[xj40] XJ40 Radio codes

XJ40
1

Hi all

I have trawled the archives without any reall suscces. The topic has come up
before but I cannot find any defintive answer.

The security code is, based on the series of soldered links visible through
a small hole on the back of the radio (AJ9100 and AJ9200).
Question, how do you convert the 6 digit pad code into the 4 digit security
code ?

The code is not simply a row of 6 links with two missing therefore giving a
4 digit code.
The soldered links will in effect give a 6 digit series of 1s and 0s (1
being a link, 0 being open)

For example, I have one here that would have a pad code of 100111 and has a
security code of 6354.

I did wonder if it was a straight binary - decimal conversion but that is
not the case.

Has any clever bod out there actually cracked the system ?

Phil

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2

In reply to a message from Phil Parrington sent Mon 30 Apr 2007:

Could be a look up table, thats how we implement most codes in our
designs, these generally take several known examples to crack for
most low security stuff.

Otherwise, this example could be, reverse the digits, 3 bits of 1st
then msb of each remaining.

Jamie
www.iecd.co.uk–
The original message included these comments:

For example, I have one here that would have a pad code of 100111 and has a
I did wonder if it was a straight binary - decimal conversion but that is

–
Jamie. XJR 94 (XJ40). XJ12 S3 Sovereign 89
Newtown, Powys, United Kingdom
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3

In reply to a message from ghound sent Mon 30 Apr 2007:

I’ve had a few of the codes, and never did find a clear
pattern in them.

There are only 64 combinations, with a bit of luck, we
should be able to build a database of the codes.

Would be handy to be able to look them up rather than have
to change the jumpers.–
91 XJ6, 93 Sov, 97 Sov – Driveway’s crowded!
Tampa Fl, United States
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4

Win

It would simplify matters !
There must be a pattern however, there is a website that offers to transpose
the pad code into a security code for a small price.
see
http://www.dndservices.co.uk/htmls/online/jaguaraj9100r.php
No problem with paying obviously as they are offering a service, but it
would be nice to know what the coding is so we can do it for ourselves :slight_smile:

Phil

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Call (+44) 01323 740471 ( 0900-1730 Mon-Fri, 0900-1330 Sat GMT ONLY)>From: “Win” drk2nd@netscape.net

To: xj40@jag-lovers.org
Subject: Re: [xj40] XJ40 Radio codes
Date: Mon, 30 Apr 2007 21:52:55 +0200

In reply to a message from ghound sent Mon 30 Apr 2007:

I’ve had a few of the codes, and never did find a clear
pattern in them.

There are only 64 combinations, with a bit of luck, we
should be able to build a database of the codes.

Would be handy to be able to look them up rather than have
to change the jumpers.

91 XJ6, 93 Sov, 97 Sov – Driveway’s crowded!
Tampa Fl, United States
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5

Here are some to try:

9:48 PM 3/20/2006

“The code for the original radio in my '91 was 4316. The code for
the replacement radio I bought off eBay (model year unknown) is
5314. I called the jag dealer service department to get the code
for my replacement.”

Ours is 2413, as is another '93 in NC.

A '92 Sov in UK has 2413

1:30 PM 3/22/2006
1993 - 2413
1992 - 2413
1991 - 1463
??? - 5314

Seems to be a pattern of using 4 - 1 - 3 somewhere each time.

“Who all has the radio with the CD button? I wonder if this matters
in the coding. Both of the last 2 listed above had the CD button.”

“My '93 Xj12 has the CD button and my code is 5423, IIRC.”
rdr

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6

In reply to a message from Phil Parrington sent Mon 30 Apr 2007:

Phil, Rob J here, I also thought the pad code would translate
directly some way to the security code, but most definitly not the
case that I can see, BUT, there has to be a link, as the decode guy
I use does it via email in 30 seconds, AND can tell me if the unit
has been reconditioned and recoded, he always has the original code
from the unit somehow, I just then either resolder or undo the pads
back to original and bingo works EVERY time

p.s still having V12 40 cat problems AGAIN–
The original message included these comments:

