Quiescent current consumption is in the range between 200 mA and 500 mA - AF54.10-P-6400-02T

Possible cause of fault 1: 

up to 5/03:

It is possible that the audio gateway control module (N93/1) does not "go to sleep".

This fault is eliminated as of software status 20/02.

Measures: 

Update audio gateway control module (N93/1) to newest software status with STAR DIAGNOSIS.

Possible cause of fault 2: 

With mirror taximeter (code 337):

This produces an increased quiescent current consumption.

Measures: 

Switch off taximeter.