Ign warning Light on with no key in

[N.Daynes]

Hi,

Not sure if anyone can help, But my ign light is on but I don’t even have the keys in the Ignition. it starts and runs ok. I have fairly recently had an Alternator fitted and they replaced the relay box with a dummy one that has no internals. But the pick-up has ran perfect since them.

Hope someone can help.

Nick

[PAULJ]

if your ignition light is on with no key in, it an indication that the alternator is faulty. Where did yours come frome. Is it new ?

[bmcecosse]

They have wired up the 'Ign' light incorrectly - and why did they change the Regulator? Best to just leave it in place!! Take the car back to them - and refer them to the extremely simple diagram at the head of this section......

[N.Daynes]

Thanks for that, The alternator was fitted buy Nacton Auto electrics in ipswich. they are very good and have done loads of work for me in the past, So I shall call them tomorrow & arrange for them to look at it.

Thanks again

Nick

[bmcecosse]

They obviously are NOT 'very good' if they left you with the IGN light on all the time ! Does the alternator actually charge the battery??

[PSL184]

I had this once on a Land Rover. The regulator in the back of the alternator had gone faulty and was feeding back to the ign light all the time.....

[N.Daynes]

thanks everyone, I took the car back today and they found that the alternator was faulty, don't know how it failed.

I was wondering if it could have anything to do with the other garage i took the car to about a week afterwards to get an Accuspark dizzy fitted?? They fitted one, but it wouldn't run smoothly. I got them a replacement and that still didn't work. I was then sent replacement internal parts but in the end they put the standard one back in and said they could not fit the electronic one.

Thanks

[bmcecosse]

Well - I would avoid them like the plague! Swapping a dizzy is the simplest thing in the world........ And why should the alternator have failed - did they comment on what was wrong with it?

[PAULJ]

Its likely to have been a diod short in the rectifier. It happens but not on a new one. Someone will be allong soon to tell me Im wrong.

[bmcecosse]

Yes - that is the fault - but how did it happen is the question here.......

[PAULJ]

If I rember from my electric lessons the diod pack will short if you reverse polarity

[bmcecosse]

Exactly (or perhaps by running the engine with no battery connected) - but I didn't want to accuse the 'garage' of that directly!