dewi9uk

Been a while since I was here last, so I will summarise. Honda HSF/Bluetooth unit proved to be culprit. Found a post suggesting a replacement capacitor could solve problem, so bought capacitor, replaced it and retried. Still draining battery at irregular intervals. I have delved further and MAY have a culprit, but do not have the knowledge to go further. First off, the unit is not just bluetooth, it also handles verbal commands for satnav as well as 'phone (as I understand it). These commands must be digitised and stored somewhere. There is faily big memory chip in the unit which I suspect is used for this purpose. Looking at the datasheet for it (type is Micron 48LC8M16A2) say it is a DRAM (dynamic RAM, which needs refreshing to retain data) and is supposed to swith to 'Self Refresh' mode on power down. This takes little current from the battery. IF it does not do this, and instead goes into 'Auto Refresh', the current is a lot higher - enough to drain the battery over a few weeks of non use. Anyone want to take this line of thought further ?

Eventually sorted by changing the window switch unit in drivers door. Apparently has the receiver for the central locking unit inside (??) and now works OK. It has a bit more range also - I can unlock from front door (about 15 feet away). Still draining battery - will look into bluetooth module when I can get at it. It is under the central vent unit by windscreen, correct ? I will then try the mod you suggest as S/H units are around £70 now and come with no guarantee. David

Thanks Trevor. Going back to dealer may involve another £35 .. Have currently got another problem - battery keeps discharging itself over a few days (3 or 4). Looks like about 0.45amp draw with nothing on and car locked. Recharged battery (from 11v) and started pulling fuses. F15 under bonnet cuts draw to zero. Fuse is labelled 'Back Up Acc' in owners book. I am wondering if this is the battery pack in the alarm module, wherever that is hidden. If so then it might not be sending the 'doors locked' signal so fob will operate. Thsi battery might have died due to car battery dying ? Sorry, just a thought at the moment. Will continue research and chasing via WWW. David

The Haynes CR-V manual gives full details of the 2.2CDTI engine and much of the suspension etc is the same. Wiring I do not know about as fuseboxes are different. Only bought one for engine overhaul. Like you, I cannot get a manual either. The US ones (Accura) have different engines and trim. David

My battery died after leaving the car for three weeks without using it, then having a sharp frost (one or other killed it). Had to buy new battery and then had problems. First problem was fobs did not work. Key would unlock drivers door, could start car and drive it OK, tailgate would not open. Went to local Honda dealer. Dealer recoded fobs(2) and reported problem with tailgate latch switch not operating. Needs new one - £537 fitted !! Bought replacement from breakers, latch worked OK according to dash lights. Fob would then operate doors (unlock only) and tailgate(tourer). However, still could not lock car with fob. Dash tells me that all door switches work correctly (shows doors open/close on display with ign on and doors opened/shut to test). So, where do I go now ? Dealer says locking fault is usually door switches else could be long investigation and possible module/s change job (at gerat expense). Can anyone advise please.

Got an Accord gen7 facelift last year. Was member of HondaKarma, but it seems to have disappeared ? So am trying this forum.