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Discussion Starter · #1 ·
Hey gang I recently swapped the head unit in my 2015 civic sedan for a 2016 crv head unit. I did this to install Apple CarPlay in my car a feature that I've wanted for some time now. I got that all working after following a thread on this site and it is great. Anyways after doing so I noticed 2 things:

A) Every time I turn the car on I am greeted with a diagnostic window that won't go away unless I by pass it via the secret menu (power, home, eject) and then return takes me to the Home Screen. I cannot go through the honda website to obtain an unlock code as the system I am trying to unlock did not come with my car and does not match my vin. I also tried the bypass method of holding menu for a while and got nothing. I was hoping someone on this site would be able to help me navigate this issue (no pun intended).

B) Since installing the new unit any audio that is played through it is barely audible at the max volume (40) and almost silent below it. I am sure it has something to do with the new unit but have no clue what. I check the fuse for the amp and all was fine.

If anyone can help would be much appreciated.

Thanks!
 

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Discussion Starter · #2 ·
Hey gang I recently swapped the head unit in my 2015 civic sedan for a 2016 crv head unit. I did this to install Apple CarPlay in my car a feature that I've wanted for some time now. I got that all working after following a thread on this site and it is great. Anyways after doing so I noticed 2 things:

A) Every time I turn the car on I am greeted with a diagnostic window that won't go away unless I by pass it via the secret menu (power, home, eject) and then return takes me to the Home Screen. I cannot go through the honda website to obtain an unlock code as the system I am trying to unlock did not come with my car and does not match my vin. I also tried the bypass method of holding menu for a while and got nothing. I was hoping someone on this site would be able to help me navigate this issue (no pun intended).

B) Since installing the new unit any audio that is played through it is barely audible at the max volume (40) and almost silent below it. I am sure it has something to do with the new unit but have no clue what. I check the fuse for the amp and all was fine.

If anyone can help would be much appreciated.

Thanks!
I should also add that the head unit was purchased from replacementpartsradios on Ebay which have a great seller rating and I highly doubt it is an issue in the hardware although I could be totally wrong. As a result the head units are brand new and are not conditioned to be in any car yet (says the seller).
 

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You'll need to get the vin from the vehicle the headunit was in and get the code from honda. They may be unwilling to part with that information without proof of ownership.

 

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This job aid is dated 2010 but I believe nothing has changed regarding audio unit anti thief codes...
Important info in RED TEXT

Can I retrieve the anti-theft code using the VIN?
You CANNOT retrieve an anti-theft code using the VIN.


© 2010 American Honda Motor Co., Inc. – All Rights Reserved AJA 43392 (1003) 1 of 4

CUSTOMER INFORMATION: The information in this bulletin is intended for use only by skilled technicians who have the proper tools, equipment,
and training to correctly and safely maintain your vehicle. These procedures should not be attempted by “do-it-yourselfers,” and you should not assume
this bulletin applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an
authorized Honda automobile dealer.


Applies To: 2002 and Later Models With Anti-Theft – ALL March 11, 2010
Radio/Navigation Anti-Theft Code
How to Get the Anti-Theft Codes From the Interactive Network (iN)
You can retrieve the anti-theft code for an audio or navigation unit from the iN if you have the unit's serial number.
Starting with model year 2002, you can get the serial number without removing the audio or navigation unit. To get
the serial number, do this:
For all audio units except 2003-07 Accord with navigation:
1. Make sure COdE appears in the upper display. You can do this by briefly disconnecting the battery.
2. Turn the ignition switch to ACC (I), and turn off the audio unit.
3. Push and hold the No. 1 and 6 preset buttons on the audio unit, then turn on the audio unit. The serial number
may appear as a single eight-digit number or two four-digit numbers that are combined to create the eight-digit
serial number.

