Just bought a Grand Espace IV 2007 3.0L DCi. I really like it but it has a multitude of issues that I am working through, the most annoyying seeming to be the 'check ignition' and subsequent limp mode that seems to be reasonably common. I am fairly used to researching issues and resolving them, trying to avoid spending too much along the way but I am stumped on the following issue and wondered if anyone knows enough to help.
Its a keyless entry system and the cards seem to work ok. The drivers door and boot lock as they should but none of the passenger or rear doors locks.
Other symptoms - all the doors unlock, i.e. if I lock them manually and close them then 'unlock' with the key card they all unlock as normal.
The doors (except the drive) do not make a sound when I lock using the keycard but the deadlock (i.e. double press) does cause the locks to make a sound.
I had the passenger door card off and looked at the lock but deduce anything, and wasn't sure how I would actually remove the lock unit as it was attached to the door handle via the cable and manual unlock keyhole.
Any suggestions as to the possible cause or troubleshooting I could do to get closer to a diagnosis and solution? I read somewhere that the doors except the drivers door is controlled by a separate unit. I doubt that all 3 locks have failed in exactly the same way so I am suspicious its a issue with the controller, or the wiring/fuse/relay but I don't know where to look to test this. I understand that replacing the whole control unit is expensive and requires the dealer to code the thing which I hope to avoid...
Any help greatly appreciated.
Its a keyless entry system and the cards seem to work ok. The drivers door and boot lock as they should but none of the passenger or rear doors locks.
Other symptoms - all the doors unlock, i.e. if I lock them manually and close them then 'unlock' with the key card they all unlock as normal.
The doors (except the drive) do not make a sound when I lock using the keycard but the deadlock (i.e. double press) does cause the locks to make a sound.
I had the passenger door card off and looked at the lock but deduce anything, and wasn't sure how I would actually remove the lock unit as it was attached to the door handle via the cable and manual unlock keyhole.
Any suggestions as to the possible cause or troubleshooting I could do to get closer to a diagnosis and solution? I read somewhere that the doors except the drivers door is controlled by a separate unit. I doubt that all 3 locks have failed in exactly the same way so I am suspicious its a issue with the controller, or the wiring/fuse/relay but I don't know where to look to test this. I understand that replacing the whole control unit is expensive and requires the dealer to code the thing which I hope to avoid...
Any help greatly appreciated.