How to Troubleshoot the Audio System
NOTE: Refer to How to Troubleshoot the Navigation System for information about the audio-navigation unit.

How to Recognize Audio unit and Audio-Navigation Unit (With Display Audio)
There are two kinds of 7-inch display audio units according to a vehicle model. these units exist as an audio unit (without navigation) and an audio-navigation unit (with navigation), and are look like a same, but the audio-navigation unit displays a Honda Globe screen after displaying a Honda logo screen every time when you turn the vehicle to the ACCESSORY mode. If the unit does not displayed any screen according to failure of the unit or the vehicle, remove the unit, and check for connector G (24P) terminal No. 14. If the terminal is using a GRN wire (VSP line), the unit can be recognized as an audio-navigation unit.
Anti-Theft Feature
The audio-navigation unit or the audio unit has an anti-theft protection circuit. When one of the following occurs, the unit enters the anti-theft mode.
Disconnecting the 12 volt battery.
Disconnecting audio-navigation unit connector A (24P) or audio unit connector A (24P).
Removing the No. A1-6 (120 A) fuse or the No. A29 (10 A) fuse*1, the No. A2-2 (60 A) fuse*2 from the under-hood fuse/relay box, or the No. B25 (10 A) fuse*2 from the under-dash fuse/relay box.
*1: With navigation (KX) or with display audio
*2: With normal audio

After service, reconnect power to the audio-navigation unit or the audio unit, and turn the vehicle to the ON mode. There are two ways to exit the anti-theft mode:
Press and hold the POWER (enu_4460341_1.0) button for at least 2 seconds. The audio-navigation unit or the audio unit automatically exits the anti-theft mode. If the audio-navigation unit or the audio unit does not exit anti-theft mode, like in cases where a known-good unit was substituted for testing, enter the anti-theft code.
Enter the 5-digit anti-theft code.

There are no anti-theft cards included with the vehicle. If you need the code, you can get the code from the Interactive Network (iN) using the audio-navigation unit or the audio unit serial number. The unit serial number can easily be obtained without removing the audio-navigation unit or the audio unit, do the following:

After you retrieve the serial number, go to the iN, select Service, Vehicle Information, Anti-Theft Code Inquiry, and fill out the form.

When the audio-navigation unit or the audio unit is installed in another vehicle (same Year/Model/Trim), you have to enter the 5-digit anti-theft security code. After that, you can release the anti-theft mode by pressing and holding the VOLUME/POWER knob or the POWER button.


Global Positioning System (GPS) Limitations (With Display Audio)
The GPS signal is used for the HondaLink Assist function to communicate the customer's vehicle position to the emergency services. The GPS cannot detect the vehicle's position or elevation during the following instances:
For the first 5 to 10 minutes after reconnecting the 12 volt battery (this process can take as long as 45 minutes).
When the satellite signals are blocked by tall buildings, mountains, tunnels, large trees, inside parking structures or large trucks.
When the GPS antenna is blocked by metallic window tinting or by an object placed above it in the vehicle. The GPS antenna requires a clear unobstructed view of the sky.
When there is no satellite signal output (signal output is sometimes stopped for satellite servicing).
When the satellite signals are blocked by the operation of some electronic aftermarket accessories including, but not limited to non-OEM in-dash entertainment units (amp, CD players/changers, radar detectors, theft recovery systems, etc.) and cell phones placed near the navigation system.

The accuracy of the GPS is reduced during these instances:
Metallic window tinting above the GPS antenna.
When only three or fewer satellite signals are received (Four satellite signals are required for accurate positioning).
When driving near high tension power lines.
When the satellite signals are blocked by the operation of some electronic aftermarket accessories including, but not limited to non-OEM in-dash entertainment units (amp, CD players/changers, radar detectors, theft recovery systems, etc.) and cell phones placed near the navigation system.
When the satellite control centers are experiencing problems.

LCD Unit Limitations (With Display Audio)
The LCD display built into the audio unit is touch sensitive. Touch the display directly to select items on the screen.
Heavy gloves, fingernails or pens cannot be used on the touch panel.
In cold temperatures, the display may stay dark for the first minute until it warms up.
When the display is too hot because of direct summer sunlight, it remains dark until the temperature drops (you may see an error message displayed stating this fact).
Fingerprints on the screen may be noticeable. Clean the screen with a soft, damp cloth. You may use a mild cleaner intended for eye glasses or computer screens. To avoid scratching the panel, do not rub too hard or use abrasive cleaners or shop towels.

SD Card Module Service Precautions (With Display Audio)
The audio unit and the SD card module cannot be substituted separately for testing purposes. You can substitute a combined audio unit and SD card module with a known-good combined audio unit and SD card module. When the audio unit and the SD card module are connected to a vehicle, and powered up for the first time, the audio unit and the SD card module go through a mating process where the SD card module writes the audio unit's serial number to its memory. The audio unit and the SD card module are available separately.

When you get a replacement audio unit, it does not come with an SD card module, but the unit is able to mate one time to an SD card module. When you connect the audio unit to the SD card module and power it up for the first time, the two components are mated. Once the audio unit is mated, it does not accept an SD card module that is already mated to another audio unit. It does accept a new SD card module.

The SD card module is removable from the audio unit. If the audio unit is replaced, install the original SD card module into the new audio unit. When you transfer the SD card module, the system data, the application program, and all the customer's settings are transferred.

The SD card module is able to mate more than once, allowing you to transfer the SD card module with the customer's information to a new audio unit. The SD card module must mate to a new audio unit. It cannot mate to an audio unit that has been mated to another SD card module.

Audio Unit
SD Card Module
Result
New
New
OK
Original
New
OK
New
Original
OK
Original
An audio unit mated to a different SD card module
NG
An audio unit mated to a different SD card module
Original
NG


Lever-Locked Connector
Disconnecting
To disconnect the connector, pull the lever (A) while pushing the lock tab (B) down, then pull the connector (C).

Connecting
To connect the connector, push the connector into the connector sleeve (A). As the connector is pressed in, the lever (B) moves to the locked position.


How to Check Error History (Audio DTCs)
NOTE: The audio DTCs cannot be retrieved with the HDS.

The Error History feature is to record intermittent audio issues that occur while the customer is using the system. Sometimes the customer complaint cannot be duplicated. The error history may record the information needed to diagnose the problem. To check the error history:

1.
Turn the vehicle to the ON mode.

2.
At any screen except the HOME screen, press and hold the EJECT button, the POWER (enu_4460341_1.0) button, and the HOME button until the Select Diagnosis Items menu screen is displayed.
Displaying Select Diagnosis Items Menu Screen

3.
When the Select Diagnosis Items menu appears, select the Self-Diagnosis Mode.
4.
When the audio unit has hard error codes, the Error History icon (A) appears yellow. When no hard error codes are stored, the icon appears gray. To view the errors with their audio DTC, select the Error History icon.
5.
Select the Hard Error icon in the Error History menu.

NOTE: The Soft Error feature is for factory use only.
6.
The Hard Error screen displays the following information by selecting the Date_Time icon (A):
The date and time when the error occurred.
The audio DTC for the error.
A brief description of the audio DTC.

NOTE: The Save feature is for factory use only.

7.
Use the audio DTC Troubleshooting table to troubleshoot the error. Select the Return icon to exit the Error History main menu.
How to Clear Error History
NOTE: The audio DTCs cannot be deleted with the HDS.

8.
Select the Clear icon in the Hard Error. The confirmation screen appears.

9.
Select the Yes icon. All Hard Error histories are cleared. The system returns to the Error History menu automatically.