Display Unit Inputs and Outputs for 20P Connector

Fig 1: Identifying Display Unit 20P Connector

Courtesy of AMERICAN HONDA MOTOR CO., INC.

NAVIGATION UNIT CONNECTOR REFERENCE

Terminal Number

Wire Color

Terminal Name

Description

Voltage (about)

Symptom

WHT

+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 (10A) in the driver's under-dash fuse/relay box.

PUR

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 (10A) in the driver's under-dash fuse/relay box.

GRN

DISP BUS(-f) (Display bus positive)

Data bus (+) GA-Net

0-5 V pulses average 2.5 V depends on bus traffic

If open: Navigation buttons do not work.
If short to ground: Navigation buttons do not work.

GRN

SCTY(+) (Security positive)

Security signal

0 V

If open: If security system set, it will not trip when screen is removed.
If short: If security system set, it will not trip when screen is removed.

WHT

RSIG (Red signal)

Red color signal

0-1 V

If open: Red color missing (see "RGB COLOR " diagnostic).
If short to ground: Red color missing (see "RGB COLOR " diagnostic).

RED

GSIG (Green signal)

Green color signal

0-1 V

If open: Green color missing (see "RGB COLOR " diagnostic).
If short to ground: Green color missing (see "RGB COLOR " diagnostic).

BLK

GND (Ground)

Ground for display unit

0 V

If open: No change to display.
If short to ground: No change to display.

LT BLU

ILL(+) (Illumination positive)

Parking light on signal from dash and console light

Lights on: battery voltage, Lights off: 0 V

If open: When brightness "Auto," then night mode for the display is inoperative when lights on.
If short to ground: Blows small light relay in under-hood fuse/relay box.

GRY⁽¹⁾

SH DISP BUS (Shield display bus)

Shield for display bus No. 5, 16 terminals

0 V

If open: No change to display.
If short to ground: No change to display.

RED

DISP BUS(-) (Display bus negative)

Date bus (-) GA-Net

0-5 V pulses average 2.5 V depends on bus traffic

If open: Navigation buttons do not work.
If short to ground: Hard buttons work OK.

BRN

SCTY(-) (Security negative)

Security signal

0 V

If open: If security system set, it will not trip when screen is removed.
If short: If security system set, it will not trip when screen is removed.

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.

YEL

BSIG (Blue signal)

Blue color signal

0-1 V

If open: Blue color missing (see "RGB COLOR " diagnostic).
If short to ground: Blue color missing (see "RGB COLOR " diagnostic).

BRN

C SIG (Composite signal)

Composite video (vertical/horizontal) synchronizing signal

0.3 V

If open: Picture rolls horizontally, colors still visible.
If short to ground: Picture rolls horizontally, colors still visible.

GRY⁽¹⁾

SH SIG (Shield signal)

Shield for No. 8, 9, 17, 18, 19 terminals

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.

Display unit 20P connector

Fig 2: Identifying Display Unit 20P Connector

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Navigation unit connectors

Fig 3: Identifying Navigation Unit Connectors

Courtesy of AMERICAN HONDA MOTOR CO., INC.