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Dorman 599-019 HVAC Control Module - Front or Rear
Dorman 599-019 HVAC Control Module
Restore climate control operation with this Dorman HVAC control module for automatic temperature control systems. It is a fully tested replacement for the original unit and is built for direct bolt-on installation in supported applications.
Compatible with 2002 Chevrolet Trailblazer, 2002 Chevrolet Trailblazer EXT, 2002 GMC Envoy, 2002 GMC Envoy XL, and 2002 Oldsmobile Bravada in front or rear automatic air conditioning control positions.
- Automatic temperature control application
- No programming required
- Female connector with male terminals
- Black housing with bolt-on mounting type
- 36 terminal positions and 16-pin configuration
- Package contents: 1 HVAC control module
Detailed Product Information
Dorman 599-019 is an HVAC control module replacement for vehicles equipped with automatic temperature control. It is intended to replace a malfunctioning original module and restore normal climate control functions in supported 2002 Chevrolet Trailblazer, Trailblazer EXT, GMC Envoy, GMC Envoy XL, and Oldsmobile Bravada applications. This part cross-references OE-style numbers 15-72778 and 15077479 for the same application.
The module uses a female connector, male terminals, and a bolt-on mounting design. Because programming is not required, installation is straightforward when the vehicle’s connector, terminal layout, and mounting points match the original unit. The Dorman 599-019 part number is a direct reference for shoppers searching for a replacement HVAC control module for 2002 Trailblazer and Envoy automatic climate control systems.
Common Problems This Part Can Address
- Climate controls that no longer respond
- Automatic temperature control functions that stop operating correctly
- Loss of blower, mode, or temperature command input through the control head
- Intermittent HVAC operation caused by a failed original module
- Need for a replacement HVAC control module after electrical failure
Installation Notes and Tips
Verify connector style, terminal count, and mounting layout against the original module before installation. This unit mounts with a bolt-on design and does not require programming, but the vehicle must be equipped with automatic temperature control. Confirm whether your application uses the front or rear HVAC control position listed for your vehicle before ordering.
Quality Assurance
This Dorman replacement module is fully tested before release to help ensure proper operation in the listed applications. For buyers comparing HVAC control module options, Dorman 599-019 provides a direct replacement path for supported 2002 Chevrolet Trailblazer, GMC Envoy, and Oldsmobile Bravada automatic climate control systems.
| Brand | Dorman |
|---|---|
| Part Number | 599-019 |
| Automatic Temperature Control | Yes |
| Connector Gender | Female |
| Housing Color | Black |
| Instruction Manual Included | No |
| Mounting Hardware Included | No |
| Mounting Type | Bolt On |
| Package Contents | 1 HVAC Control Module |
| Pin Count | 16 |
| Programming Required | No |
| Terminal Gender | Male |
| Terminal Quantity | 36 |
| Terminal Type | Pin |
This part fits 10 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2002 | Chevrolet | Trailblazer | Front | Remanufactured automatic air conditioning controls |
| 2002 | Chevrolet | Trailblazer | Rear | Remanufactured automatic air conditioning controls |
| 2002 | Chevrolet | Trailblazer EXT | Front | Remanufactured automatic air conditioning controls |
| 2002 | Chevrolet | Trailblazer EXT | Rear | Remanufactured automatic air conditioning controls |
| 2002 | GMC | Envoy | Front | Remanufactured automatic air conditioning controls |
| 2002 | GMC | Envoy | Rear | Remanufactured automatic air conditioning controls |
| 2002 | GMC | Envoy XL | Front | Remanufactured automatic air conditioning controls |
| 2002 | GMC | Envoy XL | Rear | Remanufactured automatic air conditioning controls |
| 2002 | Oldsmobile | Bravada | Front | Remanufactured automatic air conditioning controls |
| 2002 | Oldsmobile | Bravada | Rear | Remanufactured automatic air conditioning controls |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.