possible corrupt bsi after flat battery - help please

[Afo]

Hi all and seasons greetings...

Car: 2002 307 hdi dturbo (110)

a couple of days ago, the alternator belt snapped after the tensioner gave in. The battery became flat and I hastily disconnected the battery from the car to charge it overnight, without following the 3-minute rule

Upon reconnection (also not done very thoughtfully) the engine was turning but didn't fire. Needed to get it to the garage to get the belt etc done, so found the info on here to reprogramme keys (luckily have the code card) using Planet (side note to follow about reprogramming keys...took me several attempts)

Got the car started, but oddly I couldn't lock the car using the remote or the door-lock. The dashboard button is constantly flashing rapidly, even when the car is running, but pressing it does nothing and also trying to re-sync the keys (in ignition, press 10secs...) does not work.

I've found several posts with similar problems, but the replies only suggest a corrupt BSI without advising on the solution. Since I have planet, can I sort this myself?

Additional info to note: when I first started planet to reprogramme, it did not pick up the car's VIN as it usually does, instead the field was filled with that symbol that looks like a 'b' with the vertical line extended downwards (can't find it on my phone which I'm posting from) hence my assumption that I inadvertently corrupted the BSI. The car has now had the belt&tensioner changed, luckily no other damage it seems! I have tried disconnecting the battery and rebooting the proper way, but it hasn't made a difference...in fact I am about to reprogramme the key again as it seems to have lost the config again!

Where do I go from here please?

Cheers

[bettyswollocks]

The battery has to be in tip top condition for key programming

[jmkent]

Originally Posted by Afo

Where do I go from here please?

To the scrapper or ebay and try to find another BSI if thats what you think is goosed

[bettyswollocks]

Me i`d buy a battery first

[jmkent]

Second thoughts.... after looking on ebay (£150-£200) maybe a battery would be cheaper..... if it does the job

[matt268uk]

If the new battery does not help,have a look on google for the ecu doctor,they work on this stuff much cheaper than anywhere else i've found.

[Afo]

Thanks for all the input so far...i could do with some clarification on the key resyncing...

When you turn to ign+, is it meant to be the first click of the second?
Also when it says press the lock button for 10 seconds, is it the one on the keyfob or the dashboard button? I was trying the former over and ove, then last night had a eureka(/doh!) moment where I thought the latter would work -alas it didn't, but maybe it's because I'm doing something else wrong...

Also I realised that the drivers-side window switches are reversed (n/s to o/s and vice versa) and the passenger side switch doesn't do anything - does this suggest corrupt software or is there a way to relearn similar to key programming?

The red light to this point continues to flash rapidly and also have noticed the esp button doesn't do anything (where it would normally turn it off)

[dackjaniels]

Originally Posted by Afo

Also I realised that the drivers-side window switches are reversed (n/s to o/s and vice versa) and the passenger side switch doesn't do anything - does this suggest corrupt software or is there a way to relearn similar to key programming?

Hi,

Sure I read somewhere that you can reset the windows by first closing the drivers window using the switch, then release the switch and apply the switch again and hold for more than 2 seconds (in the raise window position).
Not sure if I got it right but can't hurt trying.

[Afo]

Forgot to add above, battery is relatively new and in good condition.

dackjaniels - yes I think that is a procedure to reset one touch open/close, but in my case the passenger door switch does nothing and the two switches on the drivers door have swapped which side they operate (one-touch still works). cheers though

[bettyswollocks]

Go to configuration in your engine ecu to see if has lost its configuration.