JDM Alarm fob
wondering if anyone can steer me in the right direction. On a JDM Impreza. I’m lead to believe the alarms are retrofitted. My fob has recently been intermittent so changed the battery (tear shaped fob with 2 buttons on it). After placing a new battery in it there was a visible red illuminated light. However the fob will not unlock the central locking. At present the car is secure. When I last drove the physical ignition key worked fine. So I’m sure that’s not an issue. I don’t believe I need reprogram any keys etc (not even sure if the JDM has the internal touch pad but I believe not). Anyway to my point! Anybody got any advice on this. Red light should indicate all good with new battery in the fob???? If I open the drivers door using the key alone the alarm will go off & I then can’t switch it off. Am I limited to an auto locksmith/ mobile alarm specialist to sort for me? Any steers gratefully received as I’m now stuck without a car 😡. Many thanks in advance. |
Sounds like the central locking on the car itself isn't working. If the keyfob disarms the alarm ok then it's doing what it should and sending the signal. My bet would be the drivers door central locking motor or something from the main alarm module not triggering it, broken wire etc.
Your key may well have a transponder fitted so this will start the car if the transponder is present even if your keyfob battery is working fine or not. |
Depending upon year and model your car may or may not have a transponder chip in the key for an ECU equipped immobiliser.
As it's JDM, and you say it has a 2 button teardrop alarm fob, it's probably got some version of cobra alarm fitted rather than the UK installed Sigma alarm to which you allude. https://ae01.alicdn.com/kf/HTB1P4wzD...pg_640x640.jpg Does your actual key have any buttons on it?? |
BPR, Thanks, think I’m a step closer to working it out! Having done a few searches on the wider net the fob with new battery will need resetting to the after market system fitted. I believe (but could be wrong) the aftermarket alarm & fob then takes over as the primary means of activating the central locking & alarm (waiting on confirmation of this). Unfortunately I have no other info as to the after market alarm fitted which doesn’t make it crystal clear which direction I go in. I believe the steady red light in the fob I observed is it telling me it is ready to be reset to the existing system. The fob is already set to the work with the current system but the interrupted power supply requires a reset to reconnect the two if that makes sense. Unfortunately I only ever received one ignition key & one fob when I took ownership of the vehicle. Lesson learned, I kept putting off replacements as they are not cheap via Subaru! Any further input is gratefully received. As and when I get it figured out I will put any relevant info on here for others if they ever find themselves in a similar situation!!!! But again thank you. |
Originally Posted by Don Clark
(Post 12047355)
Depending upon year and model your car may or may not have a transponder chip in the key for an ECU equipped immobiliser.
As it's JDM, and you say it has a 2 button teardrop alarm fob, it's probably got some version of cobra alarm fitted rather than the UK installed Sigma alarm to which you allude. https://ae01.alicdn.com/kf/HTB1P4wzD...pg_640x640.jpg Does your actual key have any buttons on it?? physical ignition key has 2 buttons on them but they are redundant as far as I know. Have never used them to lock/unlock the vehicle & don’t work now if I try. It is a 2003. The image you provided is very similar (if not identical) to my fob & primary means of entering the vehicle & deactivating the alarm. I only use the larger of the 2 buttons to unlock & lock the vehicle. Can you shed any light please? |
Don, Sorry, it is a Blob Impreza. Having just thought about it further, when I sat in the vehicle (previously) for any length of time it would rearm the immobiliser, to get the vehicle to start I would need depress the large button on the fob again & got a very low level audioable click. So I would surmise the fob also deals with the immobiler. That may or may not still require the ignition key to be in the ignition barrel. So I’m short, new battery in fob, steady red light seen in fob (since gone out). I’m starting to think I need work out how to get back to that point (steady red light on fob) then sync fob back to alarm/immobiliser/central locking? Sound plausible anyone!?!?!?!?! Starting to believe that is my issue 😂 (car related at least!!!). |
Originally Posted by Flyingdrag
(Post 12047360)
seat in the car ,push 2 buttons for 8-10s ,red light should be on
push big button once above is how to connect fob to alarm ( youtube is your friend) now should be all good ,big button should arm and disarm alarm plus lock doors small button works as a panic button F:king: |
So thought I would update on this! Cannot resynch key fob to vehicle. It seems ridiculous but my only option may now be to have someone come out, bypass the alarm & immobiliser & then install a new alarm!!!! Not cheap for what started out as a simple fob battery change!!!! Having spoken to a few specialists today this may now be my only option 😡. So word of caution, if anyone else has an after market alarm fitted, either have 2 fobs & never change both fob batteries at the same time or always ensure one is working prior to attempting to switch the other one out. |
Ouch. That's not good. Is it worth contacting the alarm manufacturer to explain and ask what can be done before you go through ripping it all out?
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Yeah strange indeed. I am going to contact Cobra UK but having checked their website they farm work out rather than dealing with direct. Think I’m just unlucky on this one but will persevere with it! It definerly doesn’t want to resynch as it is now! Bugger!!! |
Where in the country are you Mr R666ORY+1?? if in kent i can recommend a very good auto electrician/alarm guy who worked wonders fixing my old alarm when it had a hissy fit
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Originally Posted by Flyingdrag
(Post 12047360)
seat in the car ,push 2 buttons for 8-10s ,red light should be on
push big button once above is how to connect fob to alarm ( youtube is your friend) now should be all good ,big button should arm and disarm alarm plus lock doors small button works as a panic button F:king: |
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