Siemens SIMTEC81.1 — supported tools

← ECU catalogue

Siemens SIMTEC81.1 engine ECU supported by DFOX via Bench, OBD. Reading and writing for listed applications from: Opel. Variant, memory and operation details are specified in the support records.

Last changed: 2026-10-31 · Card revision 1

Compatibility depends on ECU HW/SW, protocol and active licence. A tool missing from this list does not imply lack of support.

Tool

Connection

Operations

Scope and notes

DFOX

Bench

Read (type unspecified)
Write

Opel Signum 2.2l 16V; Opel Vectra 2.2l 16V; Opel Zafira 2.2l 16V; Simtec 81.1

Operations confirmed in the DFOX list for the specified application and variant. Updates published since October 2025 require DFOX V2 software.

DFOX

OBD

Read (type unspecified)
Write

Opel Signum 2.2l 16V; Opel Vectra 2.2l 16V; Opel Zafira 2.2l 16V; Simtec 81.1

Operations confirmed in the DFOX list for the specified application and variant. Updates published since October 2025 require DFOX V2 software.

DFOX

Bench

Read (type unspecified)
Write

Opel; Simtec 81.1; MCU C167 29F400BT; CAN

Operations confirmed in the DFOX list for the specified application and variant. Memory designation in the list: EEPROM emulated. Updates published since October 2025 require DFOX V2 software.

DFOX

OBD

Read (type unspecified)
Write

Opel; Simtec 81.1; MCU C167 29F400BT; CAN

Operations confirmed in the DFOX list for the specified application and variant. Memory designation in the list: EEPROM emulated. Updates published since October 2025 require DFOX V2 software.

Pinout Bench

No Bench pinout has been added.

Pinout Boot

No Boot pinout has been added.

Update history

Revision 1 · 2026-10-31