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Full Version: Alarm / Central Locking: Programming Remote Controls Into The Remote Receiver
Alfa Romeo 145 - 146 Forum > Technical > "How To" Guides
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GialloEvo94
Instructions for remote programming can be found in the workshop manuals, however I've found these aren't always easy to find quickly or aren't easy to understand for a first-timer so I knocked up some easier to follow and more intuitive step-by-step instructions a while back which I've been emailing to members who've needed them.

I thought it would now be a good idea just to post these in the public domain so they can easily be found by a forum or Google search.

Overview
When a brand new remote receiver is installed (i.e. at the factory or a replacement receiver purchased and installed), new or existing remote controls can be programmed/reprogrammed into it without the need to unlock the remote receiver first. However, after the car has been remotely locked/unlocked a total of 256 times, the receiver will then automatically lock itself. Once this has occurred, the only way to then program/reprogram in any new or existing remote controls is to unlock the remote receiver first using the 4-digit code for one of the remote controls that has already been programmed into it.

The remote receiver unit is installed in the roof next to the rear view mirror...

Infrared (IR) receiver used on early cars
[attachment=13571:RemoteReceiver_IR.jpg]

Radio Frequency (RF) receiver used on later cars
[attachment=13572:RemoteReceiver_RF.jpg]

The 4-digit code for each remote control was originally supplied as a white sticker on a tag attached to the remote control when it was new and the code is shown as 4 digits separated by dots...

Infrared (IR) remote fob used on early cars
[attachment=13573:RemoteCo...olFob_IR.jpg]

Radio Frequency (RF) remote key used on later cars
[attachment=13574:RemoteCo...olKey_RF.jpg]

Remote 4-digit Codes (or 6-part codes on some Fiat cars)
In some cases, the original owner of the car may have have been sensible enough to put the 4-digit code stickers somewhere in the service manual or the owner's handbook. Unfortunately though, in a lot of cases it seems that the original owner kept the codes somewhere safe and then never passed them onto the new owner of the car. Alfa do not keep a record of the 4-digit codes, however I can get the required codes for you and/or reset your remote receiver back to a factory state so that remotes can initially be programmed in without needing to use any codes. I am able to do this for the Alfa 145, 146, 155, 164 & 916 Spider/GTV remote systems (both radio frequency and infrared systems). I have also been able to do it for some Fiats and Lancias of the same era (see my YouTube videos HERE and HERE). If you need this done then please either send me a private message or add a reply to this thread. Please note that I unfortunately cannot do anything for the Alfa 156 and 166 as these use a completely different type of remote system.

Programming Procedure
The two sections below give step-by-step instructions on how to program remotes into locked and unlocked remote receivers. These instructions apply to the Alfa 145/146 as well as the 155, 164, 916 Spider/GTV and a number of other Alfa / Fiat / Lancia cars that also come from the same 1995-2001 era.

1. Protected Programming: Unlocking a LOCKED Remote Receiver for programming
In order to unlock a remote receiver, you will need one of the 4-digit codes for a remote control that has already previously been programmed into the remote receiver. Without one, you will not be able to unlock the remote receiver for programming/reprogramming in new or existing remote controls.

Once you have one of the 4-digit codes, simply follow the steps below:-
  1. Press and hold in the pen tip button on the remote receiver during which the LED on it will start flashing on and off.

  2. Release the pen tip button and then wait for the LED on the remote receiver to illuminate once and then extinguish again before continuing.

  3. Now immediately press and release the pen tip button the number of times that corresponds to the first number of the 4-digit remote control code. Each time the pen tip button is pressed, ensure that the LED on the remote receiver lights up which confirms that it has registered the button press. If the number is zero then don't press the button at all and just go onto the next step.

  4. Wait for the LED on the remote receiver to illuminate once and then extinguish again before continuing.

  5. Now immediately press and release the pen tip button the number of times that corresponds to the second number of the 4-digit remote control code. As before, ensure that the LED on the remote receiver lights up each time the button is pressed which confirms that it has registered the button press. If the number is zero then don't press the button at all and just go onto the next step.

