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HVAC Control Module C2

WARNING: This page is about a different car, the 2007 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: HVAC Control Module C2 Connector End View
GM744295Courtesy of GENERAL MOTORS CORP.
HVAC Control Module C2 Connector Parts Information

Connector Part Information 
  • OEM: 12084944
  • Service: 12084944
  • Description: 16-Way F Micro-Pack 100 Series (BK)
Terminal Part Information 
  • Pins: A1, A3-A5, A7, A8, B1-B5
  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)
HVAC Control Module C2 Connector Terminal Identification

Pin Wire Color Circuit No. Function
A1 WH 193 Rear Defog Relay Control
A2 - - Not Used
A3 L-GN 5962 Inside Air Temperature Sensor Blower Control
A4 D-BU 2181 Passenger Heated Seat Control Module Status Signal
A5 L-BU/WH 181 Driver Heated Seat Control Module Status Signal
A6 - - Not Used
A7 PK 639 Ignition 1 Voltage
A8 RD/WH 1240 Battery Positive Voltage
B1 GY/BK 1458 Instrument Panel Lamp Supply Voltage 4
B2 GY/BK 1357 Instrument Panel Lamp Control
B3 GY/BK 754 Blower Motor Speed Control
B4 GY 5961 Passenger Seat Temperature Control Signal
B5 YE 182 Driver Seat Temperature Control Signal
B6-B8 - - Not Used
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