motor Switch Control
M	YE	5262	Front Auxiliary Blower Motor Switch Control

High Speed Blower Motor Relay - Auxiliary (C36/C69)

Connector Part Information

OEM: 12129715
Service: 12129715
Description: 6-Way F Metri-Pack 280 Series Flexlock (GY)

Terminal Part Information

Pins: A1, C2
Terminal/Tray: 12110844/4
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: A2, C1
Terminal/Tray: 12191475/1
Core/Insulation Crimp: A/G
Release Tool/Test Probe: 12094429/J-35616-4A (PU)

High Speed Blower Motor Relay - Auxiliary (C36/C69)

Pin	Wire Color	Circuit No.	Function
A1	WH	1924	Auxiliary Blower Motor High Control
A2	YE	1172	Auxiliary Blower Motor Supply Voltage
B1-B2	--	--	Not Used
C1	RD/WH	1740	Battery Positive Voltage
C2	BN	341	Ignition 3 Voltage

Low Speed Blower Motor Relay - Auxiliary (C36/C69)

Connector Part Information

OEM: 12129715
Service: 12129715
Description: 6-Way F Metri-Pack 280 Series Flexlock (GY)

Terminal Part Information

Pins: A1, C2
Terminal/Tray: 12110844/4
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: A2, C1
Terminal/Tray: 12191475/1
Core/Insulation Crimp: A/G
Release Tool/Test Probe: 12094429/J-35616-4A (PU)

Low Speed Blower Motor Relay - Auxiliary (C36/C69)

Pin	Wire Color	Circuit No.	Function
A1	D-BU	1926	Auxiliary Blower Motor Low Control
A2	YE	1176	Auxiliary Blower Motor Low Control
B1-B2	--	--	Not Used
C1	RD/WH	1740	Battery Positive Voltage
C2	BN	341	Ignition 3 Voltage

Med Speed Blower Motor Relay - Auxiliary (C36/C69)

Connector Part Information

OEM: 12129715
Service: 12129715
Description: 6-Way F Metri-Pack 280 Series Flexlock (GY)

Terminal Part Information

Pins: A1, C2
Terminal/Tray: 12110844/4
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: A2, C1
Terminal/Tray: 12191475/1
Core/Insulation Crimp: A/G
Release Tool/Test Probe: 12094429/J-35616-4A (PU)

Med Speed Blower Motor Relay - Auxiliary (C36/C69)

Pin	Wire Color	Circuit No.	Function
A1	OG	1925	Auxiliary Blower Motor Medium Control
A2	L-BU	1072	Auxiliary Blower Motor Medium Control
B1-B2	--	--	Not Used
C1	RD/WH	1740	Battery Positive Voltage
C2	BN	341	Ignition 3 Voltage

Mode Actuator - Auxiliary (C69)

Connector Part Information

OEM: 12040953
Service: 12102632
Description: 6-Way F Micro-Pack 100 Series (BK)

Terminal Part Information

Terminal/Tray: 12146447/3
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Mode Actuator - Auxiliary (C69)

Pin	Wire Color	Circuit No.	Function
5-6	--	--	Not Used
7	BK	850	Ground
8	GY	2599	Auxiliary Mode Door Control
9	--	--	Not Used
10	BN	341	Ignition 3 Voltage

Vacuum Pump (Diesel)

Connector Part Information

OEM: 15326802
Service: 15306156
Description: 2-Way F GT 150 Series Sealed (BK)

Terminal Part Information

Terminal/Tray: 12191819/8
Core/Insulation Crimp: 2/A
Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Vacuum Pump (Diesel)

Pin	Wire Color	Circuit No.	Function
A	BK	1250	Ground
B	BN	141	Ignition 3 Voltage