Audio Control Module (ACM)

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







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

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







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 readings, the breakout box must be connected and the ground terminal must be checked.







Audio control module (to antenna)
Before taking readings, the breakout box must be connected and the ground terminal must be checked.






Audio control module (cable between the audio module and the amplifier)
Before taking readings, the breakout box must be connected and the ground terminal must be checked.










Audio control module (cable between the audio module and the CD changer/navigation unit)
Before taking readings, the breakout box must be connected and the ground terminal must be checked.










External amplifier
Before taking readings, the breakout box must be connected and the ground terminal must be checked.







10 CD changer
Before taking readings, the breakout box must be connected and the ground terminal must be checked.