Dorman 601-237 Trailer Brake Control Module

Trailer Brake Control Module PCBA for GM Trucks

Dorman 601-237 is a trailer brake control module circuit board replacement for select General Motors vehicles with the NP0 transfer case code. It addresses a failed internal board without requiring replacement of the entire trailer brake control module assembly, helping reduce repair cost while restoring trailer brake control function.

Key Features

• Direct replacement circuit board for the trailer brake control module
• OE FIX solution for select GM applications with NP0 (Single Speed Electric Shift, MP3010 Transfer Case)
• 8-pin male terminal design
• No wiring harness included
• No housing included
• Package contents: 1 Trailer Brake Control Module PCBA

Detailed Description

This Dorman 601-237 trailer brake control module PCBA is built for select Chevrolet, GMC, and Cadillac vehicles where the original module circuit board has failed. Instead of replacing the complete assembly, this repair board allows service of the failed electronic portion only. It is a practical option for Silverado, Sierra, Tahoe, Yukon, Colorado, and Canyon applications that use the specified NP0 transfer case configuration.

This part cross-references OE numbers such as 22822677 and 84108373 for the same application. It is a focused repair solution for GM trailer brake control module failures where the housing and harness remain serviceable.

What It Helps Fix

• Trailer brake controller inoperative condition
• Intermittent trailer brake output
• Faults caused by a failed internal circuit board
• Need to replace the full module assembly when only the board has failed
• Repair costs associated with dealer-level complete module replacement

Installation Notes and Tips

Verify vehicle fitment by year, make, model, and RPO code NP0 before ordering. This module uses 8 male terminals and does not include a wiring harness or housing, so the existing components must be serviceable for installation. Confirm connector condition and inspect the surrounding trailer brake control system for related faults before replacing the board. Fits 2016-2021 Chevrolet Colorado, N/A; Fits 2016-2021 GMC Canyon, N/A; Fits 2016-2020 Chevrolet Tahoe, N/A; Fits 2016-2020 GMC Yukon, N/A; Fits 2016-2020 GMC Yukon XL, N/A; Fits 2015-2019 Chevrolet Silverado 1500, N/A; Fits 2019 Chevrolet Silverado 1500 LD, N/A; Fits 2014-2019 Chevrolet Silverado 2500 HD, N/A; Fits 2014-2019 Chevrolet Silverado 3500 HD, N/A; Fits 2015-2019 GMC Sierra, N/A; Fits 2015-2019 GMC Sierra 1500, N/A; Fits 2019 GMC Sierra 1500 Limited, N/A; Fits 2014-2019 GMC Sierra 2500 HD, N/A; Fits 2014-2019 GMC Sierra 3500 HD, N/A; Fits 2014-2018 Chevrolet Silverado 2500, N/A; Fits 2015-2018 Chevrolet Silverado 3500, N/A; Fits 2014-2017 Cadillac Escalade, N/A; Fits 2014-2017 Cadillac Escalade ESV, N/A; Fits 2015-2017 Chevrolet Cheyenne, N/A.

Quality Assurance

Dorman OE FIX parts are engineered to address common original-component failures with a repair-focused design. This part is intended for select GM trailer brake control module applications and is built to replace the failed circuit board rather than the entire assembly.