Happy New Year from Diesel Repair!

In 2022, we added 360,167 new documents, around a million new pages, and thousands of graphics to the platform. Heading into 2023, Diesel Repair offers loads of repair information, including new Remove and Replace Instructions, Torque Specifications, Maintenance Intervals, Engine Specifications, and more.

Here’s an itemized breakdown of the new repair info you’ll find inside Diesel Repair:

35,000+ New Pages of Wiring Diagrams for:

Wiring diagrams for commercial trucks can be challenging to find. The original equipment manufacturers (OEMs) don’t make them easy to obtain, often hidden behind paywalls or expensive software packages. Adding to the complexity is that each manufacturer has a different standard for wiring diagrams, which means they use different colors, icons, and symbols in their diagrams. Our coverage includes:


  • Allison
  • Bendix
  • Blue Bird Bus
  • Caterpillar
  • Cummins
  • Detroit Diesel
  • Eaton
  • Ford
  • Freightliner
  • General Motors
  • GMC
  • Hino
  • International
  • Isuzu
  • Kenworth
  • Mac
  • Mitsubishi
  • Peterbilt
  • Sprinter
  • Volvo
  • Wabco
  • Western Star.

360,000+ New Technical Repair Docs, including:

Technical Repair Docs is the module on Diesel Repair that gives you access to a library of PDFs that contain technical information to repair a commercial truck. The Technical Repair Docs section has been carefully organized to allow easy navigation so that you can quickly find the repair information you are looking for.

  • Maintenance Intervals
  • Engine Specifications
  • Torque Specifications
  • Recalls
  • Technical Service Bulletins (TSBs)
  • Remove & Replace Instructions

Thousands of New Fault Codes for:

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 the 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. Our coverage includes:

  • Caterpillar
  • Chevrolet,
  • Chevrolet Duramax
  • Cummins
  • Detroit Diesel
  • Ford PowerStroke
  • GMC Duramax
  • HINO
  • HINO Transmission
  • HINO Cab Controllers
  • International
  • International Cab & Chassis Controllers
  • Isuzu
  • Mercedes-Benz
  • Mack
  • Mack mDrive
  • Mitsubishi FUSO
  • Mitsubishi FUSO Transmission
  • Mitsubishi FUSO ABS
  • Mitsubishi FUSO Cab & Chassis Controllers
  • RAM Cummins
  • Sprinter
  • Volvo
  • Volvo iShift
  • Volvo Truck Cab & Chassis Controllers
  • Allison
  • Eaton
  • Meritor
  • Bendix ABS – Hydraulic
  • Bendix ABS – Air
  • Bendix VORAD ADAS
  • WABCO OnGuard & OnLane ADAS Systems
  • Freightliner Cab & Chassis Controllers
  • Freightliner Custom Chassis Corporation Body Controllers
  • Kenworth Cab & Chassis Controllers
  • Peterbilt Cab & Chassis Controllers
  • RAM Cab & Chassis Controllers
  • Thomas Built Buses
  • Western Star Cab & Chassis Controllers

Equipment Fault Codes:

Today’s off-highway diesel-powered equipment has never been more advanced. With today’s machines having the newest emission technology, GPS, computer-controlled hydraulic systems, and in-cab display panels, they have never been more complicated. There are many computers with an almost endless list of fault codes that could be triggered. Our coverage includes:

  • Bobcat
  • CASE
  • CASE New Holland
  • Caterpillar
  • Challenger
  • Cummins
  • Deutz
  • Deutz Fahr
  • Doosan
  • FPT
  • Ford
  • Genie
  • HINO
  • Hitachi
  • Isuzu
  • JCB
  • JLG
  • John Deere
  • Kobelco
  • Komatsu
  • Kubota
  • LS Mtron
  • Liebherr
  • Link Belt
  • MTU
  • Mitsubishi
  • New Holland
  • Perks
  • Shibaura
  • Takeuchi
  • Volvo
  • Terex
  • Yanmar

In 2022, we also added new features:

Customer Connect

The Customer Connect module makes it easy to find fleets, dealerships, independent garages, towing services, and more in minutes. Once you know what sort of customers you’re looking for, Customer Connect can bring them in with just a few clicks.

Testing Procedures

The Testing Procedures module takes the guesswork out of finding out what’s wrong with a vehicle and getting it fixed right the first time. From fault code troubleshooting to symptom diagnostics, Testing Procedures archives decades of heavy-duty maintenance and troubleshooting, so you never have to reinvent the wheel.


And there’s much more to come in 2023– more repair docs, more repair graphics and diagrams, and more repair module features… each and every month to help you fix what’s broken and keep rolling.