  6. Wait for the LED on the remote receiver to illuminate once and then extinguish again before continuing.

  7. Now immediately press and release the pen tip button the number of times that corresponds to the third number of the 4-digit remote control code. As before, ensure that the LED on the remote receiver lights up each time the button is pressed which confirms that it has registered the button press. If the number is zero then don't press the button at all and just go onto the next step.

  8. Wait for the LED on the remote receiver to illuminate once and then extinguish again before continuing.

  9. Now immediately press and release the pen tip button the number of times that corresponds to the fourth number of the 4-digit remote control code. As before, ensure that the LED on the remote receiver lights up each time the button is pressed which confirms that it has registered the button press. If the number is zero then don't press the button at all and just go onto the next step.

  10. Now that all four digits of the code have been entered, one of the following two things will happen:-
    • VALID CODE ENTERED -> The LED on the remote receiver will start flashing to indicate that a valid 4-digit code has been entered and that the remote receiver has now been temporarily unlocked to allow a remote control to be programmed into it. While the LED is still flashing (if left to flash, it will flash 18 times and then stop), immediately begin the key programming procedure by following the instructions for "Programming Remote Controls into an UNLOCKED Remote Receiver". If the LED stops flashing before the key programming procedure is initiated (i.e. it has been left to flash all 18 times), the "Unlocking a LOCKED Remote Receiver" procedure (this procedure) must be started from the beginning again.
    • INVALID CODE ENTERED -> The LED on the remote receiver will illuminate once for a period of a ~10 seconds to indicate that an invalid 4-digit code has been entered. If this happens then the remote receiver will remain locked and programming will need to be restarted from step 1 again using a 4-digit code which is valid and already known to the remote receiver.

2. Simplified Programming: Programming Remote Controls into an UNLOCKED Remote Receiver
If your remote receiver is already in an unlocked state or you have just unlocked it using the instructions in section 1 above, simply follow the steps below to program a new remote into the receiver:-
  1. Press and hold in the pen tip button on the remote receiver so that the LED on it flashes on and off.

  2. With the pen tip button still held in (do not let go of it in step 1) and the LED still flashing, briefly press the button on the remote control so that the LED on the remote comes on (for the infrared remote systems, make sure the remote control is held at least 20cm away from the remote receiver when doing this).

  3. If the code transmitted by the remote control was successfully registered and stored by the remote receiver then the LED on the remote receiver will stop flashing and briefly switch to being constantly illuminated. If the LED does not stop flashing or switch to being constantly illuminated then the programming of the remote control has failed and the programming procedure will need to be restarted from the beginning again.

  4. Now release the pen tip button on the remote receiver to complete the programming.

  5. Wait 30 seconds before doing anything else. During this period the receiver will re-pair itself with the alarm unit. On some systems the LED on the receiver will flash 6 times, and on other systems you may hear a faint chirp from the alarm unit.
If the remote receiver was previously locked then it will now automatically lock itself again so if another remote control needs to be programmed in (or programming failed and another attempt needs to be made to program in a remote control), the instructions for "Unlocking a LOCKED Remote Receiver" will need to be followed again from the beginning.

If the remote control was successfully programmed into the remote receiver, pressing the button on the remote control will now cause the LED on the remote receiver to light up briefly during which the central locking will also be locked (or unlocked) and the alarm armed (or disarmed).
simon88wilson
Just did this on my car! Works like a charm, I struggled a bit with not being able to see the green LED due to the sun! but got there in the only end only took a few minutes.
Mauricio ARTC89
Hi Giallo !

My 96' Alfa 155, uses this alarm with IR remote control, but I do not have the 4-digit... mad.gif
I read your topic about this and would like to know the step by step to program, for the remotes that I bought used.
Could you help me?
Any tips or information will be of great help worshippy.gif

Thanks.
Cheers from Rio de Janeiro.
Moe. coolio.gif
GialloEvo94
QUOTE(Mauricio ARTC89 @ 14th December 2012 00:31) *
My 96' Alfa 155, uses this alarm with IR remote control, but I do not have the 4-digit... mad.gif
I read your topic about this and would like to know the step by step to program, for the remotes that I bought used.
Could you help me?
Any tips or information will be of great help worshippy.gif

If you don't have any of the original 4-digit codes then the only option is to either virginise your receiver back to a "new from factory" state or decode the codes already stored in the receiver. I can do this but it would involve sending your receiver unit to me in the UK.

