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.

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


The audio control module, green connector

A1 - A12:

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


Before taking any readings, see Connecting the breakout box and checking the ground terminal.

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

B1 - B12:

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


Before taking any readings, see Connecting the breakout box and checking the ground terminal.

Audio control module (to antenna)

C1 - C2:

Before taking any readings, see Connecting the breakout box and checking the ground terminal.

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

D1 - D6:

Before taking any readings, see Connecting the breakout box and checking the ground terminal.

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

E1 - H:

Before taking any readings, see Connecting the breakout box and checking the ground terminal.

External amplifier

F1 - F2:

Before taking any readings, see Connecting the breakout box and checking the ground terminal.

10 CD changer












Before taking any readings, see Connecting the breakout box and checking the ground terminal.

Connecting the breakout box and checking the ground terminal


NOTE: Before taking readings, the breakout box must be connected and the ground terminal must be checked.