Fault in a test module:

If a fault occurs when processing a service function, the following causes are possible:

1

Faults in the system.

First, correct the faults.

Note:

Also watch out for error messages while the service function is running.

2

The instructions have not been followed precisely.

Especially for learning procedures, it is required that the instructions regarding the vehicle condition (for example ignition off for 10 seconds, start engine) be followed precisely.