This will definitely get your remote locking working again but whether or not your alarm system will also start working again will be dependant on your alarm siren unit not being faulty, the alarm unit already being in a disarmed state, and the alarm unit having power to it (and switched on at the keyswitch in the glovebox).

I've done a few 155 IR systems. Two ended up fully working (both central locking and alarm) and another ended up with just the central locking working (the alarm unit was faulty).

If you want me to fix your system, send me a PM and we can sort out the details smile.gif
Mauricio ARTC89
QUOTE(GialloEvo94 @ 14th December 2012 21:40) *
If you don't have any of the original 4-digit codes then the only option is to either virginise your receiver back to a "new from factory" state or decode the codes already stored in the receiver. I can do this but it would involve sending your receiver unit to me in the UK.

This will definitely get your remote locking working again but whether or not your alarm system will also start working again will be dependant on your alarm siren unit not being faulty, the alarm unit already being in a disarmed state, and the alarm unit having power to it (and switched on at the keyswitch in the glovebox).

I've done a few 155 IR systems. Two ended up fully working (both central locking and alarm) and another ended up with just the central locking working (the alarm unit was faulty).

If you want me to fix your system, send me a PM and we can sort out the details smile.gif

Giallo,

Thanks for the quick reply.
I'll accept your help and I will send the receiver in January 2013.
Only the receiver enough? You do not need the remotes (black plastic cubes)?

Please send to me your full address in UK. (PM or by e-mail)

Thank you for your attention and help. worshippy.gif
Kind regards,

Moe. coolio.gif
Mitchok
Hi

I have a gtv that has a single button IR remote. Do you know if it is the same one? The GTV is a 1996 model?

If so, can you send me details of what I need to do to get the unit reset to virgin status?

Thanks
Darren
145man
Hi
I tried to revive an old thread then noticed this!!!
Can you help me as my car has developed this problem in past two weeks
Many thanks
Not An Alfaman
Could you please PM me about the details of your service - I have a replacement IR receiver unit (my original has been declared faulty) and need the memory erasing etc. so I can input my fob code.

One slightly strange thing is that having purchased a new genuine Fiat fob a couple of years ago I was able to code the receiver - I assume this is a freak as your instructions say it locks out after 250 opens?

Thanking you in anticipation
Dave
GialloEvo94
QUOTE(Not An Alfaman @ 5th March 2014 15:15) *
I have a replacement IR receiver unit (my original has been declared faulty) and need the memory erasing etc. so I can input my fob code.

One slightly strange thing is that having purchased a new genuine Fiat fob a couple of years ago I was able to code the receiver - I assume this is a freak as your instructions say it locks out after 250 opens?

I've not specifically dealt with a Fiat Coupe remote receiver unit before but looking through the manuals it appears that it's very likely to use the same underlying hardware as the Alfa infrared remote receiver systems so I'm fairly confident I will be able to do something to get your system working again if required. I've sorted out quite a few systems over the years and the most recent one was from a 1993 Fiat Tipo which turned out to be one of the more challenging ones but I got there in the end smile.gif

The "lock-out" after 256 operations is when the receiver goes into "protected programming" mode. Once in this mode, in order to program any further remotes you must first enter the 4-digit code of an already programmed remote before you can program in a new remote. Prior to the 256 operation limit being reached, new remotes can be programmed in using "simplified programming" without the need to enter a code first. On this basis I assume you had to unlock the receiver with a 4-digit code before you could program in your new remote.

