Dorman 599-103 Transfer Case Control Module

Reliable Transfer Case Control Module for Buick, Oldsmobile, and Saab

The Dorman 599-103 Transfer Case Control Module is designed to provide precise control and reliable operation for select Buick, Oldsmobile, and Saab vehicles. Engineered with a black connector and pin-type terminals, this module ensures secure electrical connections and consistent performance.

• Connector color: Black for easy identification and compatibility
• Terminal type: Pin terminals for secure and reliable electrical contact
• Includes one transfer case control module per package
• Compatible with Buick Bravada, Oldsmobile Bravada, and Saab 9-7x and Rainier models

Detailed Description of the Dorman 599-103 Module

This transfer case control module from Dorman is specifically designed to meet the electrical and mechanical requirements of transfer case systems in Buick, Oldsmobile, and Saab SUVs. The black connector housing provides durability and resistance to environmental factors, while the pin terminal design ensures a stable connection to the vehicle’s wiring harness. The module is engineered to integrate seamlessly with the vehicle’s drivetrain control system, maintaining proper transfer case engagement and shifting functions.

Common Applications and Problem Resolution

This transfer case control module is used to manage the transfer case operation in the following vehicles:

• Buick Bravada
• Oldsmobile Bravada
• Saab 9-7x
• Saab Rainier

It addresses issues such as:

• Erratic or failed transfer case shifting
• Loss of four-wheel drive engagement
• Intermittent electrical connection problems due to worn terminals
• Fault codes related to transfer case control malfunctions

Installation Notes and Tips

When installing the Dorman 599-103 transfer case control module, ensure the vehicle’s battery is disconnected to prevent electrical shorts. Verify the black connector aligns correctly with the vehicle’s wiring harness and that pin terminals are free of corrosion or damage. Properly secure the module to avoid vibration-related issues. It is recommended to clear any diagnostic trouble codes after installation and perform a test drive to confirm correct transfer case operation.

Quality Assurance and Warranty Information

Dorman transfer case control modules are manufactured to meet or exceed OEM specifications. The 599-103 part undergoes rigorous testing to ensure durability and reliable performance under normal operating conditions. This product includes a limited warranty covering defects in materials and workmanship, providing confidence in its long-term functionality.