Loudspeaker Function

At the request of the UEC, REC, PAS, PEPS, IPC, DIS, SDM, SLM or TPMS control units, the SCCM triggers an acoustic signal from the integral loudspeaker. This signal is specific for each function. For example, the REC control unit may send a message to the SCCM indicating the frequency at which the turn signal tone should be output (normal flash frequency or faster flash frequency if turn signal is faulty). Other functions involving the sending of a sound output request to the SCCM control unit include parking light activated, door, boot or tailgate open, Park Assist, adaptive cruise control, windscreen wiper switch off and deactivate transport mode.