2006 Ford Fiesta 1.6 Zetec immobiliser problems
Discussion
Hi Guys,
Can some one please help?!. It seems that my car has an intermittent problem, most of the time it starts ok. When it doesn't, I unlock it with the key and try and start it and it won't start as if the battery is flat but If I put a meter across the battery it gives 13 volts and if the car is running it increases with the revs intimating that the alternator is also good, not only that the battery has a view window indicator which shows green and therefore is telling me that the battery is in good nick. it would seem that it may have something to do with the immobiliser. If the battery were flat in the key would the key lose it's code?. It unlocks from a distance of about 10 meters ok and the sidelights come on and the interior light comes on and the immobiliser light flashes every second as specified in the handbook. The only other thing that it does is when you lock the car the dash info panel stays lit (Green LED) and the radio panel also stays lit but goes out after about 5 mins. I have had the car for about 5 months and it has been good as gold, this problem started manifesting itself about a month ago. If I charge the battery the car will start for about 3 times then it will go flat. Anyone got any ideas please before I torch it at the side of the road, only joking!!.
Thanks in advance for any help
Can some one please help?!. It seems that my car has an intermittent problem, most of the time it starts ok. When it doesn't, I unlock it with the key and try and start it and it won't start as if the battery is flat but If I put a meter across the battery it gives 13 volts and if the car is running it increases with the revs intimating that the alternator is also good, not only that the battery has a view window indicator which shows green and therefore is telling me that the battery is in good nick. it would seem that it may have something to do with the immobiliser. If the battery were flat in the key would the key lose it's code?. It unlocks from a distance of about 10 meters ok and the sidelights come on and the interior light comes on and the immobiliser light flashes every second as specified in the handbook. The only other thing that it does is when you lock the car the dash info panel stays lit (Green LED) and the radio panel also stays lit but goes out after about 5 mins. I have had the car for about 5 months and it has been good as gold, this problem started manifesting itself about a month ago. If I charge the battery the car will start for about 3 times then it will go flat. Anyone got any ideas please before I torch it at the side of the road, only joking!!.
Thanks in advance for any help
Remote locking and immobiliser are separately controlled.
Remote (battery powered) controls the locking.
The immobiliser is controlled by a chip in the key and is not powered by the battery, it is energised by the car when you turn the key in the ignition.
"If I charge the battery the car will start for about 3 times then it will go flat" indicates to me at least it is knackered.
I would try a new battery, check that the alternator is charging, should be putting out 14 V, and check for a parasitic drain.
Remote (battery powered) controls the locking.
The immobiliser is controlled by a chip in the key and is not powered by the battery, it is energised by the car when you turn the key in the ignition.
"If I charge the battery the car will start for about 3 times then it will go flat" indicates to me at least it is knackered.
I would try a new battery, check that the alternator is charging, should be putting out 14 V, and check for a parasitic drain.
rodmcleod said:
If I charge the battery the car will start for about 3 times then it will go flat.
Are you saying that once the symptoms of a flat battery occur, the only fix is to charge the battery? If so that points to the battery really being flat despite what your voltage measurements seem to be telling you.Matt_E_Mulsion said:
A car battery cannot show 13v at rest, are you sure you meter is correct.
Anyway I'd start by replacing the battery, although with your scant information it's all guess work.
How are you measuring 13v?Anyway I'd start by replacing the battery, although with your scant information it's all guess work.
A car battery can't show 13v.
It is 6 x 2.11v cells in series so its maximum is 12.66 volts at rest.
If you are using an analogue meter throw it away & get an el-cheapo digital meter.
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