Modern heavy trucks feature numerous moving UD parts and electronic components supporting these systems. Whether the problem is with the engine, gearbox, or braking system, it is typically diagnosed electronically.

Truck operators utilise diagnostic instruments referred to as fault clearers to diagnose vehicle issues correctly. Therefore, a critical question emerges -what is the purpose of a fault reader? When a truck's electronic control units (ECUs) detect a malfunction, they generate fault codes. Instead of conducting a great deal of manual examination, operators can read these fault codes to obtain critical information regarding vehicle problems.

What Exactly Are OBD II Codes?

On-board diagnostics, or OBD, is a system that stores error codes that pertain to various functional areas of a vehicle. Initially, diagnostic systems for trucks were reasonably rudimentary, merely alerting drivers to potential problems with a malfunction sign. The problem was that drivers had difficulty deciphering the codes because they varied from manufacturer to manufacturer.

Thus, in 1996, OBD II codes were established. Due to this standardised structure, all truck diagnostics will report the same error codes. It has enabled the creation of universal fault readers, simplifying things for operators and allowing for more excellent reliability. Diagnostic error codes are the terms used to describe the numbers (DTC).

Analysing Diagnostic Trouble Codes

A diagnostic trouble code features a 5-digit display, with all codes preserving this similar pattern to make it easy for operators. Rather than being a digit, the first digit is a letter, which indicates the specific region where the problems have been discovered.

The next digit can be 0 or 1, with 0 suggesting a genetic defect and 1 showing a manufacturer-specific problem. Finally, the last three numbers show the precise vehicle circuit and system where the problem has been discovered.

The operator can then take the necessary steps once they have determined the source and nature of the problem. They may find out how long repairs will take and what aftermarket parts for trucks they could require in a flash.

Heavy-Duty Bosch Scantool

The Bosch Handheld Scantool of the most recent version is an excellent diagnostic tool that can access the OBD II codes and meets all SAE criteria for heavy-duty communication (CAN) systems. You can link the gadget online to update information and add new Scania parts is an outstanding feature.

The Bosch Scantool operates on either 12V or 24V electricity and may detect problems and mistakes in the engine, transmission, and braking systems. While you often use bulkier diagnostic equipment in a stationary area such as a garage, the Bosch is an excellent portable alternative. It gives a high level of flexibility and uses for repairs in the field where it may be necessary to read and clear standard fault codes.

Jaltest PTE

Jaltest is a well-known name in heavy vehicle communication and diagnostics. The Jaltest PTE portable fault reader offers excellent usability for testing DDF parts. The PTE has a sturdy carrying case, ensuring that it will not be readily damaged when not in use, and is designed to be used by a single operator without help.

Users can examine electrical signals, lighting equipment, and communication lines with the Jaltest PTE. It is self-powered and uses simple ISO connectors to test trailer lights even when the truck is not attached.