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HOMESERVICE MANUALSISUZU2006ASCENDER S, 5.3 M, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 186 (HVAC SYSTEM - MANUAL)COMPONENT LOCATORHVAC CONNECTORSHVAC CONTROL MODULE C1
2006 Isuzu Ascender S, 5.3 M, 4WD

HVAC Control Module C1

2006 Isuzu Ascender S, 5.3 M, 4WDSECTION HVAC Control Module C1
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 C1 Connector End View
GM130690Courtesy of GENERAL MOTORS CORP.
HVAC Control Module C1 Connector Parts Information

Connector Part Information 
  • OEM: 12110206
  • Service: 12110206
  • Description: 24-Way F Micro-Pack 100 Series Unsealed (L-BU)
Terminal Part Information 
  • Pins: A1-A5, A7-A8, A10, A12, B1-B12
  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)
  • Pins: A11
  • Terminal/Tray: 12146448/19
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)
HVAC Control Module C1 Connector Terminal Identification

Pin Wire Color Circuit No. Function
A1 D-GN 1614 Recirculation Door Control
A2 D-BU 1646 Right Air Temperature Door Position Signal
A3 L-BU 733 Left Air Temperature Door Position Signal
A4 L-GN/BK 2276 Defrost Door Position Signal
A5 L-GN 2275 Mode Door Position Signal
A6 - - Not Used
A7 BN/WH 230 Instrument Panel Lamps Dimming Control
A8 BK/WH 751 Ground
A9 - - Not Used
A10 YE 2277 Auxiliary HVAC Enable Control
A11 D-GN 71 OFF Blower Motor Control
A12 D-BU 204 A/C Low Pressure Sensor Signal
B1 WH/BK 1236 Right Air Temperature Door Control
B2 D-BU 1199 Left Air Temperature Door Control
B3 TN/BK 2274 Defrost Door Control
B4 TN 2273 Mode Door Control
B5 BN 341 Ignition 3 Voltage
B6 YE 1791 Low Reference
B7 OG 4340 Battery Positive Voltage
B8 L-BU/BK 1688 5-Volt Reference
B9 BK 2250 Ground
B10 - - Not Used
B11 WH 1038 Class 2 Serial Data
B12 L-GN 2278 A/C Compressor Status Signal
RENDER: 1.0x

NO RELATED

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

  • • You smell fuel, burning insulation, or see smoke.
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  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.