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Thread: Electronics issue My11 Discovery 4

  1. #1
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    Electronics issue My11 Discovery 4

    Gday everyone. My 2011 Discovery 4 occasionally flashes through the amber warning light sequence on the dash and the suspension seems to lower, it has increased of late (144,000k), if you touch the ride height button while this is going on it will say suspension lowered for safety.
    When this happens I stop and turn the car off for a minute or so, restart, and it seems to re-set and be ok for a while - but is unpredictable, sometimes it shows a message as you move off saying, normal height selected and all is good for sometimes long periods.
    Could anyone please shed any light on what may be the cause of this issue and what would need to be done to rectify it? Other than this particular, hopefully minor issue, (and a failed aircon compressor that will need replacing before next summer), the car is fantastic and I plan on keeping it for the long haul.
    I'm loacted on the North West Coast of Tasmania and would really appreciate finding a mechanic that knows Landrovers.

    I would really appreciate any advice thanks.

  2. #2
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    The fault codes really need to be read. Lowering for safety indicates a fault is occurring with the ABS ecu but the codes will indicate what is amiss.
    Many owners have bought their own diagnostic tool for convenience and likely cost savings over time, especially if they do any work themselves.
    MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
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  3. #3
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    Justin Cooper on here is the LR guru in Tassy.
    But he may be a bit far from you.

    As Graeme said, reading the codes is the only way to find out what is going on, without doing this, you are just guessing.
    Paul

    D2,D2,D2a,D4,'09 Defender 110(sons), all moved on.

    '56 S1,been in the family since...'56
    Comes out of hibernation every few months for a run

  4. #4
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    Justin Cooper contact

    Thanks scarry, would you have Justins contact number/details, I'm heading south with the van on the 17th so checking with him would be no problem. Phill.

  5. #5
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    Quote Originally Posted by Phillip John View Post
    Thanks scarry, would you have Justins contact number/details, I'm heading south with the van on the 17th so checking with him would be no problem. Phill.
    Sorry I don’t,and living in Qld have never needed it.
    Someone on here will chime in no doubt,he is on AULRO FB a bit as well if that helps.
    Or PM him on here
    Paul

    D2,D2,D2a,D4,'09 Defender 110(sons), all moved on.

    '56 S1,been in the family since...'56
    Comes out of hibernation every few months for a run

  6. #6
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    '51 Series 1 80"
    '12 Defender 90


  7. #7
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    Thank you

    Thanks Larry, really appreciate it. Phill.

  8. #8
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    Battery Condition

    Have had it suggested I get the battery tested as when they start to die they can cause all sorts of issues with the electronics.

    Makes sense as the car is lucky to be used once a week and have had to jump start it a few times when have left the doors and tailgate open for too long obviously draining it, battery is about 3 years old now.

  9. #9
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    Assuming battery and alternator all ok, next place to look is the EAS compressor. The dessicant turns to dust and blocks the valves at each corner. The compressor is serviceable and air lines and valves can be blown out.

    Note its perfectly normal for the car to go to normal height from access height if the speed is over 25kmh.

    Also check earth connections to the chassis and body from the battery.

  10. #10
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    Problem hopefully solved.

    Update.

    So had a new battery installed yesterday by RACT, they (and Justin) said the old battery wasn't the right one (too small), but it's been in the car for a bit over 3 years now so I guess has done a pretty good job considering.

    Started way easier and drove for a bit over 2 hours today and no issues, now off to Justin on Monday morning for a check over.

    Thanks everyone for your in-put, much appreciated.

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