Pug 207 - Reconnecting The Battery...

[CitroJim]

Currently, my SORN'd 207 has no battery - It's donated it to my Activa...

The 207 may be without a battery now for a fair while...

When I want to connect another battery how do I go about it? Is there any special procedure?

Thanks!

[RichardW]

A little...

Put it on, then wait a couple of minutes for the BSI to wake up a bit. Switch the headlights on for a minute or so, before trying to start it. Check everything else is working. More important to let it go to sleep before you take the battery off....

[CitroJim]

Thanks Richard I'd not touched it for a few weeks but I'm not sure it went back to sleep after opening the car with the plip and then disconnecting the battery.

How long does the BSI take to nod off again and am I likely to have caused an issue by disconnecting whilst the BSI may still have been awake?

Sorry for all the questions but all this is very new to me...

These modern cars Don't have these issues with Xantias....

[xantia_v6]

Most of the instructions also say to perform the procedure without opening any doors and to wait a while after turning the ignition on, before attempting to start the engine.

If the battery was disconnected too soon, you can always repeat the procedure to be safe.

[Sloppysod]

I personally would turn the side lights on, BEFORE, connecting the battery, this way you do not get any unwelcome spikes of 'electricery', the same reason you have you PC connected via a surge protector - oh you don't - brave.

[Hell Razor5543]

Erm, my PC is connected to a strip block with both surge suppression and an on/off switch. When I am not using the PC the block is switched off. Let us see a hacker overcome THAT defence!

[CitroJim]

I personally would turn the side lights on, BEFORE, connecting the battery, this way you do not get any unwelcome spikes of 'electricery'

Ahh, so that's the reason for putting the sidelights on then I'd been wondering when I saw it in the instructions to reset the BSI.. I always thought it was for some special data signal to go to the BSI but it all makes sense now!

[RichardW]

It will probably be OK from the disconnect - it was probably in eco mode anyway!

I wouldn't put the sidelights on first - they are not direct switched, but by the network from the COM2000 to the BSI to the BSM where the actual power (relay) swtich is! Better to let the BSI boot up first before asking it to do anything. If you put it on Diagbox afterwards you will probably find an error code in the BSI for unexpected reinitialisation, but I don't know how to avoid this!

[white exec]

Is anything direct switched on these vehicles?
If a load needs to be put in place to head off any tendency to spike when a battery is reconnected, then it could be done by simply clipping on a few watts of electrical load (eg a 21W or bigger lamp) before connecting the battery.
Is the system so fragile that it could be damaged by the connection of its battery?
How does it cope when something inductive is switched off?

[RichardW]

Is anything direct switched on these vehicles?

No, I don't think so! The brake lights maybe....

Is the system so fragile that it could be damaged by the connection of its battery?

Sadly it is.... I rather suspect that it's more to do with taking it off when it's doing something, but it can corrupt the BSI such that it refuses to play anymore - plenty of examples. Jump starting cars with BSI is a bad idea as well....

How does it cope when something inductive is switched off?

It's alright when it's running, it's just letting it shut down and boot up correctly that's important.

[CitroJim]

Richard, thanks for the above it'll all adding to my understanding of these pesky things...

Like you Chris, I find it shocking and worrying that nothing seems to be directly controlled... Makes me quite uncomfortable to trust it... My past career as an electronics engineer and latterly an IT engineer inspires no confidence in such a system...

[white exec]

You would have thought that at the very least there would be sufficient surge protectors in the system, or even one of those ? 1 Farad battery-capacitors to enable memory and systems to close down decently, should the main battery be disconnected.

If there aren't, that's penny-pinching taken to a dismal level - or else an eye to nice big bills post-warranty.

[CitroJim]

Car makers are famous for their penny-pinching Chris... That's been the case forever and PSA are no better or worse than any of the others in my experience...

[spider]

Something I agree with, it should not be possible to 'corrupt' the BSi with battery disconnection / reconnection. This (to be blunt, in my own opinion) shows a slight lack of care in the design of unit itself

The 'wait 2 minutes for it to enter low power state' that's fine however it should be 'saving' all configuration immediately so there should be no wait time.

I'm not immediately aware of how other marque's handle this now they are nearly all fully 'plexed'


I don't know why but this kind of reminds me of 'Embedded' Windows vs normal Windows...

[CitroJim]

It just reminds me of Windows full-stop Andy....