I want to erease data from ISM. The wiring is correct as advised using G Box everything is according to the instructions but receiving a message;
The testing device cannot communicate with ECU!
1. Check if the ignition switch is turned on.
2. Check if the main test cable is properly connected.
3. Check if the vehicle's battery has power.
I cannot understand this message as I am working on bench mode.
Please advise and help