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CAN Diagnostic Emulator

UDS & OBD-II simulator · Educational only — no real vehicle connection

ECU & Engine Status

Ignition: OFF
Engine: OFF

Command Console

Try AT+PWRON → AT+ENGINEON → AT+RDI=0123.

Vehicle Dashboard

Command Reference

AT+PWRON

Powers on the ECU.

0x10 01 → 0x50 01

AT+ENGINEON

Starts the engine (requires ECU on).

0x10 03 → 0x50 03

AT+RDI=0123

Read speed and RPM.

0x22 0123 → 0x62 0123 [Speed] [RPM]

AT+RDI=0456

Read brake and gas pedal.

0x22 0456 → 0x62 0456 [Brake] [Gas]

AT+RDI=0789

Read ignition and engine state.

0x22 0789 → 0x62 0789 [Ign] [Eng]

Error responses

ECU unavailable: 0x7F 22 11

Engine unavailable: 0x7F 22 33