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Home >> Volvo >> 2001 >> S40 >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Audio Equipment - Removal, Installation, & Inspection (644 Body) >> Entertainment Systems >> Signal specification, audio control module >> Connecting the breakout box and checking the ground terminal >> Audio control module (cable between the audio module and the CD changer/navigation unit)

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

Fig 1: Identifying Terminals Of Cable Between Audio Module And CD Changer/Navigation Unit
GLL104160Courtesy of VOLVO CARS OF NORTH AMERICA.

Before taking any readings, see Checking the ground terminals .

Control module terminal Breakout box terminal Signal type Ignition on Miscellaneous
E1 #16 Clock signal to audio unit Digital signal -
E2 #17 Signal ground, sound Ulow -
E3 #18 15 supply Ubat -
E4 #19 Data signal to audio unit Digital signal -
E5 #20 Busy signal to audio unit Digital signal -
E6 #21 Left audio channel Alternating current when there is sound to the loudspeaker -
E7 #22 Right audio channel Alternating current when there is sound to the loudspeaker -
E8 #23 Voice guide channel Alternating current when there is sound to the loudspeaker -
H   Screen ground, cable to audio unit Ulow -