Hi all
I have trawled the archives without any reall suscces. The topic has come up
before but I cannot find any defintive answer.
The security code is, based on the series of soldered links visible through
a small hole on the back of the radio (AJ9100 and AJ9200).
Question, how do you convert the 6 digit pad code into the 4 digit security
The code is not simply a row of 6 links with two missing therefore giving a
4 digit code.
The soldered links will in effect give a 6 digit series of 1s and 0s (1
being a link, 0 being open)

–
robv12
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7

In reply to a message from Phil Parrington sent Mon 30 Apr 2007:

I just picked up a 94 XJ6 with 58k on the clock. I also needed the
4 digit radio code. As a shot in the dark, I called my local
dealer, he asked for the Vin No. and presto - he gave me the code
in about 30 seconds. Not bad for a newbie:-)–
dr doug
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8

Ralph

That is interesting.
I ahve tried all those (and more) with no success.
Have you at any time ( or can you now ) made a list of the pad code against
the matching 4 digit security code ?
We have , on another forum a guy who is experienced in binary code (6 bit in
particular) who is keen to try and solve the algorithm but will need as many
known pairings as possible.

Phil

Find us at
www.xjjaguar.co.uk/

Call (+44) 01323 740471 ( 0900-1730 Mon-Fri, 0900-1330 Sat GMT ONLY)>From: “Ralph Ricks” rickydik@ix.netcom.com

To: “XJ40 digest” xj40@jag-lovers.org
Subject: Re: [xj40] XJ40 Radio codes
Date: Mon, 30 Apr 2007 16:07:17 -0700

Here are some to try:

9:48 PM 3/20/2006

“The code for the original radio in my '91 was 4316. The code for the
replacement radio I bought off eBay (model year unknown) is 5314. I called
the jag dealer service department to get the code for my replacement.”

Ours is 2413, as is another '93 in NC.

A '92 Sov in UK has 2413

1:30 PM 3/22/2006
1993 - 2413
1992 - 2413
1991 - 1463
??? - 5314

Seems to be a pattern of using 4 - 1 - 3 somewhere each time.

“Who all has the radio with the CD button? I wonder if this matters in the
coding. Both of the last 2 listed above had the CD button.”

“My '93 Xj12 has the CD button and my code is 5423, IIRC.”
rdr

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9

Sorry, Phil, that’s all I have - codes that others have volunteered. Dunno
why others are afraid to reveal theirs - on a long obsolete radio that has
no street value.----- Original Message -----
From: “Phil Parrington” pp221158@hotmail.com

That is interesting.
I have tried all those (and more) with no success.
Have you at any time ( or can you now ) made a list of the pad code
against the matching 4 digit security code ?
We have , on another forum a guy who is experienced in binary code (6 bit
in particular) who is keen to try and solve the algorithm but will need as
many known pairings as possible.
Phil

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10

In reply to a message from Phil Parrington sent Tue 1 May 2007:

Phil,

Here’s a list of the (few) codes I know:

Starting from the front faceplate of the radio:

: : = 5612
: : = 6152
::::: = 2463

Those jumpers are peskly little fellows to change!–
91 XJ6, 93 Sov, 97 Sov – Driveway’s crowded!
Tampa Fl, United States
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11

Hi all.
Just to throw a curve ball into the mix re radio codes.
I have a '92 4.0l sov ex Hong Kong radio code is 3521
Regards Robin.
Auckland NZ----- Original Message -----
From: “Ralph Ricks” rickydik@ix.netcom.com
To: “XJ40 digest” xj40@jag-lovers.org
Sent: Tuesday, May 01, 2007 11:07 AM
Subject: Re: [xj40] XJ40 Radio codes

Here are some to try:

9:48 PM 3/20/2006

“The code for the original radio in my '91 was 4316. The code for the
replacement radio I bought off eBay (model year unknown) is 5314. I
called the jag dealer service department to get the code for my
replacement.”

Ours is 2413, as is another '93 in NC.

A '92 Sov in UK has 2413

1:30 PM 3/22/2006
1993 - 2413
1992 - 2413
1991 - 1463
??? - 5314

Seems to be a pattern of using 4 - 1 - 3 somewhere each time.

