Cardone 73-42100 Transfer Case Control Module

Transfer Case Control Module for NP1 Applications

The Cardone 73-42100 transfer case control module is a remanufactured replacement for select GM and Isuzu 4x4 applications with the NP1 transfer case. It is pre-programmed at the factory for direct installation and is built to restore transfer case communication and shift control.

Compatible With 1998-2005 Chevrolet Blazer, GMC Jimmy, Chevrolet S10, GMC Sonoma, Isuzu Hombre, and 1999 Oldsmobile Bravada applications listed below.

Key Features

• Remanufactured transfer case control module for NP1-equipped vehicles
• Factory pre-programmed for the listed applications
• 100% computerized testing verifies function before release
• Critical components are resoldered to improve electrical connection quality
• Common wear components are fully replaced during remanufacturing
• Meets or exceeds OEM performance targets
• Guaranteed fit and function for the specified vehicle applications
• Pin/male connector configuration with 30 terminals

Product Details

Cardone Transfer Case Control Module 73-42100 is engineered for quick installation and reliable operation in transfer case control systems. The remanufacturing process focuses on electrical integrity, with computerized validation, resoldered critical joints, and replacement of common wear items to help maintain stable module performance. This part is built for vehicles using the NP1 transfer case and OE reference 15741322, making it a direct replacement choice for service work on Chevrolet Blazer, GMC Jimmy, Chevrolet S10, GMC Sonoma, Isuzu Hombre, and Oldsmobile Bravada models.

This part cross-references Isuzu 8157413220 for the same application.

Common Problems This Module Can Address

• Transfer case shift commands not responding correctly
• Intermittent 4WD engagement or disengagement
• Electrical faults caused by worn internal solder joints
• Module communication issues related to transfer case control
• Driveability concerns tied to a failed OE transfer case control module

Installation Notes and Tips

• Verify the vehicle has the NP1 transfer case and OE reference 15741322 before ordering.
• Confirm the connector style and 30-terminal layout match the original module.
• This unit is pre-programmed at the factory, which supports direct replacement on the listed applications.
• Inspect related wiring, connectors, and transfer case components during installation to avoid repeat faults.
• After installation, follow the vehicle’s relearn or diagnostic procedures if required by the service manual.

Quality Assurance

Each Cardone remanufactured transfer case control module is tested with automated computerized equipment and validated for form, fit, durability, and performance. The remanufacturing process is designed to meet or exceed OEM performance expectations for the specified applications.