ecu question

spliffy · Post by **spliffy** » 12 May 2010, 18:20

will my ecu off my 2.0lt xantia r reg fit onto a 406 with the same engine s reg i was worried about key pad code dont know much about it im asking this question as i have had my baby written off by an idiot all because of a bent wishbone and a new door boo hoo

wheeler · Post by **wheeler** » 12 May 2010, 18:28

If its the same injection system & the plug is the same it will fit no problem. The code is stored in the ECU not the keypad so your original code will be transfered to the 406, it can then be changed if need be.

spliffy · Post by **spliffy** » 12 May 2010, 18:37

does a 406 have a key pad ?? if not will the car start daft question maybe

wheeler · Post by **wheeler** » 12 May 2010, 19:38

spliffy wrote:does a 406 have a key pad ?? if not will the car start daft question maybe

An S reg may have a transponder, in which case probably not compatable.
Thought you meant you knew it had a keypad.

spider · Post by **spider** » 12 May 2010, 19:52

Just to clarify this, they changed at late P / early R to transponder.

Its possible to find a P with a transponder although most are keypad, and its also possible to find an R reg with a keypad, but 99% will be transponder.

Reasons being stock unregistered for a while I guess...

Best option: if possible examine donor 406. Keypad on RHD models is hidden on the right hand side of the dash under a pull out flap, just above the fusebox. Transponder models still have this flap but its a mini coin tray thing on those.

spliffy · Post by **spliffy** » 12 May 2010, 20:16

so just to clarify you dont think my ecu will work then the reason why i am asking is because im wanting to put my ecu onto the peugeot not purchased yet as my ecu is chipped if my ecu wont fit or work then im not intersted in buying the car if that is the case does anyone know of a compatible car cheers

citroenxm · Post by **citroenxm** » 12 May 2010, 23:03

If they changed Late P early R, then Citroen waited longer.. Which I doubt..

They changed to Transponder in 1998, R reg..

So P reg 1997 cars Will have Keypads, Isn't the keypad in a drop down cubby to the right of the steering colum on 406's??

The other clue to Transponder is an RF key not an IR.. There will be no IR LED on the key (Not the Red operating LED)

The actual Change Month, was Jan 1998 a change to Transponder

Paul

spider · Post by **spider** » 13 May 2010, 16:08

citroenxm wrote:Isn't the keypad in a drop down cubby to the right of the steering colum on 406's??

It is. But the later models (transponder) have this as a sort of coin tray thing anyway. Just above the fusebox on the right hand side of the steering wheel on a RHD car. ( as posted above

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