Technical Immo problem

[Alex44]

Hello guys
Im new here and i have one fiat grande punto 1.9 jtdm
The problem with is the immobilisator,sometimes working somentimes no.
The strange thing is,if i get off the one relay from the fuse engine box(one from right top-black) the immo is reseting and i can start the engine,but the ventilation should to be at 1 speed. If the ventilation is on 0,the immo sign will be in dashboard and i cant start the car,or if the car is running and the ventilation is on 0,i cant stop the engine. Is working only on the 1 speed of ventilation.
Sometimes light beam is not working if you turn on after start the engine,if working only if you turn on before start the engine....
What is the problem with this car please ?
Thank you,
Sorry for my language

 

[varesecrazy]

Hi Alex. And welcome to FF


It sounds like you have some electrical problems..

Do the test with a new earth cable.

You are obviously using the interior fan motor switch. to gain an electrical circuit in the rest of the car...

(With the mk2 punto a fan switch wiring fault would turn on the lights..)

Start here:https://www.fiatforum.com/grande-punto/318839-electrical-gremlin-thread.html


Charlie

 

[Bernievarian]

Agree with Charlie: typicall earthing issue !!

Bernie