What is life like with your car? Let us know and win £500 in John Lewis vouchers | No thanks
Clicking noise from the immobiliser
I keep on getting a clicking noise from what I believe is the immobiliser unit box under the glovebox.
The faults include intermittent working of the windows, radio, indicators and window wipers and the central locking.
I have bought a second hand unit from the scrapyard and once replacing the clicking noise stoped but the car would not start, so I re-fitted the old one back and after resetting the key the car started again ok but the clicking noise came back.
I have also bought a new battery but problem is still there.
The faults include intermittent working of the windows, radio, indicators and window wipers and the central locking.
I have bought a second hand unit from the scrapyard and once replacing the clicking noise stoped but the car would not start, so I re-fitted the old one back and after resetting the key the car started again ok but the clicking noise came back.
I have also bought a new battery but problem is still there.
Asked on 3 August 2011 by rammy_clio
Answered by
Alan Ross
The reason it wouldn't start is that the ECU would not recognise the replacement immobiliser.
Sometimes you can try this . Disconnect the battery, refit the second hand immobiliser, reconnect the battery BUT DO NOT SWITCH ANYTHING ON. Leave for 30 mins and then try to start it.
This allows the ECU to re configure itself. It may work.
If not then would suggest you get a auto electrician to look at it (not a mechanic) he should be able to diagnose the fault by testing on the car.
Sometimes you can try this . Disconnect the battery, refit the second hand immobiliser, reconnect the battery BUT DO NOT SWITCH ANYTHING ON. Leave for 30 mins and then try to start it.
This allows the ECU to re configure itself. It may work.
If not then would suggest you get a auto electrician to look at it (not a mechanic) he should be able to diagnose the fault by testing on the car.
Looking for a garage you can trust? Honest John's Good Garage Guide has thousands of reader recommended garages, plus how-to guides and tips on servicing.
The Good Garage GuideSimilar questions
The hot weather is triggering the alarm on my 2009 Ford Mondeo TDCi 140 Estate. It goes off at 10pm and 4am, everything else with the car is fine, and the problem has only started with the heat wave. Do...
I see that you are testing the Renault Kadjar as a long term test car. Have you had the same problems as me or is your press car specially prepared? The alarm constantly goes off and the DAB radio loses...
I have a 2006 Saab 9-3 and the alarm keeps going off. I need to check the batteries in the control unit, but I have been unable to find it so far. I have checked the boot and under both front wheel arches,...
.jpg)
