Preparing Vehicle Diagnostics - Hella Gutmann mega macs X Guide De Démarrage Rapide

Hella Gutmann

6.1.1. Preparing Vehicle Diagnostics

NOTICE
The selection of the correct vehicle and sufficient vehicle electrical system voltage (>12 V) are two basic pre-
conditions for trouble-free vehicle diagnostics. The diagnostic device provides assistance to simplify the se-
lection, e.g. indicating the installation position of the diagnostic port, vehicle identification through VIN or in-
dication of the battery voltage.
Several manufacturers use security gateway modules to protect the vehicle communication against unau-
thorized 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<:
• Trouble code
• OBD diagnostics
• Parameter
• Actuators
• Basic setting
• Coding
• Test function
• Service reset
Proceed as follows to prepare vehicle diagnostics:
1. 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.
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