NOTE: Refer to the following resources for more information:
• The applicable service manual
• Honda ServiceNews article titled “Electronically Retrieving Audio Unit Serial Numbers”
• Tech2Tech segment titled “Don’t Have The Anti-Theft Code? Here’s An Easy Way To Get It”
For 2003-07 Accord models with navigation/audio units:
1. Make sure COdE appears in the upper display. You can do this by briefly disconnecting the battery.
2. Turn the ignition switch to ACC (I), and turn off the audio unit.
3. Press and hold the top halves of the SEEK/SKIP and CH/DISC bars, then press and release the PWR/VOL
knob. The display toggles between two screens. The first screen displays a U and the first four digits of the
serial number (for example U1234). The second screen displays an L and the last four digits of the serial
number (for example L5678). Ignore the letters U and L, and use the eight digit serial number on the iN.
NOTE: Refer to the Honda ServiceNews article titled “Electronically Retrieving Audio Unit Serial Numbers” for
more information.
For navigation units with an orange, a turquoise, a white, or a gray (Canada) navigation DVD disc:
1. Enter the navigation diagnostic mode by pressing and holding the Menu, Map/Guide, and Cancel buttons at the
same time.
2. From the Select Diagnosis items screen, select Detailed Information & Settings, then select Unit Check,
then select Navi ECU or ECU Info.
NOTE: Refer to the following resources for more information:
• The applicable service manual
• The applicable navigation system PDI service bulletin
• Tech2Tech segment titled “Don’t Have The Anti-Theft Code? Here’s An Easy Way To Get It”
Navigation units with a black navigation DVD do not have an electronic method to get the serial number. You must
get the serial number from the navigation unit. Depending on the vehicle, the navigation unit can be in the dash, in
the trunk, or under one of the front seats. Refer to the applicable service manual for more information about
location and removal procedures. The serial number CANNOT be found using the navigation display serial number
located in the dash.
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Once you have the serial number, go to the iN to get the anti-theft code:
1. Log on to the iN
2. Select: SERVICE
3. Select: Vehicle Information
4. Select: Anti-Theft Code Inquiry
5. Enter your identification number
6. Enter your DPTS number (must be seven digits)
7. Enter the last four digits of your Social Security Number
8. Select: Radio/CD or Navigation
9. Enter the Radio or Navigation Serial Number
10. Select: Submit

If you still have trouble recovering the anti-theft code, refer to the FAQs.
NOTE:
• If you are not sure whether the unit is an audio unit or a navigation unit, enter the serial number under Product as
both Radio/CD and Navigation.
• Combined audio/navigation units (Civic, CR-V, etc.) use only one four-digit code. Refer to the applicable
navigation PDI service bulletin for more information about anti-theft codes.
• You may see more than one anti-theft code for a serial number. Make sure to try them all to get the correct one.
Frequently Asked Questions (FAQs)
I tried to get the anti-theft code from the iN, but it still doesn't work. What should I do?
Refer to the Converting Serial Numbers tables (on pages 3–4). Some serial numbers need to be put into the
proper format to get the anti-theft code. If you still cannot get the proper code, remove the audio or navigation unit
and make sure you have the full serial number and model reference number handy (located on the audio or
navigation unit) before calling Warranty Operations department at 310-783-3240. DO NOT replace the audio or
navigation unit until after contacting the Warranty department.
NOTE: Check the serial number on the bottom of the unit against the serial number you submitted to iN. If they are
different, try the new serial number.

Can I retrieve the anti-theft code using the VIN?
You CANNOT retrieve an anti-theft code using the VIN.

