Ignition warning light stays on

Hello All,

I don't know if anyone has had experience of the same or a similar problem
to the one I'm having, if so they may ne able to help. The ignition light on
my M regd (1994)peugeot 405 1900TD stays on when the ignition is turned off
and the key has been removed from the switch. Jump leads will not start the
car but after 4 days of charging the battery did. Leave the battery
connected for a short while the light comes back on, disconnect the battery
the light comes on on reconnection but goes off as soon as the car is
started. I thought at first this was an alternator fault but the alternator
is charging.
Can anyone please give me an idea of what the problem may be and how to
rectify it?

Thanks in advance
Regards
Dave

 

By ignition light do you mean the illuminated symbol of a battery (red
i believe?)

This tells you that your battery is not being charged fully (though it
may/may not be charging enough to still work. ) That probably means
your alternator is packing up (but not completely) - I'd buy a cheap
volt meter (multimeter) or borrow one and measure the battery voltage
with the engine running - below 13v and you have a problem.



Are your jump leads v.cheap? If so they wont work.

 

The jump leads are good quality ones and I have used them on numerous
vehicles. The light I mean is the red battery light but it does not stay on
when the engine is running. If I turn the car off altogether and remove the
ignition key and leave it for a few minutes the red battery warning light
comes on again.

Thanks for the advice
Regards
Dave

 

A friend of mine with the same car (405 1.9TD) had exactly the same
problem last week.

It turned out to be the alternator. There are 2 diodes in the
alternator, which you can't get into, and they failed. This causes a
short circuit and this is why you get a red battery light.

A new alterator is required - should be able to get one for 40 quid.

 

Thanks for that Blister, looks like a trip to the scrappy then. I aren't
intending keeping the car after it runs out of test in February so I don't
intend to spend much on it if I can help it.

Regards
Dave

 

40 quid?? i wish they where that cheap. i payed £95 for mine and it is
120 amps output.