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Range Rover P38 V8 1998 - Immobilizer fault - Fixed #

Posted by Greg Cox on March 6, 2011, 8:21 pm

Year of Manufacture *: 1998
( Optional ) Engine Code or CC: P38 V8

Hi all

I have a fault with the immobilizer. If i try to start car it will start and run for about 2 seconds. If I plug in AD and reset the security code it will start and run until I switch off the ignition. If I leave it for about 10 mins I have to plug in AD and reset the security code each time. Is it something I am doing wrong or is it a fault with the car

Thanks greg

Re: Range Rover P38 V8 1998 - Immobilizer fault #

Posted by Jon Speller on March 12, 2011, 7:20 am, in reply to "Range Rover P38 V8 1998 - Immobilizer fault #"
Message modified by board administrator March 12, 2011, 1:14 pm

Hi

It could be the ecu as it is not remembering the code,i had the same problem with one 12month ago

Re: Range Rover P38 V8 1998 - Immobilizer fault #

Posted by Andew West on March 12, 2011, 11:07 am, in reply to "Range Rover P38 V8 1998 - Immobilizer fault #"
Message modified by board administrator March 12, 2011, 1:13 pm

You could try changing the settings to non passive in the body control module, so that once you enter the eka it won't immobilise again until locked with the remote. Is the key fob/remote working? It may be a case of resynching the remote/s.
Regards,Andrew

Fixed #

Posted by Greg Cox on March 28, 2011, 10:27 pm, in reply to "Re: Range Rover P38 V8 1998 - Immobilizer fault #"
Message modified by board administrator March 29, 2011, 4:21 pm

hi range rover fixed.fault large radio masts causing problem.towed
range rover about a mile away from masts.it now starts and runs as
normal. thanks jon and andrew for your help.
Greg

Re: Fixed #

Posted by Shaun Dale <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT2719' width='330' height='300' border=0 style='border:none;'> on April 13, 2011, 10:10 pm, in reply to "Fixed #"

Hi Greg,
There is an updated radio receiver module for these (it sits right hand side, just behind the rear seat release button, remove the right side parcel shelf support) about £120. This has a much better interference rejection performance, it also reduces the tendency for other vehicle key plips to wake the BeCM and therefore cause the battery to go flat. I think it will probably help the key signal to get through in high noise situations.
As far as I know the reader coil around the ignition switch is only a transmitter, the mobilisation is returned via radio to the receiver at the back. Plipping right next to the rear window may have worked.
Will try to look up the part number when I get back to work.
I always advise my customers to have one fitted.
Shaun

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