DS3 Service Light on ECO disactivated

[patspiercing]

Hi,

I have a problem with my DS3 2012 1.6 HDi. The SERVICE light is on permanently and the screen says "ECO Deactivated. The ECO light is flashing and I cannot manually reactivate it.
I have reset the service indicator and also done a BSI reset but neither of these has helped.
The car seems to drive fine.

Any ideas as to what the problem may be.

Thanks
Mick

[Paul-R]

You need to get the car read by a decent diagnostic machine (preferably Diagbox) to see what error codes (DTCs) are present.

[PaulC5]

Is this referring to the stop/start system - if so it may be the battery is not fully charged or the ECO stop/start button has been pressed to switch off stop/start.

[patspiercing]

Hi,

Thanks for your responses.

I have just run a global test on Diagbox and come up with the following faults:

P1A9C - Energy Accumulator - State of Health Fault

FD80 - GSM Module Fault

I assume that the P1A9C is the cause of the problem.

I have read on this forum that it probably needs the start/stop capacitor changing.

Anybody know where this is located and a part number for it please.

Thanks
Mick

[patspiercing]

Ever since I have had the car ( since 2015) the stop/start has only worked after a long run. If I do short runs it doesn't work after a day or 2. The battery is good, 12.75V with engine off, and it charges at 14.4V at tickover so I think the alternator is ok.

[PaulC5]

Sometimes the capacitor can be under a front wing. The voltage can be high so special care needs to be taken if going near it. Many people including us are probably not bothered that the stop/start does not work for most of the time and if you did replace the capacitor you may find after a while the stop/start still does not work all the time.

This topic covers the FD80 fault viewtopic.php?t=74942

[Djandree]

Look here viewtopic.php?t=85875

[patspiercing]

Have got myself a replacement capacitor but cannot undo the electrical heavy duty wires from it. A 12mm socket is too small and a 13mm socket is too big. I have tried AF sockets without success and there is no room to fit an adjustable spanner in.

Is there a special tool for the job?

I have looked at the replacement and an 8mm (13mm spanner size) nut will fit on the terminals so I can fit the new one using these

Any ideas please

[patspiercing]

Have checked all the grounds and there is no problem there but thanks for the suggestion.

[PaulC5]

A half inch socket might fit, it is between 12 and 13 mm.

[patspiercing]

Have tried half inch but that doesn't fit either.

[mickthemaverick]

This is what you need for that: https://www.ebay.co.uk/itm/404115493557

[Djandree]

If you look thru the post you have a tool number in it

[patspiercing]

Have got a friend to make me a tool and I have now changed the capacitor.

Unfortunately this has not fixed the problem.

Anybody got any suggestions as to what the problem could be please

Thanks

Mick

[PaulC5]

Have you checked the 12 volt battery yet ? Also, was the replacement capacitor a new one ?