Preparing Vehicle Diagnostics
NOTICE
The selection of the correct vehicle and sufficient vehicle electrical system voltage (>12 V) are two basic preconditions for trouble-free vehicle diagnostics. The diagnostic device provides assistance to simplify the selection, e.g. indicating the installation position of the diagnostic port, vehicle identification through VIN or indication of the battery voltage.
Several manufacturers use security gateway modules to protect the vehicle communication against unauthorized access. This means that unrestricted vehicle communication between the diagnostic device and the vehicle is possible only through prior activation. To select and diagnose a vehicle with a security system in the usual manner and without restrictions, follow the steps in the section Cyber Security Management of the mega macs X user manual.
The App launcher offers the following ECU functions under >Diagnostics<:
- Automatic diagnostics
- Trouble code
- OBD diagnostics
- Parameter
- Actuators
- Basic setting
- Coding
- Test function
- Service reset
Proceed as follows to prepare vehicle diagnostics:
- Click to >Vehicle selection< in the App launcher and select the requested vehicle.
CAUTION
Rolling of vehicle
Risk of injury or material damages
Proceed as follows before startup:
1. Apply the parking brake.
2. No gear is engaged.
3. Regard the window with information and instructions.
NOTICE
Danger of short circuit and voltage peaks when connecting the OBD plug
Danger of destruction of automotive electronics
Switch off ignition before connecting the OBD plug to the vehicle.
- Plug in the OBD plug in the vehicle's diagnostic connector.
- Select >OBD diagnostics< in the App launcher.
- Now you can select the type of diagnostics.