HVAC Connector End Views. GMC Truck TopKick C-Series (Conventional) C6/C7/C8 2006

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2006 🢒 TopKick C-Series (Conventional) C6/C7/C8 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 HVAC Connector End Views

Connector 1:	A/C Compressor Clutch (C4/C5 w/C60)
Connector 2:	A/C Compressor Clutch (C6/C7/C8 w/C60)
Connector 3:	A/C Compressor Clutch Relay (C60)
Connector 4:	A/C High Pressure Switch (C60)
Connector 5:	A/C Low Pressure Switch (C60)
Connector 6:	Air Temperature Actuator
Connector 7:	Blower Motor - Auxiliary C1 (C36)
Connector 8:	Blower Motor - Auxiliary C2 (C36)
Connector 9:	Blower Motor (C40/C60)
Connector 10:	Blower Motor Relay - Auxiliary (C36)
Connector 11:	Blower Motor Resistor - Auxiliary (C36)
Connector 12:	Blower Motor Resistor Assembly (C40/C60)
Connector 13:	Coolant Bypass Valve Solenoid (C36)
Connector 14:	HVAC Control Assembly C1 (C40/C60)
Connector 15:	HVAC Control Assembly C2 (C40/C60)
Connector 16:	HVAC Control Assembly C3 (C49)
Connector 17:	HVAC Control Assembly - Auxiliary (C36)
Connector 18:	Vacuum Pump (w/o L18)

A/C Compressor Clutch (C4/C5 w/C60)

Connector Part Information

OEM: 12124823
Service: See Catalog
Description: 2-Way F Metri-Pack 150 Series, Sealed (GY)

Terminal Part Information

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

A/C Compressor Clutch (C4/C5 w/C60)

Pin	Wire Color	Circuit No.	Function
A	BK	250	Ground
B	D-GN	59	A/C Compressor Clutch Supply Voltage

A/C Compressor Clutch (C6/C7/C8 w/C60)

Connector Part Information

OEM: 12052637
Service: 12101858
Description: 2-Way F Metri-Pack 150 Series, Sealed (RD)

Terminal Part Information

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

A/C Compressor Clutch (C6/C7/C8 w/C60)

Pin	Wire Color	Circuit No.	Function
A	BK	250	Ground
B	D-GN	59	A/C Compressor Clutch Supply Voltage

A/C Compressor Clutch Relay (C60)

Connector Part Information

OEM: 12110780
Service: See Catalog
Description: 4-Way F Metri-Pack 280 Series, Flexlock, Sealed (GY)

Terminal Part Information

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

A/C Compressor Clutch Relay (C60)

Pin	Wire Color	Circuit No.	Function
30	OG	1240	Battery Positive Voltage
85	D-GN	603	A/C Low Pressure Switch Signal (LG4/LG5)
85	D-GN/WH	459	A/C Compressor Clutch Relay Control (L18/LLY)
86	D-GN/WH	459	A/C Compressor Clutch Relay Control (LG4/LG5)
86	BN	441	Ignition 3 Voltage (L18/LLY)
87	D-GN	59	A/C Compressor Clutch Supply Voltage

A/C High Pressure Switch (C60)

Connector Part Information

OEM: 12162434
Service: See Catalog
Description: 2-Way F Metri-Pack 150 Series, Pull To Seat, 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

A/C High Pressure Switch (C60)

Pin	Wire Color	Circuit No.	Function
A	D-GN/WH	762	A/C Request Signal (L18/LLY)
A	L-GN	66	A/C Request Signal (LG4/LG5)
B	L-GN	66	A/C Request Signal (L18/LLY)
B	D-GN/WH	459	A/C Compressor Clutch Relay Control (LG4/LG5)

A/C Low Pressure Switch (C60)

Connector Part Information

OEM: 12052638
Service: 12116958
Description: 2-Way F Metri-Pack 150 Series, Sealed (L-GY)

Terminal Part Information

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

A/C Low Pressure Switch (C60)

Pin	Wire Color	Circuit No.	Function
A	BK	250	Ground (L18/LLY)
A	D-GN	603	A/C Low Pressure Switch Signal (LG4/LG5)
B	D-GN	603	A/C Low Pressure Switch Signal (L18/LLY)
B	BK	250	Ground (LG4/LG5)

Air Temperature Actuator

Connector Part Information

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

Terminal Part Information

Terminal/Tray: 12146448/19
Core/Insulation Crimp: Pins 7-8 - E/C
Core/Insulation Crimp: Pins 10 - E/A
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	450	Ground
8	L-BU	733	Left Air Temperature Door Control
9	--	--	Not Used
10	BN	141	Ignition 3 Voltage

Blower Motor - Auxiliary C1 (C36)

Connector Part Information

OEM: 12040673
Service: 12117342
Description: 1-Way F Metri-Pack 800 Series, Inset Molded (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 - Auxiliary C1 (C36)

Pin	Wire Color	Circuit No.	Function
A	YE	1172	Auxiliary Blower Motor Supply Voltage