“Who all has the radio with the CD button? I wonder if this matters in
the coding. Both of the last 2 listed above had the CD button.”

“My '93 Xj12 has the CD button and my code is 5423, IIRC.”
rdr

Visit the Jag Lovers homepage at http://www.jag-lovers.org for exciting
services and resources including Photo Albums, Event Diary / Calendar, On
Line Books and more !

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12

In reply to a message from Robin and Maureen sent Sat 5 May 2007:

And on my '91 it is 2163 - or is it 2631?
No it’s 2361… DAMN - I’m locked out for 2 hours now! :frowning:

(It is 2163 after all - I still have the original plastic
card with the code and the radio serial number inscribed)–
The original message included these comments:

Just to throw a curve ball into the mix re radio codes.
I have a '92 4.0l sov ex Hong Kong radio code is 3521

–
Bryan N, '91 Sovereign 4.0 L, RHD
Cambridge, United Kingdom
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13

In reply to a message from Bryan N sent Sat 5 May 2007:

I sold my '91 earlier this year and its radio code was 5314.
Wife’s '92 is 1324.–
Larry Trom 67 OTS, 92 XJ40
Richmond, VA, United States
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14

In reply to a message from LT sent Sat 5 May 2007:

Hi.

Regarding radio codes, I’m just starting an exercise to see
if the radio code can be derived the pad code.

What is a pad code? Well I haven’t seen one yet, so I’m not
quite sure!

I am told that there is a ‘window’ in the radio chassis
somewhere, through which a series of six solder links can be
viewed. Each link is either there(1) or not(0), and in some
way defines the radio code.

With six links, there will be a maximum of 64 possible radio
codes (binary math you know). Given the limited number of
radio codes we already know, this seems reasonable.

I am following-up the possibility of it being a simple
transposition of the 6 binary bits of the pad code to
generate the 12-13 bits of the radio code. So far I know that:

Pad Code == Radio Code
100111 == 6354
010001 == 5612
000101 == 6152
011111 == 2463

When I find my own pad code, I’ll have the pad code for
radio code 2413 too.

The more code pairs I get, the easier it will be to solve -
IF it is a simple patch-panel type code (:D).

I am told there is a site somewhere on the web that must
have already solved this as they can provide a radio code
from a pad code - for a fee.

If I am right about the coding method (and an active poster
from Alpine hasn’t shot me down yet), the solution should be
no more complex than an average soduko puzzle.

If anyone has pad code/radio code pairs, please post them.–
Mike. '92 Soverign 4.0 RHD
London, SW17, United Kingdom
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15

In reply to a message from Robin and Maureen sent Sat 5 May 2007:

Hi all
Mines a 93 4.0, code is 4352–
mongoose100
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16

MikeSW17 wrote about a small window that shows 6 solder points. I found it under that white sticker but the numbers are 1-6. The code of my radio is 1324. Does anybody have their radio taken apart and check the numbers if they’re 1-6 or 0s and 1s? Thanks.

radio1
radio11632×1224 599 KB

radio2
radio21632×1224 347 KB

radio3
radio31681×847 485 KB

17

Hey guys,

Sorry for late reply but it might be handy for someone.
For AJ9100 radio, if you will desolder all pads and make a break in between them, as on this picture:
Screenshot 2024-02-26 at 00.20.43

It seems then, that the pin is always: 1324.
As for example above, it seems that it also works for AJ9200.

I did it simply by using small soldering tip and soldering wig to remove excess of solder from the pads.

18

Now my radio works as expected:

Screenshot 2024-02-26 at 00.22.23
Screenshot 2024-02-26 at 00.22.231920×970 133 KB

Hope it would help someone to revive their old radio units!

Thanks,
Kris

1 Like
19

if someone is collecting the pin configurations for Alpine Radios, like 9100, 9150 or 9200, let me know and I’ll happily furnish mine. It maybe good to have an inverntory of these different pins and how we can adjust them by the solder joints.

rensch

20

Does anyone have the schematics for Alpine radios like, 9100, 9150 or 9200. I’m trying to get my unit fixed, but can’t do it without the schematics.

rensch