Preparing Vehicle Diagnostics - Hella Gutmann mega macs X Bedienungsanleitung

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Here the device indicates the real-time data or conditions of the components from the ECU graphically and alphanu-

• >Actuators<

Here you can activate or deactivate actuators with the help of the ECU.

• >Basic settings<

Here you can reset components to their basic setting.

Here you can code components in the ECU.

• >Test function<

Here you can perform special tests/self-tests.

• >Service resets<

Here you can reset the service interval. Do the service reset either manually or with the diagnostic device.

9.4.1. Preparing Vehicle Diagnostics

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

• Basic setting

• Test function

• Service reset

Proceed as follows to prepare vehicle diagnostics:

Working with the mega macs X | 9.

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