HVAC Control Module X3 (C68)

2004 Oldsmobile Bravada AWDSECTION HVAC Control Module X3 (C68)
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: HVAC Control Module X3 (C68) Connector End View
GM1664552Courtesy of GENERAL MOTORS CORP.
HVAC Control Module X3 (C68)

Pin Wire Circuit Function
1 0.35 BN 520 Lower Right Air Temperature Sensor Signal
2 0.35 L-GN 2275 Mode Door Position Signal
3 0.35 PU 1838 Recirculation Door Position Signal
4 0.35 GY/BK 754 Blower Motor Speed Control
5 0.5 BN 2273 Mode Door Control
6 - - Not Used
7 0.5 D-GN 1614 Recirculation Door Control
8 0.5 BN 1199 Left Air Temperature Door Control
9 - - Not Used
10 0.35 GY 598 5-Volt Reference
11-12 - - Not Used
13 0.35 L-GN 2275 Mode Door Position Signal
14 0.35 WH 2622 Air Temperature Sensor Signal
15 0.5 D-GN 119 Mode Door Control
16 - - Not Used
17 0.5 D-GN 2274 Recirculation Door Control
18 0.5 D-GN 1316 Air Temperature Door Control
19 0.35 TN 552 Low Reference
20 0.35 YE 1791 Low Reference
Connector Part Information 
  • OEM: 31410-1201
  • Service: See Catalog
  • Description: 20-Way F 0.64 Series Sealed (GY)
Terminal Part Information 
  • Terminal/Tray: 7116-4618-02/14
  • Core/Insulation Crimp: P/P
  • Release Tool/Test Probe: J-38125-215/J-35616-64B (L-BU)
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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