Truck Fault Codes

Diagnostic fault codes, or DTCs, are the codes your commercial truck or diagnostic tool displays when your vehicle has an issue. Diesel Repair contains a library of all known diagnostic fault codes for commercial trucks from when electronic control modules (ECMs) were first introduced all the way up to current year and models. Our system contains both the OEM and the generic fault codes, so no matter how you retrieve those codes from your vehicle you are easily able to find repair information.

Endless Data just for you

For free users of Diesel Repair, you will be able to search and view the entire database. We’ll give you descriptions of each truck fault code, along with “quick repair” information that will summarize possible failed components that could cause the fault code to appear.

For paid users, you will also receive the added benefit of view the detailed step-by-step repair information for each fault code. These guides have been developed by the subject matter experts at Diesel Laptops, and you’ll find that the information, look, and feel is consistent across all manufacturers.

Easy Search Database

Users can enter any search query, partial or full. This ensures they can easily find what they are looking for in our database

Created by Experts

Every code has been summarized by our subject matter experts to give you a list of possible repairs to fix your truck fault code

Repairs Made Simple

Users on the Diesel Repair Standard or Pro plan can download step-by-step PDFs that contain color coded yes/no troubleshooting trees to guide them through the diagnostic procedure

Fault Codes Coverage

Our Experts have created Fault Code Coverage for Engine Manufacturers, Transmissions, Anti-lock Bake Systems, and more, including:

You can also use our VIN Decoder tool to quickly and easily figure out which modules you need to be viewing.

Caterpillar

Chevrolet Duramax

Cummins

Detroit Diesel

Ford PowerStroke

GMC Duramax

HINO

International Engines

Isuzu Engines

Mercedes-Benz Engines

Mack Engines

Mitsubishi FUSO

PACCAR engines

RAM Cummins

Sprinter Engine

Volvo Engines

Allison

Chevrolet

Eaton

HINO tranmission

Mack mDrive

Meritor

Mitsubishi FUSO transmission

Volvo iShift

Bendix ABS- Hydraulic

Bendix ABS- Air

HINO ABS

Mitsubishi FUSO ABS

WABCO ABS

Bendix VORAD ADAS

Frieghtliner Cab & Chasis Controllers

Frieghliner Custom Chasis Corportation Body Controllers

Hino Cab Controllers

International Cab & Chasis Controllers

Kenworth Cab & Chasis Controllers

Mitsubishi FUSO Cab & Chasis Controllers

Peterbilt Cab & Chasis Controllers

RAM Cab & Chasis Controllers

Thomas Built Buses

Volvo Truck Cab & Chasis Controllers

WABCO OnGuard & OnLane ADAS Systems

Western Star Cab & Chassis Controllers

Access Truck Fault Codes and so much more today!

Diesel Repair is a freemium model, which means you can signup for an account today without entering any payment information and start being more efficient at repairing commercial trucks

CREATE YOUR ACCOUNT

Give us a call. (888) 983-1975

Give us a call.