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HVAC Control Module Connector End View, C1

Fig 1: HVAC Control Module C1 Connector End View
GM744296Courtesy of GENERAL MOTORS CORP.
HVAC Control Module C1 Connector Part Information

Connector Part Information 
  • OEM: 12110259
  • Service: 12110259
  • Description: 16-Way F Micro-Pack 100 Series (GN)
Terminal Part Information 
  • Pins: A1-A3, A5-A8, B1, B3-B8
  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)
HVAC Control Module C1 Connector Terminal Identification

Pin Wire Color Circuit No. Function
A1 OG 1040 Battery Positive Voltage
A2 PK 739 Ignition 1 Voltage
A3 WH 1038 HVAC Class 2 Serial Data
A4 - - Not Used
A5 GY 8 Instrument Panel Lamp Supply Voltage
A6 BK 150 Ground
A7 D-GN 734 Inside Air Temperature Sensor Signal
A8 GY 720 Low Reference
B1 BK 516 Upper Left Air Temperature Sensor Signal
B2 - - Not Used
B3 TN 517 Upper Right Air Temperature Sensor Signal
B4 PU 719 Low Reference
B5 L-BU/BK 590 Driver Sunload Sensor Signal
B6 GY 1548 Passenger Sunload Sensor Signal
B7 BN 718 Low Reference
B8 BK 1551 Ground
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