Not every ECU question is an emissions question. Many claims concern vehicle defects, component damage, maintenance models, or systematic behavior after software updates. 43IT investigates whether the cause lies in ECU code, calibrations, diagnostic data, EEPROM content, or the interaction between software and vehicle operation.

Example topics

• DPF regeneration strategy and DPF load models
• Catalyst aging, component protection, and thermal management
• Oil-quality models, maintenance counters, and service logic
• SCR dosing, heating, and diagnostic thresholds

Our contribution

We translate technical implementations into a robust explanation of vehicle behavior. We can compare individual vehicles, ECU variants, software versions, or larger data sets.

The goal is not an abstract description of the system, but a clear answer to the concrete dispute questions:

• What software logic is implemented?
• When is it active?
• What technical effect does it have?
• How reliably can that effect be shown?

Typical deliverables

• Early technical case assessment
• Control-flow and data-flow documentation
• Variant and version comparison tables
• Technical exhibits, summary tables, and written expert reports
• Disclosure request support and input
• Measurement and vehicle testing proposals
• Test data analysis and interpretation
• Expert meetings, hearing support, and oral evidence preparation

We describe implementation and technical effect. Legal assessment remains with legal teams and courts.