Audio-Navigation Unit Inputs and Outputs

Fig 1: Identifying Audio-Navigation Unit Connector A (24P)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

AUDIO-NAVIGATION UNIT CONNECTOR A (24P)

Terminal Number	Wire Color	Terminal Name	Description	Voltage (about)	Symptom
1	WHT	ILL-	Ground for illumination light	With full dashlights 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.
12	BLK	MAIN GND (Ground)	Ground for audio-navigation unit	0 V	If open: No change to display. If short to ground: No change to display.
13	GRY	ILL+ (Illumination positive)	Parking light on signal from dash and console lights	Light on = battery voltage. Lights off = 0V	If open: When brightness = Auto, night mode for the display is inoperative when lights on. If short to ground: Blows fuse No. 29 (10 A) in under-dash fuse/relay box.
14	PUR	ACC (Accessory)	Power source for accessories	Battery voltage at ACCESSORY (I)	If open: Display picture goes out (display back light still on). If short to ground: Blows fuse No. 14 (7.5 A) in the under-dash fuse/relay box.
15	BLU	VSP (Vehicle speed pulse)	Vehicle speed pulse signal from PCM	Pulses 0-5 V: Average 2.5 V, when moving	If open: No vehicle speed pulses. Diagnostic screen Car Status, VSP= 0. If short to ground: No vehicle speed pulses. Diagnostic screen Car Status, VSP= 0.
24	PNK	+ B BACK UP (+ B power source)	Continuous power source	Battery voltage	If open: Screen completely off (no backlight visible). If short to ground: Blows fuse No. 1 (15 A) in the under-dash fuse/relay box.

Fig 1: Identifying Audio-Navigation Unit Connector C (7P)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

AUDIO-NAVIGATION UNIT CONNECTOR C (7P)

Terminal Number

Wire Color

Terminal Name

Description

Voltage (about)

Symptom

GRN

VCC (VCC supply)

Power source for rearview camera

If open: No rearview camera image.
If short to ground: When put into reverse, the navigation screen goes black (backlight still operative)

WHT

GND (RC) (Ground)

Ground for rearview camera

0 V

If open: No change to rearview camera image.
If short to ground: No change to rearview camera image.

RED

CAMERA GND (Ground camera)

Ground for camera signal

0 V

If short to ground: No change to rearview camera image.
If open: No change to rearview camera image.

BLK

CAMERA V (Video camera)

Video signal for rearview camera

0.3 V AC

If open: No change to rearview camera image.
If short to ground: No change to rearview camera image.

GRY+⁽¹⁾

CAMERA SH (Shield camera)

Shield for terminal No. 1, No. 2, No. 4, No. 5

0 V

If open: No change to rearview camera image.
If short to ground: No change to rearview camera image.

BRN

CAMERA ADPT (Adaptive camera)

Control signal for rearview camera

0 V

If open: No change to rearview camera image.
If short to ground: No change to rearview camera image.

⁽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 shown on the circuit diagram.

Fig 1: Identifying Audio-Navigation Unit Connector D (20P)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Terminal Number

Wire Color

Terminal Name

Description

Voltage (about)

Symptom

PNK

+ B BACK UP

Continuous power source

Battery voltage

If open: Display picture goes out (display back light still on). NOTE: System will reboot to enter code screen.
If short to ground: Blows fuse No. 1 (15 A) in the under-dash fuse/relay box.

GRN

BACK LT

Reverse signal of select lever from Multiplex integrated control unit

In reverse, battery voltage: Otherwise 0 V

If open: Navigation never sees the reverse signal and the vehicle icon move forward when driving in reverse. Diagnostic screen Car Status, Back = 0.
If short to ground: Blows fuse No. 5 (10 A) in the under-dash fuse/relay box.

BRN

AC-CLK

Time set sync signal

0-battery voltage pulses

If open: voice control of HVAC does not work.
If short to ground: voice control of HVAC does not work.

YEL

AC-SO

A/C output signal

0-battery voltage pulses

If open: voice control of HVAC does not work.
If short to ground: voice control of HVAC does not work.

WHT

F-CAN H

Communication signal

If open: System Links F-CAN icon shown as red.
If short to ground: System Links F-CAN icon shown as red.

RED

F-CAN L

Communication signal

If open: System Links F-CAN icon shown as red.
If short to ground: System Links F-CAN icon shown as red.

BLK

GND

Ground for audio-navigation unit

0 V

If open: No effect on system.
If short to ground: No affect on system.

WHT

AC-SI

A/C input signal

0-battery voltage pulses

If open: voice control of HVAC does not work.
If short to ground: Voice control of HVAC does not work.

GRV

MIC SH

Shield for terminal No. 7, No. 8

0 V

If open: No effect on voice recognition.
If short to ground: No effect on voice recognition.

GRN

MIC SIG-

Ground for microphone signal

0 V

If open: No microphone signal shown in diagnostics: Navi System Link and Functional Set up Mic Level.
If short to ground: No effect on voice recognition.

RED

MIC SIG +

Microphone output signal positive

4-5 V (with navigation TALK button pressed)

If open: No microphone signal shown in diagnostic screens: Navi System Link and Functional Setup Mic Level.
If short to ground: No microphone signal shown in diagnostic screens: Navi System Link and Functional Setup Mic Level.

⁽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 shown on the circuit diagram.

Fig 1: Identifying Audio-Navigation Unit Connector H (2P)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

AUDIO-NAVIGATION UNIT CONNECTOR H (2P)

Terminal Number	Wire Color	Terminal Name	Description	Voltage (about)	Symptom
1	--	SIG (GPS)	GPS signal (5 V in, GPS signal out)	5V	If open: GPS icon on screen is white, system links screen ANT shows NG. If short to ground: GPS icon on screen is white, system links screen ANT shows NG.
2	--	SH (GPS)	Shield for terminal No. 1	0 V	If open: GPS icon on screen is white, system links screen ANT shows NG. If short to ground: No effect on system.

Fig 1: Identifying Audio-Navigation Unit Connector J (2P)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

AUDIO-NAVIGATION UNIT CONNECTOR J (2P)

Terminal Number	Wire Color	Terminal Name	Description	Voltage (about)	Symptom
1	--	TMC RF IN	RDS-TMC signal (5V in, RDS-TMC signal out)	--	If open: Poor traffic message channel reception or interference. If short to body ground: Same as open.
2	--	TMC RF SH	Ground for RDS-TMC signal	--	If open: Poor traffic message channel reception or interference. If short to body ground: No effect on system.