1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Welcome To LandyZone!

    LandyZone is the biggest Land Rover forum on the net. We have plenty of very knowledgable members so if you have any questions about your Land Rover or just want to connect with other Landy owners, you're in the right place.

    Registering is free and easy just click here, we hope to see you on the forums soon!

P38A Door Latch Issue

Discussion in 'Range Rover' started by tank93, Apr 16, 2019.

< Previous Thread | Next Thread >
  1. tank93

    tank93 Member

    Joined:
    Feb 22, 2009
    Posts:
    82
    Likes Received:
    8
    Morning All,

    Have a strange issue on my 1997 P38a Range Rover which I am hoping somebody can advise me on or give me some pointers.

    Sometimes when I get out of the car and close the door the locks activate on their own (go down and back up again) without me pressing the remote.

    Is this likely to be a lock actuator problem or the outstation playing up (not sure what the outstation actual does if I am honest hence asking).

    Thank you
     
  2. brianp38dse

    brianp38dse Well-Known Member

    Joined:
    May 13, 2014
    Posts:
    5,665
    Likes Received:
    2,071
    Location:
    heathrow
    try Martyuk`s lock test, but sounds like new latch time.
     

    Attached Files:

  3. Grrrrrr

    Grrrrrr Jedwood Spannerhands

    Joined:
    Jul 8, 2012
    Posts:
    11,070
    Likes Received:
    2,229
    Location:
    Buckinghamshire, UK. ('95 DT)
    +1 ^^^

    Might have to pull the door card off and make sure the wires aren't fouling on the window mechanism or similar. They should be tied out the way. Might also be worth checking the boot switch. If it is earthing through that from water ingress or similar it might cause some issues.
     
  4. Rubberknees

    Rubberknees Active Member

    Joined:
    Mar 25, 2019
    Posts:
    143
    Likes Received:
    84
    Location:
    Rotherham
    +1 on new latch mine was doing that whilst driving and at park also tailgate opening problems , fitted new latch cured it. Plenty of guidance on here how to change it, bit fiddly but very doable.
     
  5. tank93

    tank93 Member

    Joined:
    Feb 22, 2009
    Posts:
    82
    Likes Received:
    8
    Thank you I will try the test. Can these latches be overhauled and repaired (not sure if there is a repair kit available) or is the only option an expensive new latch?
     
  6. Grrrrrr

    Grrrrrr Jedwood Spannerhands

    Joined:
    Jul 8, 2012
    Posts:
    11,070
    Likes Received:
    2,229
    Location:
    Buckinghamshire, UK. ('95 DT)
    Yours is 97 which is a changeover year, I think. They can be refurbed. The older ones with 2 plugs are simpler but the later ones can be done with a bit of fiddling. @martyuk refubs and sells them on his site although I am sure he'd tell you which microswitches he uses. Motors are a LOT harder to find. MGF ones from the same year fit and just clip in and out. I never found any new ones.
     
    RangeRoller dt likes this.
  7. tomcat59alan

    tomcat59alan Well-Known Member

    Joined:
    Apr 3, 2011
    Posts:
    10,644
    Likes Received:
    2,152
    Location:
    wirral and triquivijate
    I found a company in Vietnam but they would only supply a minimum of 1000
     
    Bagshot likes this.
  8. DanClarke

    DanClarke Well-Known Member

    Joined:
    Mar 13, 2009
    Posts:
    3,502
    Likes Received:
    3,183
    Location:
    Benfleet, Essex
    Ghost "clunks" of the locks is usually the microswitches failing as said above. Always a bit spooky that. Fun when you travel over bumpy ground and the cill-buttons are popping up and down. :)
     
  9. Rubberknees

    Rubberknees Active Member

    Joined:
    Mar 25, 2019
    Posts:
    143
    Likes Received:
    84
    Location:
    Rotherham
    Its great when you can tell mother inlaw its her talking that's causing the locks to play up, used to keep her quiet for a while anyway:D:D:D
     
    Mark Piercy and Grrrrrr like this.
  10. martyuk

    martyuk Well-Known Member

    Joined:
    Aug 31, 2012
    Posts:
    736
    Likes Received:
    257
    Location:
    Swindon, UK
    I use DC series microswitches - 0.1A for the key switch on drivers latches, door ajar switches on all latches and the central locking switch on the LHF latch. I use a 5A rated version on the CDL on the RHF latch as the tailgate motor grounds through it - so hopefully the higher rated contacts will last for a bit longer. They aren't a drop in replacement though - I have to pin them in with a couple of bits of threaded rod - as the '97 on models had all the switches formed into one moulded block... which I get, but it makes them a pain to swap!!!

