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Old 08-12-2019   #1
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Exclamation Stilo 1.6 security system failure loose connection.

Dear All, it's been a while since I've posted on here as the Stilo had been going ok..........
I'd fixed the panoramic roof and it worked for a while then it tried to open all by itself when it was frozen it broke again. I have the parts to do yet another repair but I'm losing the will tbh.
Recently, the starter motor went so I replaced that with a good secondhand one and it sorted it......
About a week ago I had an engine management light come on the dash and remain there yet the car was driving and performing well. Then it cut out at a junction in my home village (luckily) and would not restart. The fault codes read, asr, esp failure, security system failure, loose connection. The starter motor was spinning, it just wouldn't fire up. Towed it home.
Checked and cleaned all engine bay connections.
Tried a different battery.
Checked ECU for bad solders or pins etc.
Swapped T08 relay.
Checked key sensor ring connection.
Tried different key and changed battery in key.
Changed alternator for supposed good secondhand one.
Now, when I try to start, I still get he same fault messages, car just clicks when I try to start it which will be the starter motor solenoid pushing the gear to mesh with flywheel, but not spinning and sometimes it doesn't click at all.
I'm wondering it my battery has gone, although when I connect to a charger it is fully charged again in a few minutes.
Could my starter motor have failed again as it was a secondhand one, or is my alternator a bad one?
Or is it the dreaded ECU??
I'm literally at my wits end with this car now and I'm very close to calling it a day as I've thrown a lot a time and money into it already and I'm losing the will to continue.
I'm tempted to scrap her and cut my losses?
Oh and I have a launch CRP123 vehicle diagnostic scanner which I have connected to her but it fails to connect with the ECU for some reason and gives a 'CAN' bus error so it's obviously not communicating with it or its not allowing it to?
Does anyone out there have a solution to this or is interested in taking the car off my hands then please let me know.
All the best,
Cali
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Old 08-12-2019   #2
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Re: Stilo 1.6 security system failure loose connection.

Quote Originally Posted by CALI View Post
Dear All, it's been a while since I've posted on here as the Stilo had been going ok..........
<SNIP>
Could my starter motor have failed again as it was a secondhand one, or is my alternator a bad one?
Or is it the dreaded ECU??
I'm literally at my wits end with this car now and I'm very close to calling it a day as I've thrown a lot a time and money into it already and I'm losing the will to continue.
I'm tempted to scrap her and cut my losses?
Oh and I have a launch CRP123 vehicle diagnostic scanner which I have connected to her but it fails to connect with the ECU for some reason and gives a 'CAN' bus error so it's obviously not communicating with it or its not allowing it to?
Does anyone out there have a solution to this or is interested in taking the car off my hands then please let me know.
All the best,
Cali
If the starter is engaging but not spinnig it is most likely a faulty replacment starter. A bad connection, especially earth(s) or weak battery is alo possible.

Have you done any voltage checks?

Robert G8RPI.
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Old 08-12-2019   #3
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Re: Stilo 1.6 security system failure loose connection.

Hi
This all sounds very similar to a problem I had with a 1.4 16v Stilo. Never read the codes with a reader, but had "Check vehicle protection system" message coming up on the dash, but the symptoms you are having now seem to be exactly the same as I had, and I also did the battery, starter etc stuff, but no difference. Sad to say that I never got her to start again (made all the worse by the fact that I had just spent a bit of time and money replacing the gear box) and she's still sitting on my drive as a spares car for my other Stilo.
Only thing that I can think of that might be of some use to you is that there was someone on here who also had the same thing or something very similar and traced the problem back to, I think, a single chafed wire, in that case he had done a whole lot of work beforehand including replacing the ecu if I remember correctly - no doubt you will be able to find the message thread on here.
Cheers.
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Old 09-12-2019   #4
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Re: Stilo 1.6 security system failure loose connection.

I did some checks with a voltmeter but didn't really show anything up. It could be a bad starter again although it was spinning ok when the fault first occurred.
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