📌 BENCH GPT & HARDWARE ARCHITECTURE · NXP MPC5565

Magneti Marelli MJ8DF & MJ8F3 (Fiat Ducato / Doblo / 500 / Combo 1.3 & 2.3 MultiJet) — Bench GPT, Boot & Calibration Guide

Magneti Marelli MJ8DF & MJ8F3 (Fiat Ducato / Doblo / 500 / Combo 1.3 & 2.3 MultiJet) is built on the NXP MPC5565 microcontroller (2 MB IntFlash + 95640 / 95128 EEPROM) and supports OBD / Bench I/O Terminal / Direct Connector (No Opening) powered by a 13.6V Bench PSU. Direct connector bench read without opening glued casing! Reset DPF & Oil Degradation counter via scan tool before writing DPF Off.

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Hardware & Memory Specifications

Engineering Parameter	Verified Controller Specification
Controller & Platform	Magneti Marelli MJ8DF & MJ8F3 (Fiat Ducato / Doblo / 500 / Combo 1.3 & 2.3 MultiJet)
Microcontroller (MCU)	`NXP MPC5565`
Non-Volatile Memory	`2 MB IntFlash + 95640 / 95128 EEPROM`
Connection / Programming Modes	OBD / Bench I/O Terminal / Direct Connector (No Opening)
Recommended Bench Supply	13.6V Bench PSU (low-ripple regulated laboratory PSU)
Critical Workshop Protocol	Direct connector bench read without opening glued casing! Reset DPF & Oil Degradation counter via scan tool before writing DPF Off.

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ENGINEERING Q&A

Frequently Asked Technical Questions

What microcontroller and memory size does Magneti Marelli MJ8DF & MJ8F3 (Fiat Ducato / Doblo / 500 / Combo 1.3 & 2.3 MultiJet) use?

Magneti Marelli MJ8DF & MJ8F3 (Fiat Ducato / Doblo / 500 / Combo 1.3 & 2.3 MultiJet) uses the NXP MPC5565 processor with 2 MB IntFlash + 95640 / 95128 EEPROM.

How should Magneti Marelli MJ8DF & MJ8F3 (Fiat Ducato / Doblo / 500 / Combo 1.3 & 2.3 MultiJet) be read on the bench?

Use OBD / Bench I/O Terminal / Direct Connector (No Opening) with a 13.6V Bench PSU. Direct connector bench read without opening glued casing! Reset DPF & Oil Degradation counter via scan tool before writing DPF Off.