Dorman 599-866 ABS Control Module

OE FIX ABS Control Module for GM Trucks

This Dorman ABS control module is a newly manufactured replacement for select GM heavy-duty trucks with known original-module relay failures. Part number 599-866 is built as an OE FIX solution for 2001-2002 Chevrolet Silverado 3500 and 2001-2002 GMC Sierra 3500 models equipped with RPO code JH7.

Key Features

• Direct replacement ABS control module for select GM brake systems
• Redesigned for improved durability versus the original equipment design
• No programming required for installation
• Bolt-on attachment method for a secure fit
• Metal and plastic housing construction
• 3 connectors, 20 terminals, and 11 connector terminals
• Dimensions: 5.25 in. long, 4.75 in. wide, 2 in. high

Detailed Description

Dorman 599-866 is an ABS control module engineered for 2001-2002 Chevrolet Silverado 3500 and 2001-2002 GMC Sierra 3500 trucks with JH7 equipment. It addresses a common failure point in the original GM module, where relay issues can lead to premature breakdown. This replacement module is newly manufactured and redesigned to improve long-term durability while maintaining the correct electrical and mounting layout for the application.

This part cross-references GM 15100884 for the same application.

What It Helps Fix

• ABS warning light caused by module failure
• Loss of anti-lock brake function
• Brake system faults related to failed internal relays
• Intermittent ABS operation on affected GM trucks
• Diagnostic trouble codes tied to the ABS control module

Installation Notes and Tips

Compatible With 2001-2002 Chevrolet Silverado 3500, N/A, w/RPO Code JH7 (12,000 Lb. GVW, Power Brakes, Hydraulically Boosted, 4 Wheel Disc). Compatible With 2001-2002 GMC Sierra 3500, N/A, w/RPO Code JH7 (12,000 Lb. GVW, Power Brakes, Hydraulically Boosted, 4 Wheel Disc). Verify the vehicle’s RPO code and connector layout before installation. No programming is required, which simplifies replacement on the correct application.

Quality Assurance

Dorman manufactures this OE FIX module as a redesigned replacement for the original GM ABS control module failure point. It is built for regular brake service use and supplied as a new control module for the listed applications.