Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSISUZU2006ASCENDER S, 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 225 (HVAC SYSTEM - AUTOMATIC)REPAIR INSTRUCTIONSHVAC CONTROL MODULE REPLACEMENTINSTALLATION PROCEDURE

2006 Isuzu Ascender S, 4.2 S, 4WD

Installation Procedure

2006 Isuzu Ascender S, 4.2 S, 4WDSECTION Installation Procedure

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: View Of HVAC Control Module

Courtesy of GENERAL MOTORS CORP.

Connect the electrical connectors (1) to the HVAC control module (2).

IMPORTANT: Ensure that the HVAC control module tabs (3) lock into place.

Install the HVAC control module (2) into the I/P (4).

NOTE: Refer to FASTENER NOTICE .

Install the HVAC control module screws.
Tighten: Tighten the screws to 1.9 N.m (17 lb in).
Install the I/P accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement (Buick) or Instrument Panel Accessory Trim Plate Replacement (GMC) orInstrument Panel Cluster Trim Plate Bezel Replacement (Chevrolet) or Instrument Panel Cluster Trim Plate Bezel Replacement (GMC, Buick) .

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.