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Home >> Acura >> 2011 >> MDX >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> HANDSFREELINK System >> System Description >> HandsFreeLink Control Unit Inputs and Outputs >> HandsFreeLink Control Unit 28p Connector (with navigation)
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HandsFreeLink Control Unit 28p Connector (with navigation)

Fig 1: Identifying Handsfreelink Control Unit 28P Connector Terminals (With Navigation)
G08054290Courtesy of AMERICAN HONDA MOTOR CO., INC.
HANDSFREELINK CONTROL UNIT 28P CONNECTOR (WITH NAVIGATION)

Cavity Wire Color Terminal Name Connect to
1 BLK GND Body ground to G506
2 BLU HFL REMOTE SW HFL-navigation voice control switch
3 LT GRN HFL MUTE HFL-navigation microphone
4 GRN GA-NET BUS B+ Audio-Navigation unit, navigation display unit
5 RED GA-NET BUS B- Audio-Navigation unit, navigation display unit
6 BLK HFL COMM4 AcuraLink control unit (XM receiver)(2)
Audio-Navigation unit(3)
7 GRN HFL COMM3 AcuraLink control unit (XM receiver)(2)
Audio-Navigation unit(3)
8 BRN(1) HFL COMM SH Shield for terminals No. 6, No. 7, No. 20, and No. 21
9 RED AUDIO R+ Audio-Navigation unit, AcuraLink control unit (XM receiver)(2), XM receiver(3)
10 BLK AUDIO L+ Audio-Navigation unit, AcuraLink control unit (XM receiver)(2), XM receiver(3)
11 LT BLU LINE OUT+ Audio-Navigation unit
12 GRY(1) MIC IN SH Shield for terminals No. 13 and No. 14
13 PNK MIC IN + HFL-navigation microphone
14 BLU MIC IN- HFL-navigation microphone
15 WHT + B No. 5 (10 A) fuse in the under-dash fuse/relay box
16 PUR ACC No. 32 (10 A) fuse in the under-dash fuse/relay box
18 LT GRN B-CAN B-CAN communication bus line
19 BRN(1) GA-NET BUS B SH Shield for terminals No. 4 and No. 5
20 RED HFL COMM1 AcuraLink control unit (XM receiver)(2)
Audio-Navigation unit(3)
21 WHT HFL COMM2 AcuraLink control unit (XM receiver)(2)
Audio-Navigation unit(3)
22 GRY(1) AUDIO SH Shield for terminals No. 9, No. 10, No. 23, and No. 24
23 WHT AUDIO R- Audio-Navigation unit, AcuraLink control unit (XM receiver)(2), XM receiver(3)
24 GRN AUDIO L- Audio-Navigation unit, AcuraLink control unit (XM receiver)(2), XM receiver(3)
25 PUR LINE OUT- Audio-Navigation unit
26 BRN(1) LINE OUT SH Shield for terminals No. 11 and No. 25
27 PUR HFL MIC OUT+ Audio-Navigation unit
28 LT BLU HFL MIC OUT- Audio-Navigation unit
(1) The shielded wires have a heat-shrink tube insulating the outside of the wire. The color of the insulating tube, typically black or dark gray, may not match the color of the wire listed on the schematic.
(2) With AcuraLink
(3) Without AcuraLink
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