dizzyblond Posted October 25, 2011 Posted October 25, 2011 Hi Guys...where EXACTLY is the ECU on a 2005 HDi 4 spd auto???...I am going to replace the OS file (to remove the FAP particle filter file) and have been led to believe that it is easier to carry this out on the bench with a stabilised power supply, is this correct??? and are there any tricks to removing it???...anything else I need to know???...thanx in advance for all your help...anyone heard from 'coastline taxis' lately???...kind regards dizzy Quote
mlkey Posted October 26, 2011 Posted October 26, 2011 Hi Guys...where EXACTLY is the ECU on a 2005 HDi 4 spd auto???...I am going to replace the OS file (to remove the FAP particle filter file) and have been led to believe that it is easier to carry this out on the bench with a stabilised power supply, is this correct??? and are there any tricks to removing it???...anything else I need to know???...thanx in advance for all your help...anyone heard from 'coastline taxis' lately???...kind regards dizzy Not 100%, but fairly confident it is behind the battery, inside the fusebox, underneath the top gubbins. Quote
Johndouglas Posted October 26, 2011 Posted October 26, 2011 Yes - it's behind the battery. Turn the four plastic screws a half turn and the cover will lift off. The ECU is held by a couple of torx screws. There are three connectors which swivel to disconnect from the back of the ECU Quote
dizzyblond Posted October 30, 2011 Author Posted October 30, 2011 Hi 'john douglas' and 'mikey' and thanx for that much appreciated...now behind my battery on top is the 'transmission controller' or that's what it checks out as when I google the info from the top of the box...so is the ECU underneath this box or behind and lower or what, any ideas???...and how do you actually remove the ECU, as in; is there a procedure to follow before or when you unclip the plugs?? I mean something like the procedure for an electrical reset maybe?? or perhaps a procedure to 'power it down' or something or is it just simply; unbolt, unclip and remove plugs, and remove from car???...from what little I know about C5's this all seems way too simple and uncomplicated???...also is there anywhere I can get hold of a wiring diagram for the C5???...OK guys thanx again for all your help, much appreciated...kind regards dizzy Quote
mlkey Posted October 31, 2011 Posted October 31, 2011 Hi 'john douglas' and 'mikey' and thanx for that much appreciated...now behind my battery on top is the 'transmission controller' or that's what it checks out as when I google the info from the top of the box...so is the ECU underneath this box or behind and lower or what, any ideas???...and how do you actually remove the ECU, as in; is there a procedure to follow before or when you unclip the plugs?? I mean something like the procedure for an electrical reset maybe?? or perhaps a procedure to 'power it down' or something or is it just simply; unbolt, unclip and remove plugs, and remove from car???...from what little I know about C5's this all seems way too simple and uncomplicated???...also is there anywhere I can get hold of a wiring diagram for the C5???...OK guys thanx again for all your help, much appreciated...kind regards dizzy Had no trouble removing mine. I disconnected the battery for safety as you need to disturb quite a few plugs. I am pretty sure the ECU you want is the one underneath the one you are looking at. It all comes apart in a logical way.. I used the Haynes manual for wiring diagrams recently, it was fine. Quote
Johndouglas Posted October 31, 2011 Posted October 31, 2011 You certainly want the battery disconnected before removing the ECU. The detailed proceedure for battery removing is to allow the ECU "to go to sleep". I don't know - but all sorts of things might go wrong or fail to function properly if it was removed in a 'live' state. Quote
dizzyblond Posted November 1, 2011 Author Posted November 1, 2011 Thanx for that Guys...I have yet to receive my leads to enable me to process the ECU file, will revert when I have 'split the atom'!!! LOL...thanx again for all your help...kind regards dizzy Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.