    I have a few dead latches which have been returned/given to me so I might be able to supply a limited number of latches at some point - once I actually get some time off from work and can get cracking on them at home.

    Any idea what they would charge for 1000 of them? It's tempting for me, I'm not going to lie!
     
    Grrrrrr likes this.
  11. Datatek

    Datatek Well-Known Member

    Joined:
    Feb 5, 2009
    Posts:
    32,176
    Likes Received:
    1,492
    Location:
    Near Poitiers SW France
    That's interesting, I use Cherry brand 2 amp micro switches for all 3. The moulded block is a PITA.
     
  12. tomcat59alan

    tomcat59alan Well-Known Member

    Joined:
    Apr 3, 2011
    Posts:
    10,644
    Likes Received:
    2,152
    Location:
    wirral and triquivijate
    I cannot remember at the moment, I'll have to power up my old laptop and see if I can find the email.wasn't a mega amount
     
    Grrrrrr likes this.
  13. martyuk

    martyuk Well-Known Member

    Joined:
    Aug 31, 2012
    Posts:
    736
    Likes Received:
    257
    Location:
    Swindon, UK
    Yeah, the ones I got from RS were Cherry made switches - I think DC1C-A1AA and DC3C-A1AA from memory... though the last time I ordered some, it seemed that they didn't have Cherry made switches in stock (they were on backorder for something silly like 6 months) so I went with a different brand - but same current capacity/size and still IP rated.

    Drop me a message if you do find it... 1000 motors seems a lot, but it's one of those things... I could probably get another 10 or so door latches finished in one go by having a supply of motors, as that's the main bit I'm out of, as a fair number of the return units that DO come back have burnt out motors in them. I bought 500 of the HEVAC connectors when I ordered them, and still have a couple of hundred left about 3/4 years on - but it's something worth having a stock of, and CDL motors I would put in the same bracket!
     
  14. wammers

    wammers STILL BREATHING. Donater

    Joined:
    Oct 19, 2008
    Posts:
    54,231
    Likes Received:
    8,906
    Location:
    Preston Lancs.
    You could buy them use one and give the others to your friends for Christmas, birthdays Etc.
     
  15. tomcat59alan

    tomcat59alan Well-Known Member

    Joined:
    Apr 3, 2011
    Posts:
    10,644
    Likes Received:
    2,152
    Location:
    wirral and triquivijate
    I haven't got that many friends but maybe I would if I bought the motors.;):D
     
    Grrrrrr likes this.
  16. tomcat59alan

    tomcat59alan Well-Known Member

    Joined:
    Apr 3, 2011
    Posts:
    10,644
    Likes Received:
    2,152
    Location:
    wirral and triquivijate
    Will do Marty.
     
  17. wammers

    wammers STILL BREATHING. Donater

    Joined:
    Oct 19, 2008
    Posts:
    54,231
    Likes Received:
    8,906
    Location:
    Preston Lancs.
    True. It's amazing how many people are friendly when you have something they need. ;):D
     
    tomcat59alan likes this.
  18. pwood999

    pwood999 Well-Known Member

    Joined:
    Nov 6, 2006
    Posts:
    835
    Likes Received:
    200
    Location:
    Near Heathrow.
    I would certainly chip in for 8 of the motors.
     
  19. wammers

    wammers STILL BREATHING. Donater

    Joined:
    Oct 19, 2008
    Posts:
    54,231
    Likes Received:
    8,906
    Location:
    Preston Lancs.
    Alan says they are £300.00 each. :D
     
    tomcat59alan likes this.
  20. tank93

    tank93 Member

    Joined:
    Feb 22, 2009
    Posts:
    82
    Likes Received:
    8
    Just to close this one off I fitted a new front passenger side door latch today and thankfully the bouncing locks have stopped so guess those micro switches were playing up in the old latch.
     
    tomcat59alan and Grrrrrr like this.
< Previous Thread | Next Thread >