AMP Research Replacement OBD II Control Module

This AMP Research replacement or installation component supports a specific PowerStep, BedStep, or BedXtender configuration. Match the exact system generation, connection, mounting interface, and manufacturer part number before ordering.

Key Features

• Complete Kit Includes all necessary components for the repair.

Fitment

Specifications

What’s Included

One new AMP Research running board in the configuration and quantity identified by this listing. Only parts expressly shown in the current manufacturer parts list are included.

About AMP Research

AMP Research develops powered running boards, cargo-access steps, bed extenders, and application-specific service components for trucks, Jeeps, SUVs, and vans. Product selection depends on the exact part number and complete vehicle or system application.

Related Parts

• AMP Research 2002-2008 Dodge Ram 1500 Quad Cab PowerStep – Black
• AMP Research 2004-2007 Ford F250/F350/450 All Cabs PowerStep – Black
• Shop all AMP Research products
• Shop running boards

Frequently Asked Questions

Will AMP Research 19-03981-91 fit or match my vehicle or system?
Match the exact AMP Research system part number, generation, connector, mounting interface, dimensions, and current service documentation.

Can this part replace a similar-looking AMP component?
Not unless AMP Research identifies it as compatible. Controllers, motors, harnesses, modules, brackets, and gears can change between system generations.

Does this listing include a complete PowerStep or BedStep kit?
No, unless the title expressly states a complete kit. This listing is for the replacement or installation component identified on the page.

Should the system be tested before reassembly?
Yes. Verify connections, grounds, travel, lighting, and fault-free operation before reinstalling trim or closing the work area.

Installation Instructions

1. Verify AMP Research part number 19-03981-91 and the exact compatible system generation.
2. Disconnect power when working on electrical or powered-step components and support moving assemblies before removing hardware.
3. Replace the component with the current AMP Research service instructions, correct connectors, fasteners, routing, and torque values.
4. Test every related function before reinstalling trim or returning the vehicle to service.