Chip-Tools

ITDEENBGES

ECU identification, DTC read/clear and Live Data on Ford/Mazda

The three basic diagnostic functions: reading the ECU identification (hardware variant, software variant, calibration level), reading and clearing fault codes, and watching live parameters. The identification is essential when you have to replace a damaged ECU with a compatible used one.

Procedure

1. Connect the AVDI, start the software and select the correct vehicle context, then pick the control unit you want to interrogate from the list.
2. Open the identification function ("ECU identification"): the software shows the module's hardware variant, software variant and calibration level.
3. Note or save this data BEFORE ordering a replacement part: when you need a used ECU to replace the damaged original, the hardware, software and calibration level have to match, otherwise the module will not work properly on the vehicle.
4. Move to the "Read / Clear DTC" function to read the selected ECU's fault memory: note the codes and their status before you clear anything.
5. Repair the physical fault, then clear the DTCs. Read again straight afterwards: codes that come back immediately are live faults, not history.
6. Use "Live Data" to view the ECU's measured values in real time and check how the sensors/actuators behave with the engine running or the ignition on, so you can confirm the repair has done its job.
7. For a full picture of the vehicle, repeat the DTC read across all the modules with "Scan all" rather than going ECU by ECU.

Reference screenshots