LeeMac

iTrader: (1)

How can I enter a new code without knowing existing code?

mikeyboi

as long as you have a working key fob you can do it, im assuming this is the standard sigma alarm the M30 off the top of my head it sounds quite simple but i tried once and couldnt manage it but took a few tries and got it done see below:



If you find that one or more of your Sigma M30 alarm remote controls that came with your car are not working then you might need to reset or reprogram them. This article assume that the alarm remotes are working and they are the ones that came with the car/system. If this is the case then you will need to follow the procedure below with both remotes:
Reprogramming Procedure

Arm and then Disarm the system using the working Radio Key.
Within 30 seconds of disarming, type into the keypad- *17856*91*2# where 2 is total number of radio keys to work the system
Briefly press both radio keys in turn (the dash board LED will flash each time and the siren will bleep) Any radio keys not programmed here will no-longer operate the system.
You should now be able to arm and disarm the system using all the radio keys programmed.

When using the keypad always observe the following points:
The PIN number should not be entered too quickly or too slowly - when a digit has been pressed the small LED built into the keypad will illuminate briefly as confirmation and only then should the next digit be entered.
If an incorrect digit is pressed or the delay between entering digits exceeds 10 seconds, then the LED above the keypad will flash rapidly and the PIN attempt should be abborted and started again after 30 seconds.
Due to the small size of the keypad some users may find a rubber tipped pencil easier to use. DO NOT use the sharp tip of a ball point pen etc, or press excessively hard on the keypad as this will only damage the membrane and cause a digit to remain pressed, causing a continual incorrect PIN.
The keypad allows only THREE PIN attempts and then will “Lock Up” if an incorrect number is entered a third time. This is a security feature to prevent random PIN attempts disarming the system.


If the remote(s) still don’t work then there are 3 possible reasons:
The remote battery is flat (the built in LED takes very little current to illuminate it and is not an indication that the battery voltage is healthy).
The remote is damaged or faulty.
It’s the wrong type of remote for the M30. There have been a number of Sigma remotes over the years that operate on different radio frequencies and use different encryption methods. The correct remote for the M30 is the AC38. This remote is easy to identify as it has a round battery “pod” on the rear of the remote with a screw-off cover.

mikeyboi

hope that helps bud, dont loose your fobs without a code by the way cause unless the origional code is held by subaru (dealer) you have to get an entire new alarm ecu which is around the 250 quid mark yeah i ended up there but after that ensured i had the code and 2 brand spanker fobs but if you get to that point my opinion would be get an aftermarket alarm far cheaper and better features tbh

good luck mate Mike

mikeyboi

bollocks copied the wrong page haha hold on...

LeeMac

iTrader: (1)

Cheers

My remotes do work. I just don't have the code for the keypad

mikeyboi

here lol go to this link
http://www.scoobypedia.co.uk/uploads...m30_manual.pdf

scroll down to page 9 (bottom of each page) shows you exactly what you need to do also gives you everything you need to know

LeeMac

iTrader: (1)

yeah, got that manual, thats if you know the code. Suppose I will have to try Subaru

mark3scooby

iTrader: (1)

Try this method, I used it and it worked for me...With the ignition switched OFF "arm" then "disarm" the system
within 30 seconds enter the following:
*17856
*92
*ABCD
*ABCD
# (stores the new pin and you should hear a chirp)

Where ABCD represents the newly chosen 4- digit pin code.
The numbers *17856 causes the system to enter programing mode and 92 is the access code/comand which notifies the alarm unit to accept the new pin code

the new code needs to be typed in twice as confirmation..

LeeMac

iTrader: (1)

will give it a go

edit - Worked, thanks

found a doc with all programming info - here