bypass the immobiliser

[mdibb]

hi all,got a big problem at the minute,need to get my car started but the immobiliser has stopped working,so i cant open my car with the fob,and i cant start the car,could somebody please tell me how to bypass the immobiliser to be able to start my car ?
thanks a lot for any help.
cheers

[richardsneddon]

what circuit is it immobilisng do you know? what alarm is it?

[mdibb]

im not too sure mate, i know its a cobra alarm if thats any good ?
cheers

[richardsneddon]

well when you try and start it does the engine turn over or not? Other than that you will need to get someone to have a look at it or even take it out

[mdibb]

no mate,it does not turn over at all,totally dead ?
cheers

[Welsh Dan]

If you cant open the car with the fob, are you sure it isnt the battery?

[mdibb]

definately not the battery,tried that one mate ?
cheers anyway

[richardsneddon]

wait and see what the others think but it could be the starter immobilised in which case you may be able to trace the wires from the alarm to the starter B'cos i thot an immob. would just intercept an existing connection and take it via the alarm unit So in effect u just want to join the wires together again i think

[Adam]

Depends on whats immobilised.
Why wont the alarm turn off tho?

Fob battery flat?

[mdibb]

tried fob battery mate

[Adam]

Do you have a spare fob?

[richardsneddon]

Is the alarm got power to it?

[mdibb]

mo i dont have a spare fob and yes the alarm does have power to it ?
thanks a lot

[richardsneddon]

sounds odd the fob must be broken then maybe try and get a new one

[mdibb]

ok mate thanks a lot

[richardsneddon]

where abouts in the world are you?

[mdibb]

im in bradford,west yorkshire

[richardsneddon]

if you was a bot closer i might of been able to have a wee look sorry

[mdibb]

ok mate no problem,thanks a lot for your help anyway

[Welsh Dan]

Our alarm (crappy laserline one) came with a small key which we can use to reset or disable the alarm, do you have something similar?

[mdibb]

Our alarm (crappy laserline one) came with a small key which we can use to reset or disable the alarm, do you have something similar?

i do have a key which i got when i bought the car but i didnt know what it was fow ? where does the key go ?
thanks a lot

[richardsneddon]

have a look on the alarm

[Adam]

Some have a bypass key on the back of the siren unit.

How do you know the alarm is getting power to it?
If all seems fine alarm wise, then it could just be a knackered key fob.

[mdibb]

Some have a bypass key on the back of the siren unit.

How do you know the alarm is getting power to it?
If all seems fine alarm wise, then it could just be a knackered key fob.

i was told the alarm was fine,but just been outside to check it over and there is no power to the alarm as far as i am aware,also there is no key on the back of the siren unit.

any ideas what i can do next ?
thanks again lads for your help

[richardsneddon]

find out what wire needs power And reconect it but check the earth before any others Otherwise you will just have to try and figure out where the wire for power is connected i think they normally do it in the fusebox i think!

[studaman21]

have a look around the ignition barrel for new wires. you should be able to notice if theres any immobiliser wires added to the circuit

[richardsneddon]

or even check for an inline fuse somehwere off the loom it may have blown

[studaman21]

if you have time on your hands you can take the whole alarm out and re wire it back to standard. it took me about 4 hours cos my lazerline alarm shorted out and i had to use my car till i got my clifford.