Testing BMW

With AutoHex Diagnostic scan tool (Hexdiag), you have to choose a Model then choose a vehicle type as for example E39.
The left menu will show two options:
1. Quick-test (complete car scan / test) (HexDiag) BMW software detects all BMW ECUs (electronic control units) installed in car and reads all diagnostic fault codes. Status symbols:

• (V) For (NO fault codes).
• (X) For (with fault codes).
• (!) The system cannot be found in current car.

(Quick Erase) button allows you to erase fault codes of all the faulted systems. After using (Quick Erase) function, the faulted systems on the left menu will move to the right menu, if the system still has fault code its status will be (NOT OK) otherwise it becomes (OK).
2. Control Units
When you click on it, you will see three categories:

• Drive.
• Chassis.
• Body.

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