A couple of initial questions to kick off with:-
  1. Do you know for sure that your original receiver is definitely dead? If you press and hold the pen-tip button on the bottom of it, does the LED start flashing on and off?
  2. Does the red LED on the remote light up when you press the button on it?
  3. Have you tried changing the battery in the IR remote? While these remote can work with 1x CR2032 (3v) battery, they work best and have a stronger signal if you use 2x CR2016 batteries (giving 6v in total).
  4. Have you checked that the IR LED on the front of the remote is actually producing an IR signal? You can test this with the front facing camera on a phone which don't usually have an IR filter on (see this video and the description below it).
I can certainly virginise any receivers you want and also diagnose (and possibly get working) the non-working receiver, plus supply 4-digit codes for any remotes which you don't already have a code for. Do the above checks first and we can go from there.
ryezy
hi giallo
have remote keys with new circuit boards so needed to sync to receiver but do not have correct codes if I send you receiver can you enable it to accept new remote keys for phase 2 red key one button
please
many thanks
re-book
QUOTE(GialloEvo94 @ 30th April 2012 12:07) *
Remote 4-digit Codes
In some cases, the original owner of the car may have have been sensible enough to put the 4-digit code stickers somewhere in the service manual or the owner's handbook. Unfortunately though, in a lot of cases it seems that the original owner kept the codes somewhere safe and then never passed them onto the new owner of the car. Alfa do not keep a record of the 4-digit codes, however with the required equipment and knowledge, a remote can be decoded in order to retrieve it's 4-digit code and/or a receiver programmed back to factory default settings so that any remotes can be programmed into it even if you don't have the 4-digit code of the remote(s). I am able to do this for the 145, 146, 155, 164 & 916 Spider/GTV remote systems (and also some Fiats from the same era) so if you need this done then either send me a private message or add a reply to this thread.

Hi Giallo,

I'm happy I found your posting. I have a Fiat Coupe from 1995 and no 4 Digit Code for the Car.
The good is I still have working remote but it is worn out. My wife gave me a new (orignal) one for Christmas.
The new key came with a 4 digit code. As I understand now I need the code from the old remote or the key that was
delivered with the car, which I don't have. My mechanics told me that I need a new interior light (with ir-receiver) assembly,
but they are not sure. This car has a alarm but has no transponders in keys or a red(brown)key e.t.c.

Can you help me to get the new key working with the car without having the code.

Thanks and my best regards

from Berlin - Florian
GialloEvo94
QUOTE(re-book @ 23rd March 2014 21:45) *
Hi Giallo,

I'm happy I found your posting. I have a Fiat Coupe from 1995 and no 4 Digit Code for the Car.
The good is I still have working remote but it is worn out. My wife gave me a new (orignal) one for Christmas.
The new key came with a 4 digit code. As I understand now I need the code from the old remote or the key that was
delivered with the car, which I don't have. My mechanics told me that I need a new interior light (with ir-receiver) assembly,
but they are not sure. This car has a alarm but has no transponders in keys or a red(brown)key e.t.c.

Can you help me to get the new key working with the car without having the code.

Thanks and my best regards

from Berlin - Florian

You won't need a new IR receiver but you would need to send your existing IR receiver to me to be "virginised" (set back to an as-new factory state). I've just done exactly this for another Coupe owner.
KrissKross
Hi Giallo,

Thanks for your research job. I've the same problem on a 1992 Lancia with IR and 4-digit code.
Would you be so kind to help me reset my receiver?

Thanks in advance.
GialloEvo94
QUOTE(KrissKross @ 23rd April 2014 10:53) *
I've the same problem on a 1992 Lancia with IR and 4-digit code.
Would you be so kind to help me reset my receiver?

Yes probably, as long as it's the same type of system. What is the model of the car?
KrissKross
QUOTE(GialloEvo94 @ 23rd April 2014 14:18) *
Yes probably, as long as it's the same type of system. What is the model of the car?

It's a Lancia Thema from 1992.
IR receiver with 4 digits ...
Simple programming, no 256 lock and so on. The first style...

I've opened the receiver and it's made of a ST 93C06B6 EPROM and a COP822C microcontroller.
GialloEvo94
QUOTE(KrissKross @ 23rd April 2014 13:21) *
It's a Lancia Thema from 1992.

Yes, it looks like the Thema does use the same system as used on Fiats / Alfas of the same era.
m54b30
Hi Giallo, I have the same problem as everybody else, only one remote and no code.
Mine is a Alfa GTV PH2, any help is highly appreciated.

Regads, Patrik
alastpa
Hi Mate
Quick introduction as I'm new here. Names Alasdair from South Africa. I'm quite active on the alfaowner forum but this is my first post here. Got a 03 Spider V6 and an 09 147 JTDm 16v

I've got a working reciever and 1 key on my Spider. Ages ago the dealer here in Johannesburg got my non functional remote central locking working by replacing the receiver and I assume just programming my existing key into it. Unfortunately the alarm module wouldnt cooperate. I later learned after buying a new alarm box at stupid money that the receiver actually needs to have its memory unlocked and re-programmed with the alarm box switched on. Needless to say I dont have the key code to unlock the receiver memory and reprogramme.

