Engine Immobiliser Not Allowing Me To Start My Car ?

[geetea-are]

Hello, I have an aftermarket alarm and immobiliser fitted to my r32 gtr, and I believe the immobiliser is consistently stopping me from starting my car, If i havent driven it for any longer than 2 hours there is a chance it wont start, or will take about 15 goes to start, When I say goes i mean turn the key remove it and repeat, I thought it was my battery but the voltage over a week only fell from 12.35 to 12.25, please help its really annoying

[danielr34]

Hi,

When you go to start the car (turn the key) does the engine crank? Or do you get nothing at all? When you say it takes 15 or so goes to start the car, are you pressing a remote? or swiping an immobiliser tag attached to your key ring? I ask this because the R32 does not have a factory immobiliser as standard, so if there is one, it would be an aftermarket one, which means there should be a device to disarm the immobiliser when it has armed (ie remote, Transponder Tag, Touchkey Tag etc). If you have nothing but the Nissan key and it takes you 15 or so goes to start your car by removing the key and retrying each time leads me towards your starter motor and the first question I asked. If it does not crank at all or you hear a click sound when you go to crank then either the trigger wire to your starter motor solonoid is not make good contact and needs to be unplugged cleaned (light sand paper job) and then plugged back in. Easy job! If it makes no difference after cleaning the contacts of the trigger wire then it may be the starter solonoid itself. Over the years they can develop dirt and grit internally which can cause the solonoid to be stuck or jammed. To test this you need someone to be at the key testing to see if it cranks while someone else taps or hits the starter motor solonoid area with the handle end of a hammer (preferrably a hammer with a rubber grip or wooden handle). If it decides to start cranking as a result of this then remove the starter motor, pull it apart and wash the internals with a liquid solvent (petrol and a paint brush) dry it up, put back together bolt back up to the car. OR have it reconditioned by Auto Electrician.

If it cranks over but does not fire (start) then it is another problem all together. So you would have to get back to me on that.

[geetea-are]

thank you for the reply, the car has a button immobilser in order to open and start the car you need to press it, if you try and start it without pressing the button the alarm goes off and this red led installed on the dash flashes. When I bought the car last november it was meant to have had a new start motor installed with the rebuild but who knows.

The car doesn't crank at all when I do it, but I do hear the clicking noise!

[danielr34]

try the starter motor test I mentioned

[geetea-are]

awesome will do, I started it first go today after leaving the car for a week with the battery terminal off?

[geetea-are]

by the way Daniel, I got the car working perfect each time, one of the bolts on the starter were missing, thank you