HVAC Control Module X2 (CJ3)

2006 Isuzu Ascender S, 4.2 S, 4WDSECTION HVAC Control Module X2 (CJ3)
WARNING: This page is about a different car, the 2008 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: HVAC Control Module X2 (CJ3) Connector End View
GM556473Courtesy of GENERAL MOTORS CORP.
HVAC Control Module X2 (CJ3)

Pin Wire Circuit Function
A 2 PU 73 Medium 3 Blower Motor Control
B 2 L-BU 72 Medium 2 Blower Motor Control
C 2 TN 63 Medium 1 Blower Motor Control
D 2 YE 60 Low Blower Motor Control
E - - Not Used
F 2 OG 52 High Blower Motor Control
G 3 BN 141 Ignition 3 Voltage
H 1 D-GN 71 OFF Blower Motor Control
Connector Part Information 
  • OEM: 15326924
  • Service: 15306174
  • Description: 8-Way F GT 280 Series Unsealed (BK)
Terminal Part Information 
  • Pins: H
  • Terminal/Tray: 15304711/8
  • Core/Insulation Crimp: 2/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: A-D, F
  • Terminal/Tray: 15304713/19
  • Core/Insulation Crimp: 4/4
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: G
  • Terminal/Tray: 15304713/19
  • Core/Insulation Crimp: F/D
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
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:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • 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.