Would you be able to extract the code from either the receiver or key?? I'd be more than happy to pay you and ship the correct component to you.
J.M.P.
Hi Giallo,

I need your help. I need to reset my alarm receiver on a GTV can you please provide me your contact details ?

Regards

JMP
alastpa
Hi Giallo
DHL'd you my two boards this morning.
Elektronix
Hi GialloEvo94,
i am solving a problem with Alfa Romeo 146. Previous owner of this car somehow blocked up remote central locking. Transmitter in key seems to work and receiver in car should work too, but it needs insert a 4-digit (i think) code into it. But we don't have this code... So is there any possibility for me to virginise receiver unit or somehow get these codes from transmitter/receiver? I can send it to you to the UK but i am afraid it might be lost during transport, because i am from Czech Republic (greetings :-) ) Anyway, i'm electrician, able to program some uPC from Microchip, Atmels,... so i have some knowledge and equipment to do some things on my own :-)

Have a nice day,

Elektronix

from Czech Republic
Emjay
Hi there GialloEvo94,

I've been trying to contact you about re-setting my 164 alarm / central locking PCB, but this forum wont let me send you a message until I have made 10 posts. Aargh !!

I followed you here from the message you left over on the 164 forums.

Can you possibly get in touch please?

Thanks in advance,

Marcus

Remote_Keys
Hi There

You seem knowledgeable on the 145 remotes . . . . . . Is it cheeky if my first post here is a question?

We produce working transponders for vehicle keys - usually when people have lost theirs or don't want to pay dealer fees. We don't supply remote for Alfa however.

I have the following issue: we have a 1998 145 - battery disconncted whilst it underwent a lot of work. The vehicle is all back toegther, and we can start the engine - but for some reason we cannot get the alarm to turn off? We have the vehicle's original remote, but it doesn't seem to work.

Any ideas?

Your thoughts would be most welcomed.

Thank you
Piorek
Hi
I have bought new factory remote receiver from Fiat&Alfa-Romeo dealer.
As receiver is brand new I'm training to make programming (simplified programming) and adding my infrared transmitter.

Unit is brand new so it's possible is locked? After pressing transmitter button, led on receiver stop flashing and nothing happen....Please help sad.gif
How it's possible?

Regards,
piorekp
Banner
Hi Giallo,

I've got an Alfa 916 Spider that has the radio receiver module in it. The only key that I have has the remote locking hardware and button missing.

Is it possible to either get the receiver unlocked, or decode the existing 4 digit code?

Any help would be appreciated.

John
satan
hello
i bought alfa 146 and it has , i think. locked reciever
the battery was bad in remote ,replaced it and it cant be programmed
when i push the reciever button it flashes and when i push on remote it stoppes and nothing
what can i do? i need to unlock the reciever??
richgreenalfaholic
Hello,

Congrats on the fantastic thread smile.gif

I really want my remote locking to work! Unfortunately like many others I haven't been fortunate enough to have the 4 digit key code handed down sad.gif

I'd be very grateful for your assistance with this, thank you in advance!

Cheers,

Rich
johnamair
Hi Giallo

I would be really grateful for any advice you can give me.

I have a Spider, manufactured in 2000.

I recently had the remote key repaired. I have the 4 digit code (prefixed by a W) and have followed your really helpful step by step guide. However, the receiver will not accept the code (I get a 10 second light at the end of input process) and so the receiver does not unlock.

Does the receiver lock completely if an incorrect code is entered several times?

Does the alarm have to be switched on for the receiver to be programmed? It is switched off at the moment because the remote not working.

How can I get the receiver unlocked/back to factory state?

Cheers

tonek
Hi Giallo.
I need your help to reset the central locking receiver in my Dedra.
Can you provide me your contact details?

Thanks,
Tom
Unclejam
Hello there, I read with interest your post about "virginising" the remote receiver of a GTV / Spider to accept new remotes. (And your Youtube vid)
I have a lovely 2002 V6 Spider which I am in the process of restoring back to a factory fresh state and I only have the red transponder (non-remote, non-master) key, so have no central locking or arm / disarm of the alarm. I have no code card, or any codes for that matter.

