Hello

https://www.rangerovers.net/threads/how-to-safely-have-a-p38-locked-with-battery-disconnected.179857/
From above site.
marty_nz 2015

“The way I disconnect the battery and secure the vehicle - and what I advise others to do on their P38s is to disconnect the battery with the vehicle UNLOCKED,

And then manually close the doors/lock them with the sill locking buttons, and then manually lock the drivers door with the key.”

YES I DID THAT it worked the vehicle was all locked.
A few days later came back used key in door to unlock and went on with the mechanical job. I had to lock and unlock several times with the key in door during the job.

Work finished ….. opened the door, and window, and kept them open while I opened the bonnet and reconnected the battery.

When I have done this in the past there was the sound of the doors locking.
Drivers door still open but no sound this time, car not locked.

Put key in ignition all okay, turned key and motor started so no problems there.

Tried to sync key fob as I have done in the past ….no flashing red light this time …. no sync.
Tried the spare key same no sync.
Their batteries were new 8 months ago and both have been operating perfectly.

I have been using the car for a week now using key in door to lock/unlock.
All doors lock/unlock using the key except the passenger door…. it hasn’t worked electrically since I purchased the car 12 months ago.
The starting and running of the motor is not a problem.
Reset the windows, mirrors can be moved and self dipping function disabled okay.
Suspension all working.

Has anybody got any ideas on how I can get the key fobs to sync so the lock/unlock buttons are operational?

Thanks in advance
Andrew

The flashing red light on the fob when you put the key in the ignition, is caused by the coil around the ignition lock causing the fob to transmit an unlock code. However, the coil is very fragile and often breaks. In which case you need to manually sync the fobs.

With all doors and tailgate closed, put the key in the lock on the drivers door and turn it to lock, hold there and while holding it there, press and hold the lock button on the fob until the red LED flashes faster. Release the button on the fob and turn the key back to centre. Then turn to unlock, hold there, press and hold the unlock button on the fob, etc. Fob should then be synced and you can then do the same for the other one.