P38A Ghost in the car

simoncant · Jun 2, 2020

Hi all
P38 Thor 2000.
I have inherited a ghost. The auto locking engages and disengages at random moments when parked or when traveling and occasionally when I operate my garage doors.... but not always. Annoying trait and cant get my head round it.
Any thoughts.

Many thanks
Simon

kermit_rr · Jun 2, 2020

i'm not aware of any autolock/unlock feature, mines a 2000 also

simoncant · Jun 2, 2020

OK I guess I mean central locking-sorry.

marjon · Jun 2, 2020

Sounds like your drivers door latch is showing signs of wear, Soon to be a failure with all the pain that goes with it.

Somebody else will confirm, why the garage door affects it I am not sure is your door a remote door?

J

simoncant · Jun 2, 2020

Yes operated with a remote fob. When driving it is all the locks apart from the drivers that lock and unlock randomly.

marjon · Jun 2, 2020

Do you know what frequency the garage door remote is?

J

Datatek · Jun 2, 2020

Micro switches in the drivers door lock.
Many wireless devices use the same frequency band. Unfortunately the MK1 & MK2 FOB receivers in the P38 are a poor design so they respond to a wide range of frequencies. It wakes up the BECM and can prevent unlocking but I have never heard of it causing the car to either lock or unlock as the correct rolling code is required for that to happen.

simoncant · Jun 2, 2020

I have got a new fob from Land rover that worked immediately. Could this be the problem and is there any cure?

Datatek · Jun 2, 2020

simoncant said:
I have got a new fob from Land rover that worked immediately. Could this be the problem and is there any cure?

It's not the FOB that causes a problem but the receiver in the car. In your case it sounds like the micro switches in the drivers door are the problem.

simoncant · Jun 2, 2020

Blimey, just checked out the price for new assembly. Is there a cheaper option or do I just go for it?

marjon · Jun 2, 2020

Yes contact @martyuk he reconditions them and may have some ready.

He will explain everything if he’s around

J

RangeRoller dt · Jun 2, 2020

Ghost locking is the term. If you put it in the searchbar theres plenty on it.

oakey · Jun 2, 2020

+1 on driver's door lock
Marty does a superb job on refurbed lock and if you buy a new one then could send the old to Marty for spares to help someone else

tomcat59alan · Jun 2, 2020

Isn't there a problem "ghost locking/ unlocking connected to the tailgate button.?

Rubberknees · Jun 2, 2020

+1 on drivers door latches. Had it on mine. Think marty has a check/test list somewhere you can try

Datatek · Jun 2, 2020

tomcat59alan said:
Isn't there a problem "ghost locking/ unlocking connected to the tailgate button.?

There is, but I think it still might come down to the drivers door lock, it did on mine.

oakey · Jun 2, 2020

I think the tailgate problem originates in the Driver's door lock

Rubberknees · Jun 2, 2020

oakey said:
I think the tailgate problem originates in the Driver's door lock

Think its something to do with the earth for tailgate button comes from doorlatch. My tailgate stopped opening until I put new door latch in

DanClarke · Jun 2, 2020

oakey said:
I think the tailgate problem originates in the Driver's door lock

The power for the rear tailgate is fed through one of the drivers doorlock microswitches, this is what helps to burn them out .
@martyuk fits better quality higher current-rating microswitches in his repaired/refurbished units to prevent future burn-out.

Grrrrrr · Jun 2, 2020

DanClarke said:
The power for the rear tailgate is fed through one of the drivers doorlock microswitches, this is what helps to burn them out .
@martyuk fits better quality higher current-rating microswitches in his repaired/refurbished units to prevent future burn-out.

Yep, the centre one. Can easily be replaced on early models, bit more involved on later ones.

P38A Ghost in the car

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