Engine immobiliser fault 2005 206CC 1.6 petrol

[Gutterfighter]

Hi

I'm new to the forum but I hope somebody can help pls. My girlfriend recently (2 weeks ago) bought a 2005 1.6 petrol 206 CC. We were initially having some problems with an intermittent starter motor. It normally worked fine when the car was cold but would just "click" when warm.

However, on Friday, the situation bacame more problematic and frustrating. We could not get the starter to work at all and the car was left stranded by the side of the road. I called out the RAC and he noticed that the engine immobiliser fault was coming up on the dash screen. This is the first time that had happened but I wonder if it was to do with the battery going flat? Anyway, we got it towed home. The next day I went to try the car again and it was turning over but there was no petrol/spark going to the pugs. It has since gone into Economy Mode.

The key phob seems to be working fine, opening the doors, switching the alarm off and working in the ignition etc. The RAC man ran a diagnostic and he said that the ECU was not responding although it seemed to be powered up. From reading various other posts on here it seems that it is either a dodgy earth/connection from the fuse box to the ECU or something to do with the immobiliser unit. I have checked all wiring contacts and there are no obvious breaks but I have not checked all of the wiring.

Any suggestions in terms of what I should try first so that we don't get stung with an expensive bill just 2 weeks after buying the car (Private sale so no warranty sadly. . .). I was thinking of getting a mobile auto elcetrician out to test the wiring network but am I wasting my time and does this need to go to Peugeot to upgrade software or something?

I'm based in Liverpool.

Thanks.

[GrandadMonkey]

Fairly common fault. New starter motor required by the sound of it. That should sort it.

[Gutterfighter]

Thanks. I think the starter motor is one problem but what is the engine immobiliser fault? At the moment I can get the engine to turn over (i.e. starter motor is working) but the ECU is immobilised as no fule or spark. It is crazy. Is there an easy way to test the aerial transponder in the ignition lock?

[GrandadMonkey]

If the original fault was to do with the starter motor. I would sort that out first. However have you checked the battery? On 206cc spurious faults and warnings often appear when the battery needs renewing. Use the search facility on this forum to learn about starter motor and battery issues.

Bear in mind that if it is the original battery on the car then it is nearly 8 years old and could need replacing with new. I'd get it checked. The battery on a 206cc is taller than the one for the hatchback, so make sure you get the right one if you do replace it, otherwise you'll have more problems. Surprisingly, Peugeot dealers can be very competitive on price for 206cc batteries.

I know nothing about immobilisers, or how to test the ignition transponder - sorry. They used to go wrong with early 206's but yours is more recent at 2005.

Oh, and make sure you read the owners manual front to back - otherwise I'll bet you'll be back with problems with your roof.

[Enright]

I've noticed that there seem to be a lot of problems with Pug 206 CC starter motors not working when the car gets warm.
On a previous (different model) car I found that the starter motor developed an intermittent fault, which was simply caused by the big copper bar that bridges the terminals in the solenoid having become pitted from the arcing. All I had to do was disassemble the solenoid (which was only bolted together), and turn the bar over to the unused side. Hey presto - new starter motor!
This sounds suspiciously similar and it might be worth investigating to see if it solves your problem without a lot of extra expense. If it doesn't, at least you haven't lost anything - in fact you've got the replacement job half done already.

[Capncol]

Neil. It's a well known internal fault. Changed a few of them now, including one of our own.

[Enright]

Oh right. Sorry - I just dip and out as I see things that I can relate or might be able to contribute to.
Thought it might help.
is there a stcky or a How-To somwhere that already covers it?

[Capncol]

Not sure there's a sticky, but a search for hot start problems should bring it up.
I have had probs with that solonoid to starter link on other starters so I know where you're coming from.

[Gutterfighter]

Thanks folks. Any suggestions re the immobiliser and economy mode issue?

[GrandadMonkey]

Cure the basic problem first and you'll probably find that'll cure those issues.

See post by reap » 07 Jan 2009 10:15 pm

http://www.peugeot206cc.co.uk/viewtopic ... 23&t=11078

Over and out.

Good luck.