This is very annoying and I have got hold of some genuine spare red remote key fobs (one-button) and can change the key blade and transponder chip myself but of course, this is pointless unless the new remote transceiver can be made to open and close the car.
My question is: Do I send my RF receiver to you for resetting? How much do you charge for this and how easy is it to remove it?
I'm a newbie on this forum, so don't know anyone on here yet.

Many thanks in advance for your help on this subject.
denraud2
Hi GialloEvo94,

I have an Alfa GTV 916 of 1998, with infrared remote, and an other gtv with radio frequency, but both don't work.

Can you help me to fix it?

Thank you so much,

Alexis
atko101
hey mate i bought alfa 146 with only one key and no label with codes the problem is next, i can run the car because transponder is ok and i can do central unlock but i cant remote unlock the car, the led on key is not working at all so i oppened the key cleaned it it had sort of black grease allover it so the electronics cleaned new battery inserted, still no led illuminating next thing i did i changed the button on board, still not illuminating, then i closed the circuit with battery dircetly on led it illuminated so my conclusion is that logic board is broken. I have come to idea to buy used electronics and program it into reciever but since i dont have code i didnt try to buy anything before i ask you if you could tell me how to virginise reciever on my alfa 146, then i would program used key that ill have to buy in my reciever. Is this possible or you can tell me some other solution.
Greetings Admir
Bully2A
Hello GialloEvo94,

I'm a new French owner of a 2001 3.0 V6 spider.
Actually I'm trying to solve my remote key receiver problem because, like many other,s I don't have this famous 4 digits code...
I've changed the alarm unit for a new one (a lot of corrosion inside) and bought a new receiver from my alfa dealer (200 euros...)
This new unit came without a code so after a few phone calls they gave me the procedure and I've surely missed something because after looking at your video on YouTube I'm unable to repeat it, the led never stops flashing.

So now I'm the happy owner of two receivers without code and a brand new alarm who protect nothing blush.gif

Can you help me to virginise one of my receivers and provide me this code ?

Thanks in advance for your help.
Sincerly
Eric/Bully2A
M.J.S
GialloEvo94,

I'm hoping you can help me... I have a 2001 GTV with 2 RF remote keys. One works, well the led flashes the other doesn't. Neither of them work with the remote central locking.
I do not have the 4 digit code.

Is it possible to make the one working key work with the remote locking again?

Thanks
M
Gtpassion82
hi
GialloEvo94
Can you reset my alarm? It is on an Alfa spider my1995. Thank you
GaryP
Hi Gialloevo94,

I have a 147 T Spark Lusso (2005). Purchased 2011.

I had to recharge the battery, the key will no longer work.

I disconnected the fuse box hoping it would reset. This did not work.

I have not been supplied with the four digit code required, can you help me please?
Kind regards Gary P
GialloEvo94
QUOTE(GaryP @ 27th November 2015 07:39) *
Hi Gialloevo94,

I have a 147 T Spark Lusso (2005). Purchased 2011.

I had to recharge the battery, the key will no longer work.

I disconnected the fuse box hoping it would reset. This did not work.

I have not been supplied with the four digit code required, can you help me please?
Kind regards Gary P

The Alfa 147 uses a different remote central locking system to the one mentioned in this thread so unfortunately I cannot help with these cars. Assuming that neither the remote key or remote receiver systems on your car aren't faulty then you may find that keys can be reprogrammed to the central locking system with the Multiecuscan software. Probably best to ask on one of the other Alfa forums that has a member section specifically for the 147.
nixal123
QUOTE(GialloEvo94 @ 2nd December 2015 21:32) *
The Alfa 147 uses a different remote central locking system to the one mentioned in this thread so unfortunately I cannot help with these cars. Assuming that neither the remote key or remote receiver systems on your car aren't faulty then you may find that keys can be reprogrammed to the central locking system with the Multiecuscan software. Probably best to ask on one of the other Alfa forums that has a member section specifically for the 147.

