Pinout Values and Diagnostic Parameters

Signal Specification, Audio Control Module

Connecting the breakout box and checking the ground terminal

CAUTION: Before taking readings, the breakout box must be connected and the ground terminal must be checked. See Checking the ground terminals.

Definitions
DC voltage in volts (V)
Ulow = Voltage near 0 V
Ubat = Battery voltage

The audio control module, green connector












NOTE: The connectors on the adapter cable must be correctly colored to correspond to the signal table.

Before taking any readings, see (STOM).

Audio control module (AUM)/External amplifier to loudspeakers, gray connector












NOTE: The connectors on the adapter cable must be correctly colored to correspond to the signal table.

Before taking any readings, see (STOM).

Audio control module (to antenna)







Before taking any readings, see (STOM).

Audio control module (cable between the audio module and the amplifier)












Before taking any readings, see (STOM).

Audio control module (cable between the audio module and the CD changer/navigation unit)












Before taking any readings, see (STOM).

External amplifier







Before taking any readings, see (STOM).

10 CD changer












Before taking any readings, see (STOM).