Advice on an issue
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Chopdogs

Original Poster:

93 posts

87 months

Sunday 30th May 2021
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Tried to take my V8VS with SSII for spin today.

Got in and started up - lots of warning lights but I figured they’d clear after a while. Two message - one saying Traction Control Temporary (sic) Off and one saying ABS/DSC Service Required.

After a few miles it refused to shift down from 5th which resulted in a Clutch Overheat message down my rather bumpy driveway. It did not drop into first when I turned off - just stayed in neutral.

Just got back and it will go into 1st gear (but not risking driving it to see if other gears are available) but not into reverse.

Any thoughts on what it could be?

New clutch required or entirely separate?


Sebastian Tombs

2,159 posts

221 months

Sunday 30th May 2021
quotequote all
This is the sort of thing that happens when the battery is flat.
Try recharging or replacing the battery.

paulrog1

1,231 posts

170 months

Sunday 30th May 2021
quotequote all
Sebastian Tombs said:
This is the sort of thing that happens when the battery is flat.
Try recharging or replacing the battery.
Yeah thats right, either recharge or replace the battery, plus i would also reset any fault codes on an OBD reader.

Astontony

522 posts

83 months

Monday 31st May 2021
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Totally agree with other 2 comments, bad or flat battery. I have had many computerised cars and the first things they do is throw lights when the battery is flat. If I am away from my car for more than 4 days I always put it on a tickle charger.
A BMW 645ci I had would throw a suspension light then a gear box and go into limp mode Then it would throw a hoist light all caused by a poor battery.
I bought a new battery plus an SD11 reader so I could cancel codes and start from fresh and weed out the bullst ones.

Astontony

522 posts

83 months

Monday 31st May 2021
quotequote all
Totally agree with other 2 comments, bad or flat battery. I have had many computerised cars and the first things they do is throw lights when the battery is flat. If I am away from my car for more than 4 days I always put it on a tickle charger.
A BMW 645ci I had would throw a suspension light then a gear box and go into limp mode Then it would throw a hoist light all caused by a poor battery.
I bought a new battery plus an SD11 reader so I could cancel codes and start from fresh and weed out the bullst ones.

Chopdogs

Original Poster:

93 posts

87 months

Monday 31st May 2021
quotequote all
Thanks.

I’ll double check & charge the battery.

Someone with the exact same experience (lights, codes & inability to shift down) said it was a faulty wheel speed sensor, so I’ll check that too.


Chopdogs

Original Poster:

93 posts

87 months

Monday 31st May 2021
quotequote all
Well, the battery’s fine, so I’ll get the wheel speed sensors checked.

Astontony

522 posts

83 months

Tuesday 1st June 2021
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Chopdogs,
the wheel sensor may be the culprit but once your ecu's throw codes it may be a case of having to clear them before they go away as they may not clear themselves.
If your battery was low and the codes do't clear themselves taking the car for a run may re charge the battery sufficiently for it to register as ok.
Maybe have the codes cleared and see if the codes come back ,if not you know it is the battery if they do you know its something else.
This is why I bought an SD11 reader to save bullsh@@ trips to the dealer.
If you are anything like me you probably want to know immediately.

Tyre Smoke

23,018 posts

290 months

Tuesday 1st June 2021
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Agree with all the above. Never had an Aston, but a C4 Picasso had an appetite for Abs sensors and would throw the Abs/traction control light when they failed. Would also only use 1-3 in it's stupid clutchless manual gearbox. And my Range Rover has always thrown the Hill Descent fault when the battery has been on it's way. Apparently cranking a big V8 causes a voltage drop across the sensors and if the battery is iffy, they throw their teddies. Who'd have thought it?

I doubt you need to go to an Aston dealer, any competent garage should be able to clear the codes and tell you which Abs sensor it is, if a decent battery charge and fault clearance doesn't put you back to normal.

Chopdogs

Original Poster:

93 posts

87 months

Tuesday 1st June 2021
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So, there's a loose wire to one of the front wheel speed sensors. This means that the car thinks one wheel isn't moving whilst all others are going at Xmph.

Clearly, this makes it troubled and confused and melts it's tiny electronic brain.

The AA chap who came out was fantastic and even followed me to the garage where she's currently residing waiting for some TLC.


Tyre Smoke

23,018 posts

290 months

Tuesday 1st June 2021
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Good news. Hopefully a simple and not too expensive fix.