939004898 - E3570 BUILT-IN RADIO PHONE - OPERATIONAL DESCRIPTION (Bluetooth)

FUNCTIONAL DESCRIPTION

The Bluetooth control unit M162 is supplied directly (pin 16 of connector A) from the battery via the line for fuse F39 of the junction unit under the dashboard B2.The Bluetooth control unit M162 receives an ignition-operated supply (INT) (pin 32 of connector A) via the line for fuse F49 of the junction unit under the dashboard B2.Pin 15 of connector A of M162 is earthed.The CAN line through which the Bluetooth control unit M162 is connected to the radio P20, the controls on the steering wheel - via the clock spring D47 - the Body Computer M1 and the other system nodes, reaches pins 14 and 30 of connector A.The Bluetooth control unit M162 is connected directly to radio P20 - connector D - from pins 7, 23 and 25 of connector A, sending audio+. audio - and MUTE signals respectively, thus using the radio speakers for voice messages and hands-free communication.In the version with Media Player USB interface, the Bluetooth control unit M162 is connected to radio P20 - connector C - from pins 5, 22 and 21 of connector A with AUX left, AUX right and AUX earth signals.The Media Player USB socket P143 is connected to the Bluetooth control unit M162, to pins 3, 4, 19, 20 and 31 respectively, with signals: signal D+, reference earth, signal D-, 5V power supply and shielding.The hands-free microphone located in the courtesy light G10 is connected to pins 8 and 24 of connector A of M162.