How do I determine which radios are Anti-Theft Radios?
Early models with anti-theft radios will have the words "ANTI-THEFT" on the face plate of the radio next to the
flashing red light.
Later model audio units will have words "ANTI-THEFT" and flashing red light only if the vehicle does not have a
security indicator located in the gauge assembly.
On the Bose radios there are two labels, and each label has its own serial number. Which one do I use to get the
code?
There are two labels with serial numbers on the unit, one on the bottom of the radio and the other on the side. Use
the serial number on the side label to retrieve the code.
Some older model vehicles have a tuner and a CD or cassette player together. How do I find the serial number that
will allow me to access the anti-theft code?
Though these units are stacked on top of each other, they are detachable. The serial number for the anti-theft unit
can usually be found on the tuner assembly. Please note that if the serial number begins with an MW or AJ, then
you do not have the correct serial number to obtain the anti-theft code.
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Can a customer call Warranty Operations to obtain an anti-theft code for their vehicle?
For security reasons we CANNOT give the customer the anti-theft code, and we would refer them to a Honda
dealer or to Automobile Customer Service.
When I called Warranty Operations to get the anti-theft code, I was told it will take a few days to get the code from
the vendor. Why does it take so long to get a code?
There have been instances where neither the dealer nor the warranty analyst has access to the anti-theft code
information. In this case the analyst must contact the radio vendor, either by e-mail or by phone. We have been
working with the vendors so that the information is available to you no later than 24 hours after you request a code.
On the iN, the 2003-2007 Accord only lists a five-digit audio anti-theft code, but the unit itself will only accept a fourdigit
code. What do I do?
The audio units for the 2003–07 Accords were supplied by both Japan and the U.S. factories. The Japan-built
vehicles use a four-digit code, while U.S.-built vehicles use a five-digit code.
For Japan-built vehicles, select NAVIGATION from the Product drop-down menu, enter the audio unit serial
number, and click Submit. You'll see a four-digit code.
For U.S.-built vehicles, select RADIO/CD from the Product drop-down menu, enter the audio unit serial number,
and click Submit. You'll see a five-digit code.
Also see the Honda ServiceNews article titled “Audio Unit Won’t Take Five-Digit Anti-Theft Code”.
Converting Serial Numbers
Some audio and navigation units have a serial number that must be converted before being submitted to the iN.
1. Retrieve the serial number electronically. Refer to How to Get the Anti-Theft Codes From the iN (page 1) and
the FAQs for more information.
2. Check the manufacturer of the audio or navigation unit. The parts catalogue has many of the audio and
navigation unit manufacturers listed that you can use as a resource.
3. Refer to the applicable manufacturer in the table, and convert the serial number into the correct iN format.
4. Enter the converted serial number into the iN. If the anti-theft code does not work, go to step 5.
5. Remove the audio or navigation unit, and write down the full serial number and the model reference number
from the unit. Call the Warranty Operations department at 310-783-3240 for help. Do not call Tech Line.
ALPINE
CLARION
Example Serial # Correct iN Format
CDB23009502B CDB23009502 (Delete letter at end of Serial #)
880134988 B80134988 (Replace first digit with “B”)
B80134432A B80134432 (Delete letter at end of Serial #)
Example Serial # Correct iN Format
CLJGKB940025793 40025793 (last eight digits)
CLJAAA140103579 0003579 (Add 00 + last five digits)
CA33608763 CA33608763 (no changes)
0006099 0006099 (no changes)
4 of 4
PIONEER
PANASONIC
KENWOOD
Example Serial # Correct iN Format
SB02348 302348 (Replace first two letters with “30”)
CCPK002110UC 30002110 (Remove letters, begin with “30”)
Example Serial # Correct iN Format
M96G100010 M96G100010 (no changes)
00A10021 00A10021 (no changes)
10002 10002 (no changes)
17012345 10012345 (change second digit to “0”)
C01A112345 11112345 (precede last five digits with “111”)
11212345 11112345 (precede last five digits with “111”)
Example Serial # Correct iN Format
KE0893P8009301 KE0893P8009301 (no changes)
 

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Hey gang I recently swapped the head unit in my 2015 civic sedan for a 2016 crv head unit. I did this to install Apple CarPlay in my car a feature that I've wanted for some time now. I got that all working after following a thread on this site and it is great. Anyways after doing so I noticed 2 things:

A) Every time I turn the car on I am greeted with a diagnostic window that won't go away unless I by pass it via the secret menu (power, home, eject) and then return takes me to the Home Screen. I cannot go through the honda website to obtain an unlock code as the system I am trying to unlock did not come with my car and does not match my vin. I also tried the bypass method of holding menu for a while and got nothing. I was hoping someone on this site would be able to help me navigate this issue (no pun intended).

B) Since installing the new unit any audio that is played through it is barely audible at the max volume (40) and almost silent below it. I am sure it has something to do with the new unit but have no clue what. I check the fuse for the amp and all was fine.

If anyone can help would be much appreciated.

Thanks!
If the sound is barely audible it sounds like it needs an amp. Does your car have the premium audio system? The headunit might be a premium audio headunit and doesn't have the factory amp connected.
 
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