HVAC Control Module - Auxiliary

2006 Isuzu Ascender S, 5.3 M, 4WDSECTION HVAC Control Module - Auxiliary
WARNING: This page is about a different car, the 2007 Isuzu Ascender, 2007 GMC Envoy, 2007 Chevrolet TrailBlazer, and 2007 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: HVAC Control Module - Auxiliary Connector End View
GM280793Courtesy of GENERAL MOTORS CORP.
HVAC Control Module - Auxiliary Connector Parts Information

Connector Part Information 
  • OEM: 12052444
  • Service: 12101874
  • Description: 8-Way F Micro-Pack 100 Series Unsealed (BK)
Terminal Part Information 
  • Pins: 1, 4, 6-8
  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)
HVAC Control Module - Auxiliary Connector Terminal Identification

Pin Wire Color Circuit No. Function
1 BN 341 Ignition 3 Voltage
2-3 - - Not Used
4 YE 2277 Auxiliary HVAC Enable Control
5 - - Not Used
6 WH 119 Auxiliary Mode Door Control
7 BK 2250 Ground
8 BN/WH 230 Instrument Panel Lamps Dimming Control
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

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

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