Central locking

Hi I fitted new rear doors to my discovery one and now central locking has stopped working they locked and then wouldn't unlock I have changed battery in fob and have checked fuses

If you still have the original doors amd their locks etc worked, then you could just change them for the ones in the new doors.
Unless central locking for all doors has failed.
I take it you have checked that the rear doors' childproof locks have not actuated.

Central locking has stopped on all doors the central locking locked the doors after i fitted them then wouldn't unlock and now won't do anything

Right, this is an electrical fault then. Have you tried disconnecting the battery, waiting a while then reconnecting it?
If that don't work then I would wait until @sierrafery or someone comes on to talk to you cos I is cr@p at electrics. all i do know is that changing a rear door should not affect central locking, per se as I have done it and never had a problem. so the problem is more central, i.e. possibly at the region of a Control Unit.

Squiz680 said:

Central locking has stopped on all doors the central locking locked the doors after i fitted them then wouldn't unlock and now won't do anything

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The causes could be a few things, but without knowing the model year of you disco and what you actually touched I have no idea of the exact fault. What have unchecked so far?

It a 1997 discovery 1 I disconnected wiring at door pillar when I swapped doors I've only checked the fuses

Welcome to the forum by the way!
It might be nice if you go to "introduce yourself and do just that, and also if you use P and TY from time to time!

Ok thanks for help

Squiz680 said:

Ok thanks for help

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No problem, we will help you solve it. you aain't the first!

Was meant to be a quick job to change doors. Electrics ain't my strong point

Squiz680 said:

Was meant to be a quick job to change doors. Electrics ain't my strong point

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(Taking the risk now of a telling off from SF but here goes.)
Do you have a wiring diagram? Haynes or the Rave manual? Have you checked the relay(s) and you still haven't told us if you have disconnected and reconnected the batt or not.

No not got any wiring diagrams or Manuel not checked relays as not found any and not disconnected battery either will go do that now thanks

Stanleysteamer said:

(Taking the risk now of a telling off from SF but here goes.)
Do you have a wiring diagram? Haynes or the Rave manual? Have you checked the relay(s) and you still haven't told us if you have disconnected and reconnected the batt or not.

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What relays will that be? i may be learning something after 32 years with the type of locking that the D1 has.

Not sure where relay 4 central locking is located

Squiz680 said:

No not got any wiring diagrams or Manuel not checked relays as not found any and not disconnected battery either will go do that now thanks

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your just finding what nonsense that is given in forums the operation is simple the remote fob signals the the security ecu to send a 12v pulse to the master actuator, this in turn operates and open and closes the four slaves.
so start with does the fob operate in setting the alarm and remobilising the engine? indicating the ecu is functional, is there a 12 v supply at the master actuator?
Just to add there’s only one fuse fo the central locking, its 15amp positioned the the upper aux fuse strip above the main fuse board.
Also was replacement doors an exact match electrically with the main harness ?

Squiz680 said:

No not got any wiring diagrams or Manuel not checked relays as not found any and not disconnected battery either will go do that now thanks

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Great.
Will try and find a link for you to download manuals and the DAVE manual which gives you all you need to know, if it fgoes bak as far as Discovery 1.
Right, here is the Rave manual


You'll see it does lots of LR products but you just need to click on until you get to "Discovery".
And this should give you the owner's manual
https://www.landrover.co.uk/ownership/guides-and-manuals/index.html
as well as lots of other stuff.
The cover to the fuse box should tell you which fuse is which.
In Rave you need section L6
Meanwhile check fuse F4.
Central locking is not a new problem as this will show you!
https://www.landyzone.co.uk/search/105192247/?q=central+locking&o=relevance&c[node]=8

Not sure bout setting alarm but it is remobilising the engine where is the master actuator located

Right, now i've had a look at Rave, don't think there is a relay involved, but FUSE 4 controls it.
I'll leave you in @discool 's sure and certain hands. He knows far more than I do about them!

Thanks 4 ur help Stanleysteamer

Squiz680 said:

Thanks 4 ur help Stanleysteamer

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No probs!