HVAC Control Module

WARNING: This page is about a different car, the 2007 Buick LaCrosse and 2007 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: HVAC Control Module Connector End View

Courtesy of GENERAL MOTORS CORP.

HVAC Control Module Connector Part Information

Connector Part Information

OEM: 12110206
Service: 12110206
Description: 24-Way F Micro-Pack 100 Series (L-BU)

Terminal Part Information

Pins: A2, A3, A5, A9-A12, B2, B5, B6, B9- B11
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit

HVAC Control Module Connector Terminal Identification

Pin	Wire Color	Circuit No.	Function
A1	-	-	Not Used
A2	OG	1040	Battery Positive Voltage
A3	PK	739	Ignition 1 Voltage
A4	-	-	Not Used
A5	BK/WH	1551	Ground
A6-A8	-	-	Not Used
A9	D-BU	1646	Air Temperature Door Control B
A10	D-BU	1646	Air Temperature Door Control A
A11	L-GN/BK	1647	Recirculation Door Control B
A12	PK/WH	1648	Recirculation Door Control A
B1	-	-	Not Used
B2	WH	1038	HVAC Class 2 Serial Data
B3-B4	-	-	Not Used
B5	GY	8	Instrument Panel Lamp Supply Voltage
B6	BK	1450	Ground
B7-B8	-	-	Not Used
B9	GY/BK	754	Blower Motor Speed Control
B10	TN	2273	Mode Door Control B
B11	L-GN	2275	Mode Door Control A
B12	-	-	Not Used