M4.x
Motorola 68xxx-based ECUs used almost exclusively in Volvo vehicles.
| Era | 1994–2002 |
| File sizes | 64–128 KB |
| Variants | M4.3 (Volvo 850/960/S70/V70), M4.4 (Volvo S60/S70/V70/S80) |
| Vehicles | Volvo petrol |
Detection
Size gate + Volvo-era signatures. Checksums: no family profile.