Blower Motor - Auxiliary C2 (C36)

Connector Part Information

OEM: 12004267
Service: 08911256
Description: 1-Way F 56 Series Lock Type (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 - Auxiliary C2 (C36)

Pin	Wire Color	Circuit No.	Function
A	BK	550	Ground

Blower Motor (C40/C60)

Connector Part Information

OEM: 12084957
Service: 12126461
Description: 2-Way F Metri-Pack 280 Series (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 (C40/C60)

Pin	Wire Color	Circuit No.	Function
A	PU	65	Blower Motor Supply Voltage
B	BK	450	Ground

Blower Motor Relay - Auxiliary (C36)

Connector Part Information

OEM: 12110780
Service: See Catalog
Description: 4-Way F Metri-Pack 280 Series, Flexlock, Sealed (GY)

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 Relay - Auxiliary (C36)

Pin	Wire Color	Circuit No.	Function
30	OG	540	Battery Positive Voltage
85	BK	550	Ground
86	BN	141	Ignition 3 Voltage
87	OG	1923	Auxiliary HVAC Switch Supply Voltage

Blower Motor Resistor - Auxiliary (C36)

Connector Part Information

OEM: 12077384
Service: 12126047
Description: 3-Way F 56 Series (BK)

Terminal Part Information

Terminal/Tray: 12124515/1
Core/Insulation Crimp: Pins A-C - C/D
Core/Insulation Crimp: Pins B - A/D
Release Tool/Test Probe: 12094430/J-35616-42 (RD)

Blower Motor Resistor - Auxiliary (C36)

Pin	Wire Color	Circuit No.	Function
A	RD	1925	Auxiliary Blower Motor Medium Speed Control
B	YE	1172	Auxiliary Blower Motor Supply Voltage
B	WH	1924	Auxiliary Blower Motor High Control
C	D-BU	1926	Auxiliary Blower Motor Low Speed Control

Blower Motor Resistor Assembly (C40/C60)

Connector Part Information

OEM: 12160485
Service: See Catalog
Description: 6-Way F Metri-Pack 280 Series, Flexlock, Sealed (L-GY)

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 Resistor Assembly (C40/C60)

Pin	Wire Color	Circuit No.	Function
A	RD	542	Battery Positive Voltage
B	OG	52	Blower Motor High Control
C	BK	450	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

Coolant Bypass Valve Solenoid (C36)

Connector Part Information

OEM: 12052635
Service: See Catalog
Description: 2-Way F Metri-Pack 150 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

Coolant Bypass Valve Solenoid (C36)

Pin	Wire Color	Circuit No.	Function
A	GY/BK	1596	Coolant Bypass Solenoid Control
B	BK	550	Ground

HVAC Control Assembly C1 (C40/C60)

Connector Part Information

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

Terminal Part Information

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

HVAC Control Assembly C1 (C40/C60)

Pin	Wire Color	Circuit No.	Function
A	WH	119	Mode Door Control
B	BK	450	Ground
C	GY	8	Instrument Panel Lamps Dimmer Switch Signal

HVAC Control Assembly C2 (C40/C60)

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

HVAC Control Assembly C2 (C40/C60)

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	Left Air Temperature Door Control
G	WH	119	Mode Door Control
H	L-GN	66	A/C Request Signal

HVAC Control Assembly C3 (C49)

Connector Part Information

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

Terminal Part Information

Pins: A, D
Terminal/Tray: 12015858/4
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: 12094430/J-35616-4A (PU)

Pins: B-C
Terminal/Tray: 12066214/2
Core/Insulation Crimp: F/D
Release Tool/Test Probe: 12094430/J-35616-4A (PU)

HVAC Control Assembly C3 (C49)

Pin	Wire Color	Circuit No.	Function
A	PU	1093	Rear Defog Element Supply Voltage
B	BN	141	Ignition 3 Voltage
C	BK	450	Ground
D	PU	293	Rear Defog Element Supply

HVAC Control Assembly - Auxiliary (C36)

Connector Part Information

OEM: 12162066
Service: 15306189
Description: 8-Way F Metri-Pack 280 Series (GY)

Terminal Part Information

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

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

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

HVAC Control Assembly - Auxiliary (C36)

Pin	Wire Color	Circuit No.	Function
A	WH	1924	Auxiliary Blower Motor High Speed Control
B	RD	1925	Auxiliary Blower Motor Medium Speed Control
C	GY/BK	1596	Coolant Bypass Solenoid Control
D	--	--	Not Used
E	BK	550	Ground
F	D-BU	1926	Auxiliary Blower Motor Low Speed Control
G	OG	1923	Auxiliary HVAC Switch Supply Voltage
H	GY	8	Instrument Panel Lamps Dimmer Switch Signal

Vacuum Pump (w/o L18)

Connector Part Information

OEM: 12052635
Service: See Catalog
Description: 2-Way F Metri-Pack 150 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

Vacuum Pump (w/o L18)

Pin	Wire Color	Circuit No.	Function
A	BK	350	Ground
B	BN	141	Ignition 3 Voltage