Warning Lights / Brake Failure / SRS Airbag Service
Discussion
Hello all,
Had a bit of a rubbish afternoon - drove my car home from work, top down, all was well. Popped into B&Q quickly, when I got back in the car and start it the craziness begins - red/orange lights, SRS Airbag Service followed by "brake failure" warning, no LCD display, speed/rev/temp/fuel gauges all not working, no fuel gauge, roof not working, radio controls not working.
Tried the battery cutoff switch in the back, no luck - all looks ok for about 30s then goes mad again. When the warning sounds for airbag failure the gauges work again momentarily. Thankfully I only live 5 minutes away so I hobbled it home with no dials. Tried disconnecting the battery for 10 mins then reconnecting - still same problems - all ok at first then lots of warnings etc.
So I've locked the car manually and called Aston Martin Assistance who are sending someone out in the morning to either fix it or take it on a trailer to the dealership. Read a few threads on here and looks like it might be either:
a) Knackered battery (quite possible because I have noticed slow window operation and the hood only works with engine running).
b) Something to do with the "convertible hood controller"
So any opinions or advice? I'm hoping it's just another infamous electrical gremlin and that a new battery will sort it.
Had a bit of a rubbish afternoon - drove my car home from work, top down, all was well. Popped into B&Q quickly, when I got back in the car and start it the craziness begins - red/orange lights, SRS Airbag Service followed by "brake failure" warning, no LCD display, speed/rev/temp/fuel gauges all not working, no fuel gauge, roof not working, radio controls not working.
Tried the battery cutoff switch in the back, no luck - all looks ok for about 30s then goes mad again. When the warning sounds for airbag failure the gauges work again momentarily. Thankfully I only live 5 minutes away so I hobbled it home with no dials. Tried disconnecting the battery for 10 mins then reconnecting - still same problems - all ok at first then lots of warnings etc.
So I've locked the car manually and called Aston Martin Assistance who are sending someone out in the morning to either fix it or take it on a trailer to the dealership. Read a few threads on here and looks like it might be either:
a) Knackered battery (quite possible because I have noticed slow window operation and the hood only works with engine running).
b) Something to do with the "convertible hood controller"
So any opinions or advice? I'm hoping it's just another infamous electrical gremlin and that a new battery will sort it.
Thread on 6SpeedOnline with similar symptoms turned out to be the convertible top control module.
http://www.6speedonline.com/forums/aston-martin/26...
http://www.6speedonline.com/forums/aston-martin/26...
I had this on my DB9 last year whilst on holiday in Spain with 7 other Astons. Always went away overnight but reappeared earlier and earlier each day. Got me home (just) and turned out to be the roof module needed replacing! Very disconcerting all the other warning lights that show and the lack of speedo and rev counter. More worrying to those around me was that apparently my indicators kept on coming on and lights kept on flashing. Sorted out under warranty and all been ok since. Well part from last time out my paddles were disabled when going off on a trip - but all ok coming home. Astons - don't you just love them!!!
Thanks so much for all your feedback. I've just been outside and it seemed for a few minutes to have recovered somewhat. But then while trying to do a window reset it all went pete tong again. So I waited another 5 minutes until it had enough juice to shut the windows and lock the doors and I'll stop fiddling with it now 
I have the extended warranty and I recall being told "wiring" isn't covered by this, but if indeed it does turn out to be the "convertible roof control module" does this part constitute more than mere "wiring"?
DB9 Ian P said:
Sorted out under warranty and all been ok since.
Was this on the original or extended warranty? I have the extended warranty and I recall being told "wiring" isn't covered by this, but if indeed it does turn out to be the "convertible roof control module" does this part constitute more than mere "wiring"?
RIB27 said:
Was this on the original or extended warranty?
I have the extended warranty and I recall being told "wiring" isn't covered by this, but if indeed it does turn out to be the "convertible roof control module" does this part constitute more than mere "wiring"?
