p38 2001 possible becm/imobiliser problem

Hi There!
P38 2001 battery flat for some unexplained reason, recharge battery and fitted to the car. key code lock out message. wait for some time try to enter the code several times no luck.
alarm is flashing. try various methods find on the internet forums still no luck.
please note that when i put the key in the ignition and turning it to position 2 the engine check message is not there.
Disconnect battery and reconnect several times and try several new combination still no luck. when i try to put the eka code there is no flashing of any lights.
any help will be very appreciated.

Where do you live? oh i found you. west london?

By the sound of it, you need a resync. Callrova is your man. Get your battery tested first before anything .

try a pm to frountgarage he has a syin mate for a tour engin rr..

Once you get the vehicle started by re-synching using whichever method (SyncMate tool or Faultmate/Testbook et al) then I would urge you to replace the RF transceiver....

One of the chief reasons for unknown flat batteries, is the fact the Central Locking and Alarm RF Transceiver keeps picking up odd signals from close by transmitters/Radio ariels/Mobile Phone masts/Petrol Stations(!) even wireless door bells have been known to cause issues.....

This spurious signal wakes up the BeCM to check if it is the Remote Fob being pressed...the BeCM stays 'awake' for 3 minutes drawing a couple of amps from the battery, then goes back to sleep again, then if another signal is picked up it wakes up again for another 3 minutes.....if the signal persists, the BeCM stays awake all the time and that 2-3 amps drain will be enough to render the battery to weak to start the car within a few hours.

There are two fixes - one is considered temporary, the other permanat (to a degree)

Temporary Fix - Remove the blue Ariel connection to the current RF Transciever to reduce it sensitivity - the fob will only work when right next to the vehicle

Permenant Fix - Land Rover revised the RF Transciever due to this problem so get your self the newer version.

Let us know how you get on.

As the lights are flashing it could also be that the driver door lock has failed and the becm is looking for a signal from the passenger door and the ecu is in French setting very coman

Problem sorted. it was the drivers door latch witch i replaced and all is ok now. total cost of 300GBP. mechanic came out to look at first and then returned to fit the latch next day. expensive? what do you think?

hi guys
if you have any sort of becm fault on your range rover give doug from MODULE DIAGNOSTICS he came out and his my range rover out the very next day and now its running better than ever...nothing is to much trouble for doug....i can not speak highly enough of him...what a great genuine and very very far guy...god bless you doug