Decades ago, like the 1990s automobile industry, the off-highway industry was
purely recognized as a mechanical entity. In the mechanical system, accuracy and
troubleshooting of faults were significant concerns. Additionally, the
continuous stringent emission norms by the government call for the adaptation of
the aftertreatment and DeNOx led to more complexity and challenges. To meet the
government emission regulation and product performance, thorough functionality
testing of manufactured units was crucial. For this purpose, EOL/diagnostics
testers are developed. Diagnostic protocol CAN establish the connection between
ECU and tester due to its robustness and data handling capabilities. This paper
aims to develop and test the end-of-line (EOL) tester for off-highway diesel
engines. The communication between the tester and ECU will be over UDSonCAN,
conforming to standard ISO14229. This tester will cover the synchronization of
various components used to assemble the engine and maintain a consumption
record. The vital tester implemented the following roles: communication, reading
diagnostic trouble code (DTC), data measurement, data logging, and programming
data with a friendly and compatible interface. Also, the tool will distinguish
nonfunctional units, reduce the rejection rate, and help to maximize
productivity by performing appropriate diagnostic checks in case of any faulty
situation. The tester will ease the aftertreatment and DeNOx testing.