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HVAC Control Module X1 (CJ2)

Fig 1: HVAC Control Module X1 (CJ2) Connector End View
GM744296Courtesy of GENERAL MOTORS CORP.
HVAC Control Module X1 (CJ2)

Pin Wire Color Circuit No. Function
A1 0.35 OG 1040 Battery Positive Voltage
A2 0.35 PK 739 Ignition 1 Voltage
A3 0.35 WH 1038 HVAC Class 2 Serial Data
A4 - - Not Used
A5 0.35 GY 8 Instrument Panel Lamp Supply Voltage
A6 0.35 BK 150 Ground
A7 0.35 D-GN 734 Inside Air Temperature Sensor Signal
A8 0.35 GY 720 Low Reference
B1 0.35 BK 516 Upper Left Air Temperature Sensor Signal
B2 - - Not Used
B3 0.35 TN 517 Upper Right Air Temperature Sensor Signal
B4 0.35 PU 719 Low Reference
B5 0.35 L-BU/BK 590 Driver Sunload Sensor Signal
B6 0.35 GY 1548 Passenger Sunload Sensor Signal
B7 0.35 BN 718 Low Reference
B8 0.35 BK/WH 1551 Ground
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)