📌 BENCH GPT & HARDWARE ARCHITECTURE · MOTOROLA MPC555 / MPC561 / MPC562

Bosch EDC16U1 / EDC16U34 / EDC16C34 / EDC16C39 — Bench GPT, Boot & Calibration Guide

Bosch EDC16U1 / EDC16U34 / EDC16C34 / EDC16C39 is built on the Motorola MPC555 / MPC561 / MPC562 microcontroller (1 MB / 2 MB Flash + MPC + 95160/95320/95640 EEPROM) and supports Bench Service Mode (AMT-BST / Flex / FoxFlash) / OBD / BDM powered by a 13.5V Bench PSU. Note: OBD reads partial map area on many EDC16 variants; Full Bench Service Mode reads complete 2 MB Flash for 100% switch coverage (EGR hysteresis, DPF, Hot-Start).

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Hardware & Memory Specifications

Engineering Parameter	Verified Controller Specification
Controller & Platform	Bosch EDC16U1 / EDC16U34 / EDC16C34 / EDC16C39
Microcontroller (MCU)	`Motorola MPC555 / MPC561 / MPC562`
Non-Volatile Memory	`1 MB / 2 MB Flash + MPC + 95160/95320/95640 EEPROM`
Connection / Programming Modes	Bench Service Mode (AMT-BST / Flex / FoxFlash) / OBD / BDM
Recommended Bench Supply	13.5V Bench PSU (low-ripple regulated laboratory PSU)
Critical Workshop Protocol	Note: OBD reads partial map area on many EDC16 variants; Full Bench Service Mode reads complete 2 MB Flash for 100% switch coverage (EGR hysteresis, DPF, Hot-Start).

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ENGINEERING Q&A

Frequently Asked Technical Questions

What microcontroller and memory size does Bosch EDC16U1 / EDC16U34 / EDC16C34 / EDC16C39 use?

Bosch EDC16U1 / EDC16U34 / EDC16C34 / EDC16C39 uses the Motorola MPC555 / MPC561 / MPC562 processor with 1 MB / 2 MB Flash + MPC + 95160/95320/95640 EEPROM.

How should Bosch EDC16U1 / EDC16U34 / EDC16C34 / EDC16C39 be read on the bench?

Use Bench Service Mode (AMT-BST / Flex / FoxFlash) / OBD / BDM with a 13.5V Bench PSU. Note: OBD reads partial map area on many EDC16 variants; Full Bench Service Mode reads complete 2 MB Flash for 100% switch coverage (EGR hysteresis, DPF, Hot-Start).