Rapide S Fault Code P0315

[intouch1]

I had my CEL light on for a while and have been driving the car in the hope that it would clear itself.

As it didnt, I got an OBDII scanner and scanned the code today.

Error Code is P0315 Crankshaft Position Variation Not Learned

I was able to clear but upon restart it show up again.

Any clues ? Most importantly should I be driving the car ?

Car has 2000 kms on the clock and was delivered bit a rough start syndrome without CEL light and upon software update from Aston Dealer rough start stopped but the CEL light appeared.

[Phil57DBS]

from Irish :

question :

Is the "Coast Down Procedure" is:

1. Car needs to be at operating temp.
2. Drive car safely up to 70mph, with the a/c off, in "D"' or manual allowing car to reach 6th gear.
3. Once 70mph is reached, allow car to coast to 30mph, without hitting the brakes or turning the steering wheel more that 10 degrees
4. Repeat 2 & 3
5. Repeat 2 & 3
6. Repeat 2 & 3 (4 times total with no detection equipment)

NOTE 1: If you hit the brakes anywhere during the process, it will abort the sequence. That process won't count and you will need to do it again. With your experience, 4 successful procedures "should" relearn the sequence. You won't know unless AM dealer checks.

NOTE 2: With a battery replacement, you will need to reset radio pre-sets, window dip, and seat memory.

Do I have it right?

---

Irish replied:

Yep, that's good.. The coast down is actually called "Misfire Factor Corrections" ..attempts required depends on coasting speed, coasting on a flat grade learns faster, if on a upward/downward grade it will take a few more than normal to learn

Irish