Dorman 599-293 HVAC Control Module

Dorman 599-293 HVAC Control Module

Restore manual climate control operation with this Dorman HVAC control module. Built as a fully tested replacement for the original unit, it addresses failed heater and A/C controls on a wide range of Chevrolet Express and GMC Savana vans, including 2001-2024 Chevrolet Express 2500 and 3500 and 2001-2024 GMC Savana 2500 and 3500 applications.

Key Features

• Manual control type for vehicles equipped with non-automatic HVAC controls
• No programming required for replacement installation
• Bolt-on mounting design
• 5 connectors, 17 terminals, and 23-pin count configuration
• Black and white housing
• Replacement for original part numbers 9375805 and 15773676
• Dorman part number 599-293 for direct reference during ordering and service

Detailed Description

The Dorman 599-293 HVAC control module is a direct replacement for the original climate control unit in select Chevrolet Express and GMC Savana vans. It is intended for manual HVAC systems and does not require programming, which helps simplify the repair process when the factory module stops responding or no longer controls temperature, fan speed, or airflow settings correctly. This part number 599-293 is also cross-referenced for the same application with OE numbers 9375805 and 15773676.

Compatible With 2001-2024 Chevrolet Express 2500, 2001-2024 Chevrolet Express 3500, 2001-2024 GMC Savana 2500, 2001-2024 GMC Savana 3500, 2001-2014 Chevrolet Express 1500, 2001-2014 GMC Savana 1500, 2001-2002 Chevrolet G30, 1996 Chevrolet G30, and 1996 GMC G3500. Use the vehicle’s existing connector layout and mounting style to confirm application before replacement.

Common Problems This Part Can Solve

• HVAC controls that no longer respond to knob or switch input
• Loss of fan speed, temperature, or mode selection control
• Intermittent climate control operation caused by a failing module
• Broken or worn original control head in manual HVAC systems
• Need for a replacement module after electrical failure in the dash control unit

Installation Notes and Tips

Verify the vehicle uses manual HVAC controls before ordering. This module mounts with a bolt-on design and uses the existing connector and terminal layout, so compare the original unit’s connector count, terminal count, and housing shape before installation. No instruction manual, mounting hardware, or wire harness is included.

Quality Assurance

Dorman supplies this replacement HVAC control module as a fully tested unit for service use. It is built to restore factory-style operation on supported Chevrolet Express and GMC Savana applications without requiring additional programming.