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Navigation display connector A (20P)

Fig 1: Identifying Navigation Display Connector A (20P)
G05527458Courtesy of AMERICAN HONDA MOTOR CO., INC.
NAVIGATION DISPLAY CONNECTOR A (20P)

Terminal Number Wire Color Terminal Name Description Voltage (about) Symptom
A1 WHT/RED +B (+B power source) Continuous power source Battery voltage If open: Screen completely off (no backlight visible).
If short to ground: Blows fuse No. 7 (10 A) in the driver's under-dash fuse/relay box.
A2 YEL/RED ACC (Accessory) Power source for accessory Battery voltage at ACC (I) If open: Display and buttons do not work.
If short to ground: Blows fuse No. 32 (10 A) in the driver's under-dash fuse/relay box.
A3 BLU GA-NET AUDIO BUS1 (+) Data bus (+) GA-Net 0-5 V pulses average 2.5 V depends on bus traffic If open: Navigation buttons and touch screen do not work.
If short to ground: Navigation buttons, touch screen and XM radio do not work.
A4 GRY(1) GA-NET AUDIO BUS1 SH Shield for terminals No. 3, 13 0 V If open: No change to display.
If short to ground: No change to display.
A5 LT BLU GA-NET DISP BUS (+) Data bus (+) GA-Net 0-5 V pulses average 2.5 V depends on bus traffic If open: Navigation buttons and touch screen do not work.
If short to ground: Navigation buttons, touch screen and XM radio do not work.
A6 GRN SCTY4 (security 4) Security signal to rear screen 0 V If open: The security system will set, and will not trip when screen is removed.
If short to ground: The security system will set, and will not trip when screen is removed.
A8 WHT R SIG (Red signal) Red color signal 0.2 V AC average in RGB color diagnostic mode If open: Red color missing (see RGB Color diagnostic).
If short to ground: Red color missing (see RGB Color diagnostic).
A9 RED G SIG (Green signal) Green color signal 0.2 V AC average in RGB color diagnostic mode If open: Green color missing (see RGB Color diagnostic).
If short to ground: Green color missing (see RGB Color diagnostic).
A10 BLK GND (Ground) Ground for display unit 0 V If open: No change to display.
If short to round: No change to display.
A11 RED/BLK ILL (+) (Illumination positive) Parking light on signal from dash and console lights Battery voltage if lights on: otherwise 0 V If open: When brightness = Auto, night mode for the display is inoperative when lights on.
If short to ground: Blows fuse No. 7 (7.5 A) in the passenger's under-dash fuse/relay box.
A12 RED ILL (-) Ground for illumination light With full dash lights brightness, 0 V If open: When brightness = Auto, night mode for the display is inoperative when lights on.
If short to ground: No change to display.
A13 PNK GA-NET AUDIO BUS1 (-) Data bus (-) GA-Net 0-5 V pulses average 2.5 V depends on bus traffic If open: Navigation buttons and touch screen do not work.
If short to ground: Hard and touch buttons work OK.
A14 GRY(1) GA-NET DISP BUS SH Shield for display bus terminals No. 5, 15 0 V If open: No change to display.
If short to ground: No change to display.
A15 PUR GA-NET DISP BUS- Data bus (-) GA-Net 0-5 V pulses average 2.5 V depends on bus traffic If open: Navigation buttons and touch screen do not work.
If short to ground: Hard and touch buttons work OK.
A16 GRN/YEL SCTY5 (security 5) Security signal from audio disc changer 0 V If open: The security system will set, and will not trip when screen is removed.
If short to ground: The security system will set, and will not trip when screen is removed.
A17 BLU GND SIG (Ground signal) Ground for color signal 0 V If open: No change to display.
If short to ground: No change to display.
A18 YEL B SIG (Blue signal) Blue color signal 0-1 V AC If open: Blue color missing (see RGB Color diagnostic).
If short to ground: Blue color missing (see RGB Color diagnostic).
A19 BRN C SIG (Composite signal) Composite video (vertical/horizontal) synchronizing signal 0.3 V AC If open: Picture rolls horizontally, colors still visible.
If short to ground: Picture rolls horizontally, colors still visible.
A20 GRY(1) SIG SH (Shield signal) Shield for terminals No. 8, 9, 17, 18, 19 0 V If open: No change to display.
If short to ground: No change to display.
(1) The shielded wires have a heat-shrunk 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.
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