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Defect Code 21



*D* Defect code memory: Undervoltage

Note: This information does not refer to a defect in the area of the central locking system but rather it indicates that the voltage in the vehicle drops to below 8v.

If this message occurs several times, it is displayed on the screen by the following overlay:

"Undervoltage occurred x-times"

The cause should be examined in this case.