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!

P38 EAS COMMS PROBLEMS

Discussion in 'Range Rover' started by Colin from Hull, Mar 25, 2018.

< Previous Thread | Next Thread >
  1. Colin from Hull

    Colin from Hull Active Member

    Joined:
    Apr 9, 2008
    Posts:
    248
    Likes Received:
    0
    Hi
    Went to my car p38 1997 4.0se Range Rover Friday evening to try and remove Eas fault and had not problems connecting and getting good idle.[​IMG]
    Then went out Saturday afternoon and connected and couldn't get any comms, checked comm port and driver and everything seemed right....... so why doesn't it work.[​IMG] [​IMG] [​IMG] [​IMG] [​IMG]
    Tried to load photos of my EAS to show you all but struggle with doing even that......I'm great with spanners but crap with laptops.....:):)
     
    Last edited: Mar 25, 2018
  2. Grrrrrr

    Grrrrrr Well-Known Member

    Joined:
    Jul 8, 2012
    Posts:
    9,383
    Likes Received:
    1,461
    Location:
    Buckinghamshire, UK. ('95 DT)
    Is the ODB plug good and clean? Connector behind the kick panel?
     
  3. Orangebean

    Orangebean Active Member

    Joined:
    Jun 10, 2016
    Posts:
    137
    Likes Received:
    38
    Location:
    South Hams, Devon
    Have you checked the diagnostics fuse Colin? F33 IIRC.
     
  4. Mark Piercy

    Mark Piercy Well-Known Member

    Joined:
    Jul 11, 2016
    Posts:
    2,396
    Likes Received:
    495
    Location:
    sud ouest France
    Sometimes I have to swap between comms 4 and 5! Check as said above also.;)
     
  5. Colin from Hull

    Colin from Hull Active Member

    Joined:
    Apr 9, 2008
    Posts:
    248
    Likes Received:
    0
    Hi
    I have checked the inline plug connection behind the side panel and the socket underneath which lead plugs into.... and all looks well, tried both comm's 6 and 8 same problem.
    I will check fuse or do you mean relay.......I have swapped the EAS relay with another one....made no difference.
    Thanks everyone for replies
    Colin
     
  6. Orangebean

    Orangebean Active Member

    Joined:
    Jun 10, 2016
    Posts:
    137
    Likes Received:
    38
    Location:
    South Hams, Devon
    Fuse 33 is the power feed for diagnostics. If that blows, no diagnostics
     
  7. Colin from Hull

    Colin from Hull Active Member

    Joined:
    Apr 9, 2008
    Posts:
    248
    Likes Received:
    0
    Hi
    Checked Fuse 33 5amp this is ok.........cheers!
     
  8. Grrrrrr

    Grrrrrr Well-Known Member

    Joined:
    Jul 8, 2012
    Posts:
    9,383
    Likes Received:
    1,461
    Location:
    Buckinghamshire, UK. ('95 DT)
    Seem to remember if the delay timer relay has been replaced with a standard automotive relay then that will kill comms? By inference if it is toast then that would also kill it.

    Have you tried the diag on a known good car?
     
  9. wammers

    wammers STILL BREATHING. Donater

    Joined:
    Oct 19, 2008
    Posts:
    50,694
    Likes Received:
    6,466
    Location:
    Preston Lancs.
    Check fuses 24,33 and 44. You MUST have a functioning delay relay fitted.
     
  10. Colin from Hull

    Colin from Hull Active Member

    Joined:
    Apr 9, 2008
    Posts:
    248
    Likes Received:
    0
    Hi
    Is the Delay Relay the one under the seat, I will check fuses later tonight.
    No I haven't tried my diag on any other car.
    I also got another lead (serial to USB) from work, this hasn't made any difference, tried it today.
    I'm getting FF,1 FF,1 in Rx but only PP appears in Tx.
    Cheers
    Colin
     
  11. brianp38dse

    brianp38dse Well-Known Member

    Joined:
    May 13, 2014
    Posts:
    4,376
    Likes Received:
    1,447
    Location:
    heathrow
    Yes the delay relay is the black one under passenger seat.
     
  12. Colin from Hull

    Colin from Hull Active Member

    Joined:
    Apr 9, 2008
    Posts:
    248
    Likes Received:
    0
    Hi
    I have looked at all the fuses and everything is fine, I also swapped the delay relay with one from another Range Rover made no difference.
    I also decided to try my Eas lead on my other Range Rover and Im getting same problem no IDLE.
    so its got to be my lead.....right?
    I did a continuity test on the lead......and only got readings on four pins would this be right.....how many wires/ pins are used used don't wiring diagram
     
  13. wammers

    wammers STILL BREATHING. Donater

    Joined:
    Oct 19, 2008
    Posts:
    50,694
    Likes Received:
    6,466
    Location:
    Preston Lancs.
    Did you put the driver for the USB to serial adaptor into your laptop BEFORE you connected to car. The generic Windows drivers usually do not work.
     
    kurtjohnson10 likes this.
  14. Orangebean

    Orangebean Active Member

    Joined:
    Jun 10, 2016
    Posts:
    137
    Likes Received:
    38
    Location:
    South Hams, Devon

    OBD connector location 12 to DB9 location 3
    OBD connector location 11 to DB9 location 2
    OBD connector location 1 to DB9 location 7
    OBD connector location 5 to DB9 location 5
     
  15. Colin from Hull

    Colin from Hull Active Member

    Joined:
    Apr 9, 2008
    Posts:
    248
    Likes Received:
    0
    Hi
    When I have used this EAS lead before....I have just plugged in played never had anything to do with drivers. whilst having this problem I have followed these instruction........Go into Device Manager screen (Control Panel>System>Device Manager) and check which port the USB adapter has been assigned to and check that the drivers from the CD are assigned to it. Then ensure that the same COM port is selected in the EAS unlock program.

    How do I check that the drivers from the CD are assigned to it, don't really know what this means and never had to this before when working correctly?
    I have double clicked on the COM PORT which brings up a window stating 'this device is working properly
     
  16. Colin from Hull

    Colin from Hull Active Member

    Joined:
    Apr 9, 2008
    Posts:
    248
    Likes Received:
    0
    Hi
    My continuity test does match yours Orangebean
     
  17. Colin from Hull

    Colin from Hull Active Member

    Joined:
    Apr 9, 2008
    Posts:
    248
    Likes Received:
    0
    Hi
    Been on RSW Solutions website and in the list of FAQ is show my problem receiving PP in Rx is down to comm's problem, well I've gone into Device Manger seen which comms port and selected the same port before intialising.:(
    Also been informed that continuity test of the OBD lead isn't good enough test to prove a good lead, its a bit more complicated at the ODB end.
    So can anyone recommend a supplier of a new lead / EAS package.
     
  18. wammers

    wammers STILL BREATHING. Donater

    Joined:
    Oct 19, 2008
    Posts:
    50,694
    Likes Received:
    6,466
    Location:
    Preston Lancs.
    Datatek on here PM him.
     
    Grrrrrr likes this.
  19. Grrrrrr

    Grrrrrr Well-Known Member

    Joined:
    Jul 8, 2012
    Posts:
    9,383
    Likes Received:
    1,461
    Location:
    Buckinghamshire, UK. ('95 DT)
    +1.
     
  20. Colin from Hull

    Colin from Hull Active Member

    Joined:
    Apr 9, 2008
    Posts:
    248
    Likes Received:
    0
    Hi
    Sent him a message
    Just been given another thing to check which should prove everything is ok on my vehicle to get comms.
    the OMD socket in my car...... I should have 12 volts on pins 4 and 16
     
< Previous Thread | Next Thread >