HVAC Control Module C1

WARNING: This page is about a different car, the 2007 Pontiac Montana SV6, 2007 Chevrolet Uplander, and 2007 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: HVAC Control Module C1 Connector End View

Courtesy of GENERAL MOTORS CORP.

Connector Part Information

OEM: 12064799
Service: 15305996
Description: 12-Way F Micro-Pack 100 Series (BK)

Terminal Part Information

Pins: A, C, E, F, H-M
Terminal: 12146447/Tray 3
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 12031876-1/J-35616-6

Pins: D, G
Terminal: 12146448/Tray 19
Core/Insulation Crimp: Pin D: E/C, Pin G: E/A
Release Tool/Test Probe: 12031876-1/J-35616-6

Connector Terminal Identification

Pin	Wire Color	Circuit No.	Function
A	BK/WH	1551	Ground
B-C	-	-	Not Used
D	RD/WH	1040	Battery Positive Voltage
E	PK	739	Ignition 1 Voltage
F	-	-	Not Used
G	WH	2613	Auxiliary Blower Motor Speed Control
H	WH	1038	Class 2 Serial Data
J	BK	1450	Ground
K	GY	8	Instrument Panel Lamp Supply Voltage
L	WH	2622	Evaporator Temperature Sensor Signal
M	TN	552	Low Reference