aston martin db9 2004

[g g]

hi, I wonder anyone can help please,
the engine will not fire up have a good battery have left the car in the garage for past 6 months.
hear viberating noise from the back of the car the engine crank up nicely but will not go on any suggestion please.

[paulrog1]

I would try and see if there are any fault codes?

Alot of system checks are carried out before the engine fires up and maybe the car see's a fault.

I persume you have fuel in the tank? Put some fresh petrol in.

Is there any rodent damage being in the garage so long

Try your spare key instead

Edited by paulrog1 on Saturday 31st July 19:10

[g g]

Thank you for replying, put some fresh petrol in used the spare key fob as well engine did not fire up but, come up with fault code of p0850 and p1000 and red triangle. Many many thanks..

[paulrog1]

If the PCM has stored the P0850 code, it means that the input circuit which measures the function of the park/neutral switch has given an abnormal voltage reading.

If the ECC has not been able to check all the monitors since the last time the vehicle's battery may have been disconnected or any repairs made which required clearing of trouble codes, the ECC may set a P1000 trouble code. Possible causes include:

Battery recently been disconnected
Powertrain Control Module (PCM) or ECC recently disconnected
OBD-II monitor failure detected before drive cycle completion
Recently cleared trouble codes via scan tool or diagnostics device

Try resetting all codes and look at the park/neutral switches in your ski slope but i suspect a low voltage issue.

Charge the battery and keep it on a ctek battery conditioner.

[g g]

Will do, thanks so much for coming back to me.