I had Chris Curtis sort out my sons 147 from the other forum. Really helpful and quick

I got a 98 CF1 GTV a month ago. it came with 2 complete function red keys but no remote fobs or code.
Can you help?
PS no magic brown key either smile.gif
Thanks
Andy

sorry reply above should be here (145 forum newbie)
alastpa
Just an update: GialloEvo is an absolute squire and a gentleman! My 2002 Spider V6 had one working remote but no codes to program another AND the alarm system didn't work despite having a brand new, dealer installed alarm ECU/siren unit. I DHL'd my two remote boards to him. He decoded both and sent them back to me along with instructions on how to unlock the receiver. I was able to use the code he supplied from the working remote to unlock the receiver and program in the second remote. Once this was done the alarm module sprang to life.

I now have two fully functional remote fobs, a fully functional alarm system with codes to program in any new fobs in the future. The car now has a working remote central locking/alarm system that works as it did when the car left the factory.

Giallo helped me every step of the way and wouldn't accept payment until I had received my boards back in Johannesburg AND had them all working correctly.

I cannot thank him enough for his assistance and saving me a truck load of money.
aero_mati
Hi Giallo,
I have a problem with my alarm remote control (black IR TRW one), I got the car a month and a half ago, the control wasn't working, so I replaced the batteries and it didn't work. The IR LEDs are constantly on, I opened up the remote and it all seems ok, the capacitor looks alright and the switch/button doesn't seem to be stuck. Has this ever happened to you? Do you know what might be the problem with it?

Cheers
GialloEvo94
QUOTE(aero_mati @ 28th September 2016 03:12) *
I have a problem with my alarm remote control (black IR TRW one), I got the car a month and a half ago, the control wasn't working, so I replaced the batteries and it didn't work. The IR LEDs are constantly on, I opened up the remote and it all seems ok, the capacitor looks alright and the switch/button doesn't seem to be stuck. Has this ever happened to you? Do you know what might be the problem with it?

Not easy to tell without being able to do some electronics diagnostics on the circuit. It could be anything from a faulty microswitch to a short circuit somewhere on the board, or even a fault with the on-board microcontroller chip.

Do you have a multimeter? If you do then the first thing I would do is a continuity check across the microswitch legs. While the microswitch may look and feel OK it's possible that internally it has a short circuit.
aero_mati
QUOTE(GialloEvo94 @ 28th September 2016 07:58) *
Not easy to tell without being able to do some electronics diagnostics on the circuit. It could be anything from a faulty microswitch to a short circuit somewhere on the board, or even a fault with the on-board microcontroller chip.

Do you have a multimeter? If you do then the first thing I would do is a continuity check across the microswitch legs. While the microswitch may look and feel OK it's possible that internally it has a short circuit.


Today I brought it with me to school (I'm at a technical school) and will check it. That's why I asked you, perhaps you knew what to look for or maybe it's a common problem. We'll see smile.gif
Thanks for your reply

Cheers
GialloEvo94
QUOTE(aero_mati @ 28th September 2016 14:08) *
Today I brought it with me to school (I'm at a technical school) and will check it. That's why I asked you, perhaps you knew what to look for or maybe it's a common problem. We'll see smile.gif

No, it's not a common problem that I've seen before. If there's a fault with the remote it is usually that the IR LEDs just don't work at all and quite often than not that is to do with a dry or failed solder joint on one or more of the IR LEDs legs. Reflowing the solder or completely resoldering the IR LEDs usually solves that particular problem.
aero_mati
QUOTE(GialloEvo94 @ 28th September 2016 12:41) *
No, it's not a common problem that I've seen before. If there's a fault with the remote it is usually that the IR LEDs just don't work at all and quite often than not that is to do with a dry or failed solder joint on one or more of the IR LEDs legs. Reflowing the solder or completely resoldering the IR LEDs usually solves that particular problem.


My electronic professor gave it a look and apparently one of the transistors is acting weirdly. I guess I'll be locking the car with the key for a long time haha biggrin.gif
Cheers
GialloEvo94
QUOTE(aero_mati @ 28th September 2016 21:55) *
My electronic professor gave it a look and apparently one of the transistors is acting weirdly. I guess I'll be locking the car with the key for a long time haha biggrin.gif

Do you have a picture of the circuit board? I assume the offending transistor is a surface mount one?

