See if this is helpful

 

Hi RedSector,
Thanks for your reply and Youtube link. Can see this may work if you had a mate doing the reconnect with you inside car with door closed before reconnecting. The problem comes when on your own, as you would upset the reset if you open the door. I have had to find a work round to this as my BSI had locked the system into Eco mode and the electric windows would not move to open. I found on another post that you can cheat the system by manually moving the drivers door latch into the closed position with the door open before reconnecting the battery. I was sceptical as had read you should not open the doors after disconnecting the battery but it worked for me.

 

Odd, the windows usually need a manual reset first to prevent this happening.

Are you sure you left the battery disconnected for at least 3 minutes?

 

Hi Gibbo,
Not sure what a manual reset of the windows is but you have got me thinking about the 3 minute rule which I thought I followed as my 2011 HDI 150 needs the inlet filter cover removed before getting access to remove the battery positive connection. This is down to me being a cheap skate and buying a smaller battery that does not fill the battery box meaning I have to raise the battery cover to clear the positive disconnect as well as the smaller flap over it. The outcome is you do not always get a clean disconnect or even reconnect as you cant lift the lid that much. So it may be all down to me being a cheap skate.

 

I have seen that procedure on the internet and most of it is unnecessary. The really vital thing is to wait at least 3 minutes before disconnecting the battery. For some Peugeots PSA servicebox states a long wait time (in some case 12 minutes is needed). On some Peugeots you need to wait 2 minutes after reconnecting the battery for all the ECU to configure themselves.

Turning the side lights on from outside to wake the BSI should be enough and I doubt that it is necessary (opening the door should do the same thing). After that it should be safe to open the door and get into the car.

In the video Redsector posted you will see that the guy didn't do the bit with the key lock button. Pressing the the lock button on the key with ignition on resynchronises the remote locking and can be done when you are inside the car. If you try to do this from outside you run the risk of selecting the wrong position on the ignition switch and even accidentally starting the car. If you select the wrong position the remote entry system is likely to work normally i.e. lock the doors and if you continue to hold the button it will then close the windows.

If you leave the battery disconnected for a long period some of the ECUs (e.g. electric windows ECU) will lose there setting and will need to be reset after the battery is reconnected.

I have attached the two procedures for disconnecting and reconnecting the battery on a 3008 I found on servicebox. I am not sure what the difference is. One warning these docs are from an installed version of servicebox Nov 2013. Later version of the 3008 do not have the parking brake release mechanism mentioned in the documents and that can be a real problem if you can't operate the parking break motors and need to move the car.

 

Hi Ian, WOW that's a heck of a lot of good information, thanks for your time and trouble finding it. Looks like its a 4 minute rule for my 2011 3008 and as you say most of the info on the internet looks as if its not required. The only thing I found to add for my model is to remove the rechargeable torch and boot lamp before letting BSI go to sleep. Also Interesting note you added about window ECU loosing info if battery disconnected for long time. Mine had been off for days as had to reseal the diesel HP pump regulator which is buried at the back on the 2.0 HDI engine.
Have copied your info so big thanks, Just hope I do not need it too soon.

 

I think some of the procedure on the internet have been built over the years based on experience with different models. I had a battery supplied by a mobile service a while back and the guy had his own system some of which I know wasn't necessary on my car but may be needed on other cars.

The ECU losing settings is an interesting one. It's a similar situation with the remote entry key fobs. I have never had to resynch my keys after changing the battery. This is because there is a capacitor that sits across the battery and it holds its charge for quite a while.

 

Hi Ian,
Yet more good nuggets of information from you ! Think you may have explained something that worried me, I get a large flash between the battery positive post and connector clamp when refitting it even though I had removed all loads ( interior lights switched off, rechargeable torch and boot lamp removed ). Can this be this ECU capacitor recharging ? Thanks again for all your time and help with this , forum members like yourself make this forum.

 

I guess that can happen. One thing you learn in first year electrical engineering is that a discharged capacitor is a short circuit when initially connected to a DC source and only becomes open circuit when charged. Inductors are the opposite -open circuit when first connect and become a short circuit once the magnetic field is established.

 

OK so that answers why it sounds like I am shorting the battery when I reconnect it. Now I will have to look up what an inductor is.

 

When the battery has been off a certain amount of time, you should find that your windows don't smoothly go up and down in one movement. Instead they jerk up an inch or two at a time.

To make them work properly you have to put the window fully down, hold the button down for 3 seconds, then put the window up, hold the button up for three seconds.

 

Hi Gibbo,
All I can say is that on my model, with my head and arms through my open window when I pressed the lock button on the remote the window went all the way up in one swift action. Hence why I wanted to know what I was doing wrong as think I would not be chatting to you if I didn't jump back out of the way, My warning to all 3008 members is read what Ian posted and miss out the press the lock button through the open window part found on the internet.

 

I think the fusebox on top of the battery is a BPGA which is not a simple fuse box. It is broken into two parts. One part is directly connected to the battery and the other part is connected by an ECU controlled relay. There are several versions of the BPGA so I don't know which post you are referring to but if you disconnect at the wrong point you will not fully disconnect the battery.

A lot of battery disconnect instructions tell you to disconnect the positive terminal first. When I used to do car radio work many years ago I always took the negative off first. The reason being that in most cases I needed to use a spanner and if I did the positive first I ran a risk of shorting the battery to the car body. Are you able to get to the negative battery terminal more easily?

BTW I don't think a disconnect-reconnect-disconnect in short succession is likely to do much harm. The BSI is highly likely to have capacitors on the power input. The capacitors are there for smoothing so should hold their charge for long enough that the BSI will not notice. The other thing is once the BSI is asleep you usually need to wake it after reconnecting.

 

Hi Ian,
Sorry for not replying sooner but have been away this week and did not have access to the internet. Glad I asked for your thoughts on disconnecting from what I thought was just a Fuse box. Do not know what a BPGA stands for but it sounds like I could do more harm than good by disconnecting from it first or reconnecting last. Whish I could get to the negative terminal but that is covered by the battery box lid which intern has that BPGA to disconnect before you can remove it . Also you have changed my thinking that not having a clean disconnect or reconnect of the battery while the BSI is sleeping was part of the problem. Next time I will just follow the Service Box process you posted to the letter.
Thanks again for your time and help.

 

All Peugeots even those without a BPGA have the Economy Mode function. It does two things -
(i) Disconnects the power to all but essential things if the battery voltage is low.
(ii) Turns off the accessories such as the radio after 30 minutes if the engine is not running..

The only way to clear it is to start the engine.

The BPGA turns the power off to essential things as well and if its relay fails (and they do) the car will not start. It even turns the power off to the OBD connector so some scanners won't work.

 

Yet another good bit of information to keep, so if your car will not start and your OBD scanner wont work to fault find look at the BPGA relay.

 

Some OBD scanners use the "permanent" 12V supply on pin 16 of the OBD connector. The Peugeot diagnostics system and other good diagnostic testers don't need it.

 

Is their any way to disconnect BPGA and for the my 3008 to continue to run. In France at the moment and all dealerships can not access the BPGA for my car.

 

You can not disconnect the BPGA but you can bypass it as a temporary measure. There are several versions of the BPGA but this video may help you bypass it -see time 13:23.