Engine anti-theft system defective

[rwb]

This dinner time I put the key in and turned it, but the engine wouldn't fire.

Then Com2000 squarks and I get the message "engine anti-theft system defective" and on orange light on dash (a square with a key going into it from the right).

I took the key back out and tried again. It started as normal and everything seems fine.

No trouble since.

wtf is wrong now? Whimsical non-starting is a very worrying problem.

[Captain Jack]

It does it sometimes if you put in a key and turn the ignition on too quickly, it doesn't have time to "register" the code. I had this problem on my D8 which was very intermittent.

[steve_earwig]

Mine's done that 3 times in the last couple of years, just fit the key again and it's ok. I presume eventually it'll let me down in a more apparent manner but I've played with intermittent faults before and it's a mug's game.

[Doggy]

Mine does it too, very occasionally.

Reckon it's got one of those biosensors photocopiers have - you know the way their liklihood of working is inversely proportional to the state of agitation of the user.

[rwb]

OK, panic over. Thank you. That sounds plausible. I'll take my time in future.

[rwb]

Its getting much worse.

It does it every time now, and this morning I had to try for ages before it would start.

Does this sound like a job for a dealer?

My guess is a new battery and a new key barrel which presumably will require some crazy dealer-only coding thingy doing?

I'd prefer that both the thieves and I could start it rather than neither of us.

[steve_earwig]

You should get the battery tested. It's not the barrel you need to change, it's the aerial around it - #1 here:


I don't *think* they need configuring. They're different for multiplex and non-multihex cars, so make sure you get the right one (the one for multiplex cars is about 11 quid from Pug)

[rwb]

Wow. That's really helpful.
The diagram shows the magic number thingy, which I don't have.

Well I've got a new battery. The old one measured OK, but under load the needle went down into an orange area. It had been in for over 5 years and I read (somewhere on here) that D9s are very sensitive to iffy batteries, so I have a new battery.

No trouble yet, but we shall see tomorrow morning: cold starts seem to be much worse than warm starts...

[steve_earwig]

Hopefully that's done the trick.

It's probably a good idea to change the battery after 5 years anyway, these days they don't give you much warning...

[rwb]

Just as bad.

Been to Peugeot (which was an exceptionally unpleasant experience). It was the aerial. £140 all done.

[neildavies]

Had it on my coupe, about 3 times in 4.5 years of owning it. Crapped 'em first time it happened, but then realised it was another randome Peugeot message that comes and goes.

[FarmerPug]

random peugeot messages, always a problem, never something good to say
wait a second, ive taught my mfd some manners:

[rwb]

Had it on my coupe, about 3 times in 4.5 years of owning it. Crapped 'em first time it happened, but then realised it was another randome Peugeot message that comes and goes.

Oh please don't say that, you've got me worried again now. Still, 3 times is rather different from every time you turn the key.

[Archangel]

random peugeot messages, always a problem, never something good to say
wait a second, ive taught my mfd some manners:

nice one LMAO

[Archangel]

It does it sometimes if you put in a key and turn the ignition on too quickly, it doesn't have time to "register" the code. I had this problem on my D8 which was very intermittent.

This is on a D8 as well every model would that be ( mines 1997 GLX )