If you can read the identifier on top of the transistor (it will be a number followed by a letter) then it should be easy enough to get a replacement and swap it out if you have access to a hot air station or a fine tipped soldering iron.
aero_mati
QUOTE(GialloEvo94 @ 28th September 2016 20:33) *
Do you have a picture of the circuit board? I assume the offending transistor is a surface mount one?

If you can read the identifier on top of the transistor (it will be a number followed by a letter) then it should be easy enough to get a replacement and swap it out if you have access to a hot air station or a fine tipped soldering iron.


He wasn't sure, he said that the problem might be the transistor (assuming it's a transistor) or the integrated circuit/chip, he checked the rest of the components and they seemed ok.
[attachment=16998:PSMix_20...23_41_24.jpg]
The transistor is the one between the capacitor and the component that says 102 (don't quite know what it is unsure.gif )

[attachment=16999:PSMix_20...23_41_59.jpg]

Here's a video of what happens when I put the batteries (ignore the background noise smile.gif )

Video

As soon as the batteries make contact with the board the IR leds light up. When the button is pressed the red led lights up as it should and the IR ones become a tiny bit brighter.

On a totally unrelated note, your Delta looks amazing, congratulations!! Definitely my favourite car, together with the F40.

Cheers


GialloEvo94
QUOTE(aero_mati @ 29th September 2016 04:10) *
He wasn't sure, he said that the problem might be the transistor (assuming it's a transistor) or the integrated circuit/chip, he checked the rest of the components and they seemed ok.

The easiest way to test a transistor is to completely de-solder it from the board and test it properly out of circuit. If you do it in-circuit there is a chance that another component on the board will interfere with the test results. I always take them out of circuit to test them.

Fiat used a number of different types of circuits in their infrared remotes but I've managed to find one in my box of remotes that fairly closely resembles your one which is shown in the photo below. The components aren't all laid out exactly the same as yours but the circuit itself does look to be the same with some components just placed in slightly different positions. The transistor I think you're referring to is the "5B" one in my photo. This is a BC807-25 PNP transistor (a datasheet for that is HERE).

[attachment=17000:FiatInfr...lCircuit.jpg]

There are two ways of testing a transistor. The traditional way is with a multimeter. Martin Lorton has a very good video detailing and explaining exactly how to do that HERE on his electronics YouTube channel. The alternative way which is usually how I do it is to use a dedicated component tester like the one I have as shown in the photo below. You just connect the transistor to the solder pads and the on-screen display will immediately indicate to you if the transistor is good or bad.

[attachment=17001:TransistorTester.jpg]

If you can be bothered to try and fix the remote circuit then it is definitely worth testing that transistor (and also the others). Datasheets for the other two transistor can be found here:-
The small black rectangular items with 3-digit numbers on are resistors. The number is a code that tells you what the actual resistance value is.

If all the transistors test out to be OK and the fault actually lies in that 8-pin integrated chip (which is a microcontroller) then the circuit will unfortunately be a write-off and only fit for the bin (or for spare parts).
aero_mati
QUOTE(GialloEvo94 @ 29th September 2016 19:09) *
The easiest way to test a transistor is to completely de-solder it from the board and test it properly. If you do it in-circuit there is a chance that another component on the board will interfere with the test results. I always take them out of circuit to test them.

Thanks for the info, indeed the transistor is the 5B. I may replace it or look for a working board, but for the time being I might just use the key. I just wanted to know what was wrong with it and if it was an easy fix. Don't really want to mess around with it given that I don't know much about electronics (you probably guessed that by now laugh.gif ).

Thanks for your time and help Giallo worshippy.gif

Cheers
GialloEvo94
QUOTE(aero_mati @ 30th September 2016 05:29) *
Thanks for your time and help Giallo worshippy.gif

No problem smile.gif
Benoît
Hi,
I'm Benoît from France.
To start, sorry for my english....
I saw your topic about the programming procedure and you are realy specialized! worshippy.gif
I have an Alfa Romeo GTV 2.0 JTS to 2003(phase 3)

At the beginning the remote control worked properly. But since 1 year, it's not any more the case...
Unfortunately, I don't have 4-digit codes.

To re programming my key, a had to UNLOCKED the remote Receiver, isn't it?
And to do this, en need the 4-digit codes.

Have you got a solution for me?
Do you can "read" me 4-digit codes?

Thank you in advance for your help
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