Important! : Immobiliser Assistance Needed - Saxperience

Cozy · 16th April 2018, 19:51

Good Evening everyone,

First post so please be gentle with me! I'm hoping someone out there can help.

We have had a family member recently pass away and have inherited a Citroen Saxo that had been garage stored for a number of years. We have fitted a new battery and found that the car has a keypad immobiliser.... the problem is no one knows the code and despite our attempts with guesses we've been unable to disable it.

I've spoken with our local main dealer and been told that there is no way to recover the code or reset the immobiliser/ECU.

Is there anyone out there that can advise (privately if need be) - how to either recover, reset or bypass the immobiliser so we can put the car back on the road and move it?

Appreciate any help or advice that can be given, thanks!

MartinObviously · 16th April 2018, 20:49

Quote:

Originally Posted by Cozy

Good Evening everyone,

First post so please be gentle with me! I'm hoping someone out there can help.

We have had a family member recently pass away and have inherited a Citroen Saxo that had been garage stored for a number of years. We have fitted a new battery and found that the car has a keypad immobiliser.... the problem is no one knows the code and despite our attempts with guesses we've been unable to disable it.

I've spoken with our local main dealer and been told that there is no way to recover the code or reset the immobiliser/ECU.

Is there anyone out there that can advise (privately if need be) - how to either recover, reset or bypass the immobiliser so we can put the car back on the road and move it?

Appreciate any help or advice that can be given, thanks!

Hello

If you've entered the code wrong 3 times, the keypad will remain locked. turn off the ignition. turn it on again for 1 minute. Then turn it off and leave the car for at least 30 mins.

The factory default code is 1111. Pray it has never been changed lol

If that doesn't work, then you need an unlocked ECU for the car.

When you turn on the ignition, ONLY the red light should be on. If both red and green lights are on, there is a fault.

The green light only means the system isn't active and the car can be started.

Chipwizards · 16th April 2018, 20:59

What model is it? Some of them can have the immobiliser removed from the ECU.

Also, have a very good look at the buttons on the keypad. It's often obvious which buttons have been pressed repeatedly because they wear thinner on the black rubber.
The code is four digits so you have a limited number of options. See if the numbers are part of a date of birth for example, something a person wouldn't forget.

Cozy · 18th April 2018, 16:54

Thanks for the responses!

We've tried numerous numbers that we think may have been used but unfortunately not been able to disable the immo.

The car has been garaged for years now, and has extremely low mileage so hasn't been used through it's life, hence the wish to put it on the road and not scrap it, but as it hasn't been used the keypad isn't really showing any signs other than potentially the number 3 of being pressed.

I had a guy I know with some OBD kit try to plug computer onto it but this didn't seem to want to talk to the car either (it's a 30pin plug so pre-standard OBD connections) and when we got the right plug the various bits of software he tried wouldn't work.

I have a single red light on the keypad, after three attempts this starts to flash and I get a continuous Beep which we have to reset by disconnecting and reconnecting the battery or keypad connection.

Really stuck now! If anyone has any other ideas (or even a suitable ECU) please let me know.

Cozy · 18th April 2018, 16:57

It's a Citroen Saxo VSX 1.4 1998, ECU is a Mag Marelli IAW 1AP.40 and keypad has 343470-07 on it... if that helps anyone!

MartinObviously · 18th April 2018, 17:36

Wayne (Chipwizards) I'm sure can remove the immobiliser from that ECU.

That will do away with the need for a keypad. I'm sure he'll be back!

Chipwizards · 19th April 2018, 20:59

Chuck the ECU in the post and I'll sort it for you.

You'll need to unplug the keypad before you plug the ECU back in.

If you REALLY want it (the keypad) working you'll have to unplug the keypad, fit the ecu, turn the ignition on, plug in the keypad then reset the PIN code. DON'T turn the ignition off with the keypad connected unless you have already reset the PIN code, or you'll be back to square 1 again.

Chipwizards
Unit 3 Victoria Way
Rawtenstall
Lancs BB4 7NY

Cozy · 19th April 2018, 22:06

That would be fantastic Chipwizard! I'm happy to drop it by (your only an hour away from where I live by the looks) and bung you a few quid or a crate or two of beer!

Would be happy not to have the keypad functioning and just disable the ECU if it's easier as they seem really annoyingly fiddly!

Cozy · 19th April 2018, 22:09

Sorry should have said disable the Immobiliser not the ECU!

Chipwizards · 21st April 2018, 09:51

No worries.
I'm actually working tomorrow (Sunday) if you want to come then?
There's no sign on my building but I'm next door to 'Quantum Air Technologies'.

Cozy · 23rd April 2018, 22:00

Sorry Chipwizards - just seen your post!

The cars still stood, I'll take it off the car tomorrow and pop it in the post to you.

Does/is the keypad needed too? does that store a code or is it the ECU only that stores it?

Chipwizards · 24th April 2018, 19:18

I might be able to read the code out of the keypad if you want to send the both of them?

Cozy · 12th May 2018, 16:28

Hey Chipwizards,

I sent the ECU out to you, so hopefully you've got it (with a covering letter).

Let me know what you think! Thanks

Cozy · 21st May 2018, 21:06

Hi Chipwizards!

Hopefully ECU has made it to you, I sent it a couple of weeks back, let me know what you think!

My parents are asking when they can have their driveway back.

Thanks

Chipwizards · 21st May 2018, 22:06

I've done it today, bench tested it and all seems good.
I should get it posted out tomorrow afternoon once the mapping job I've got in is done.
You'll need to unplug the keypad to stop it re-immobilising itself.
:-)

Cozy · 6th June 2018, 10:27

Received with thanks Chipwizard! Will get it put on over the weekend and give her a whirl.

Have you removed the pin code completely or just reset it to factory?

Will get a token of thanks in the post to you! You're a star.

MartinObviously · 6th June 2018, 18:17

Quote:

Originally Posted by Cozy

Received with thanks Chipwizard! Will get it put on over the weekend and give her a whirl.

Have you removed the pin code completely or just reset it to factory?

Will get a token of thanks in the post to you! You're a star.

Just chuck that keypad in the bin, I think that would be best

Chipwizards · 7th June 2018, 21:25

Quote:

Originally Posted by Cozy

Received with thanks Chipwizard! Will get it put on over the weekend and give her a whirl.

Have you removed the pin code completely or just reset it to factory?

Will get a token of thanks in the post to you! You're a star.

At the very least unplug the keypad if you don't know what the code is.

Otherwise you'll be back to square 1.

:-)

Cozy · 15th June 2018, 19:47

She's alive!

Thanks Chipwizard - beer should have landed with you this week

Chipwizards · 16th June 2018, 10:25

It did thank you.

Glad the old girl still lives. :-)