What a report may contain
Depending on the system and report, buyers may encounter engine hours, idle hours, odometer-related information, active or historical faults, aftertreatment information, regeneration information and operating parameters. Do not assume every report contains every field.
Match the report to the truck
Confirm the VIN, engine serial number, report date, odometer and hours against the truck and seller documentation. Ask who produced the report and with which diagnostic system.
Fault information needs interpretation
An active or historical code identifies recorded electronic information; it is not by itself a complete diagnosis. Ask for repair invoices, clearing dates and follow-up testing where relevant.
Hours and idle evidence
Compare engine hours and idle hours with odometer kilometres, maintenance intervals and stated duty cycle. A mismatch is a question to investigate, not an automatic finding of wrongdoing or mechanical failure.
Evidence principle
ECM data should be considered alongside maintenance records, physical inspection, road testing, build information and seller documentation.
Confirm the process that applies
Requirements and records vary by truck, manufacturer, province, transaction and intended use. Use authoritative registries, agencies, service providers and qualified advisers for the actual purchase.