Navigation Unit Inputs and Outputs for Connector A (20P)

Fig 1: Identifying Navigation Unit Connector A (20P) Terminals

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Navigation Unit Connector A (20P)

NAVIGATION UNIT CONNECTOR A (20P) TERMINAL REFERENCE

Terminal Number

Wire Color

Terminal Name

Description

Voltage (about)

Symptom

WHT

RSIG (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).

RED

GSIG (Green signal)

Green color signal

0.2 VAC 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).

BRN⁽¹⁾

SHSIG (Shield signal)

Shield for No. 1, 2, 11, 12, 13 terminals

0 V

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

YEL

A/C-SI (Air conditioner serial in)

Communication signal for climate control unit

If open: HVAC cannot be controlled by the navigation system. If short to ground: HVAC cannot be controlled by the navigation system.

YEL

ILL (+) (Illumination positive)

Parking light on signal

Lights on: battery voltage, Lights off: 0 V

If open: When brightness=Auto, night mode for the display is inoperative when lights on.
If short to ground: daytime mode regardless of the condition of a light switch.

BRN⁽¹⁾

GA NET BUS SH (GA-NET bus shield)

Shield for display bus No. 10,20 terminals

0 V

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

GRN

GA NET BUS + (GA-NET bus positive)

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: Navigation buttons do not work.

⁽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.

Navigation Unit Connector A (20P)

NAVIGATION UNIT CONNECTOR A (20P) TERMINAL REFERENCE

Terminal Number

Wire Color

Terminal Name

Description

Voltage (about)

Symptom

YEL

B SIG (Blue signal)

Blue color signal

0.2 VAC average in RGB color diagnostic mode

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

GRN

C SIG (Composite signal)

Composite video (vertical/horizontal) Synchronizing signal

0.2 V AC average in RGB color diagnostic mode

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

BLK

GND SIG (Ground signal)

Ground for color signal

0 V

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

RED

A/C-SO (Air conditioner serial out)

Communication signal for climate control unit

If open: HVAC cannot be controlled by the navigation system.
If short to ground: HVAC cannot be controlled by the navigation system.

BLU

A/C-CLK (Air conditioner clock)

Check signal for climate control unit

If open: HVAC cannot be controlled by the navigation system.
If short to ground: HVAC cannot be controlled by the navigation system.

WHT

JOG BUS (Jog bus)

Interface dial operation signal

0-5 V pulses

If open: You cannot operate navigation system
If short to ground: You cannot operate navigation system.

BRN⁽¹⁾

JOG SH (Jog shield)

Shield for interface dial signal

RED

DISP BUS (-) (Display bus negative)

Date bus (-) GA-Net

0-5 V pulses 2.5 V average (depends on Bus traffic)

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

⁽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.