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Water increase and BCU/ECU issues


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Hi Guys,

This is my first post and unfortunately it is asking for help.

Let’s start from the beginning. I am having issues with my 05 Boxster 3.2 S.

After A LOT of rain the other night I went to my car in the morning to my horror the rear boot was open, brake and reversing lights where on, and the windows where down.

The battery was flat as you can imagine, on getting the car started it has thrown loads of errors out of the BCU/ECU and things have stopped working.

·
Rear spoiler fault

·
PSM fault

·
Unable to open rear boot or front boot from switch in car

·
Unable to open rear boot at all

·
Roof won’t work; think it’s the sensor that detects if the latch is unlocked.

·
Brake lights on all the time

·
The part of the boot which the roof goes into, the relay for the lock is clicking every 5 seconds or so.

After further investigation there was A LOT of water behind the passenger seat. The car is sat open in my garage drying out at the moment.

The car drives perfectible and all other functions work, PCM and climate control for example.

Does anyone have any ideas on what I can do to try and get my car working again?

Thanks for your help guys

Simon

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  • 1 year later...
  • 7 months later...

I had the same problem, rear lights on, spoiler not working, roof not working, mine even started moving the roof by itself while I was trying to remove the left hand seat to get at the unit.

I bought a new rear control unit from Porsche and coded it up with a durametric which I bought for just this kind of eventuality.. and everything seems cured.. However I still have a problem of the clamshell on the roof not closing the last couple of inches when the roof is up, even though it closes 100% down when the roof is down.. Nothing seems bent, the transmissions for the roof are running until they hit their microswitches, and the whole thing seems perfect apart from this clamshell issue.

So I have asked the question in another post of what could have caused my problem... It could be that I missed something on the coding, or there is something the Durametric can't do in the coding... So I would say you could replace the rear control unit yourself and then get a friendly Porsche enthusiast with a Durametric near you to code the unit.. However, I would hold fire on that until I know if the Durametric really can do it and allow you to have a fully functioning (and closing) roof clamshell!

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