Astra F
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Diagnosis
It is possible to read out stored trouble codes by pressing both DID keys simultaneously for 4 seconds.
If more than one trouble code is stored, they are displayed in sequence.
In this case, the first trouble code number flashes three times. After a pause, the second trouble code number is displayed in the same fashion.
After all trouble codes have been read out, the DID switches to the display test (actuation of all display symbols).
This test is performed for 4 seconds. After completion. the DID returns to normal display mode.
It is possible to interrupt readout of trouble codes and the display test by pressing both keys again briefly.
If a fault is determined during the self-test or during normal operation, the radio display switches off automatically.
The clock display remains functional.
If a fault is determined during normal operation and trouble codes are stored, these trouble codes should not be considered as a basis for diagnosis.
This is because a trouble code recognized during normal operation may have triggered other trouble codes and thus several trouble codes may be stored.
To be able to diagnose exactly which trouble code is the actual cause of the fault, the stored trouble codes must be deleted by switching off the radio unit.
Then switch the radio on again (radio display bus carries out a self-test).
The trouble codes that are stored after the self-test can be used for trouble-shooting.
If the DID or the radio has been removed for diagnosis, inspect all plug connections carefully.
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