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HVAC Control Module X1

WARNING: This page is about a different car, the 2008 Pontiac G5 and 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: HVAC Control Module X1 Connector End View
GM1454407Courtesy of GENERAL MOTORS CORP.
HVAC Control Module X1

Pin Wire Circuit Function
1 0.35 L-GN 2275 Mode Door Position Signal
2-3 - - Not Used
4 0.35 L-BU/BK 1688 5-Volt Reference - 2
5 0.35 L-GN/BK 1647 Open Recirculation Door Control - B
6 0.35 PK/WH 1648 Close Recirculation Door Control - A
7 0.5 PK 339 Ignition 1 Voltage
8 0.5 PK 339 Ignition 1 Voltage
9 0.35 D-BU 1646 Auxiliary Air Temperature Door Position Signal
10 - - Not Used
11 0.35 D-GN 71 Off Blower Motor Control
12 0.35 L-BU/BK 1688 5-Volt Reference - 2
13 0.35 WH/BK 1236 Auxiliary Air Temperature Door Control
14 0.35 TN 2273 Mode Door Control
15 0.35 BK/WH 550 Ground
16 0.35 BK/WH 550 Ground
Connector Part Information 
  • OEM: 15416970
  • Service: 15394150
  • Description: 16-Way F Micro-Pack 64 Modular (BK)
Terminal Part Information 
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
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