It was under original warranty but would be surprised if the extended warranty didn't cover.I have the extended warranty and I recall being told "wiring" isn't covered by this, but if indeed it does turn out to be the "convertible roof control module" does this part constitute more than mere "wiring"?
Your problem does sound very similar to mine. It could well be the battery but my guess is that it is the roof module. Mine originally happened when I put the roof down without starting the engine. The passenger side rear window dropped an inch and then all the warning lights came on. Hope this helps.
Quick update - Aston Martin Assistance came out this morning and ran diagnostics on the car. Battery was fine but there were lots of errors that look to have been triggered by the "convertible roof module" pumping lots of crazy info into the system. The car is now with Harwoods being sorted, they recon it's the roof module too (apparently they've replaced a few this year already) and it will be covered on the extended warranty.
Hopefully that will be it - should get the car back next week. Must say that the service from Aston Martin Assistance was absolutely excellent and Harwoods were very understanding and helpful when we dropped the car off.
Hopefully that will be it - should get the car back next week. Must say that the service from Aston Martin Assistance was absolutely excellent and Harwoods were very understanding and helpful when we dropped the car off.
Yep not exactly prime convertible weather at the moment!
It was quite interesting chatting to the AM Assistance guy and the dealership about the systems in the car and how they all connect together. It turns out that the "Convertible Roof Control Module" is part of the CAN Bus system in the car - (apparently there are two "networks", one high speed for safety features, and one low speed for noncritical stuff like door locks, windows and radio etc). When a module fails (like the convertible roof control module) it spits out loads of erroneous data into the network causing it to crash all the other stuff - hence the dash/windows/dials/radio etc going nuts.
I also saw the diagnostic readings which were really interesting - I know there has been loads of discussion on this forum over the years as to whether or not removing Fuse 22 is highlighted on the diagnostics, I can confirm that it does indeed flag up as a "Diagnostic Trouble Code (DTC)" message about the "exhaust muffler" but it's obviously nothing to worry about.
It was quite interesting chatting to the AM Assistance guy and the dealership about the systems in the car and how they all connect together. It turns out that the "Convertible Roof Control Module" is part of the CAN Bus system in the car - (apparently there are two "networks", one high speed for safety features, and one low speed for noncritical stuff like door locks, windows and radio etc). When a module fails (like the convertible roof control module) it spits out loads of erroneous data into the network causing it to crash all the other stuff - hence the dash/windows/dials/radio etc going nuts.
I also saw the diagnostic readings which were really interesting - I know there has been loads of discussion on this forum over the years as to whether or not removing Fuse 22 is highlighted on the diagnostics, I can confirm that it does indeed flag up as a "Diagnostic Trouble Code (DTC)" message about the "exhaust muffler" but it's obviously nothing to worry about.
Good to hear it is getting sorted so quickly - and under warranty!
When mine went it was in Spain and only half way through the holiday. When Grange fixed it they said the amount of info that came out of the diagnostic check was incredible as basically I had done 1,000 odd miles with all these error codes happening. So, one minor thing fails and the car thinks the world has come to an end - drama queen or what
When mine went it was in Spain and only half way through the holiday. When Grange fixed it they said the amount of info that came out of the diagnostic check was incredible as basically I had done 1,000 odd miles with all these error codes happening. So, one minor thing fails and the car thinks the world has come to an end - drama queen or what
Car is back! It was indeed the Roof Control Module. Apparently it's a fairly common issue. All covered under the extended warranty and a nice quick change for the dealer.
Apparently if anyone gets stuck with this problem you can unplug the module and the car will work fine without it (except the roof of course), I'm not sure where it's located though. I wonder if pulling the fuse F10 (Convertible Roof module) in the boot would solve the issue for anybody who encounters it in the future?
Apparently if anyone gets stuck with this problem you can unplug the module and the car will work fine without it (except the roof of course), I'm not sure where it's located though. I wonder if pulling the fuse F10 (Convertible Roof module) in the boot would solve the issue for anybody who encounters it in the future?
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