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Thread: Electrical gremlins - Xmas tree of alerts: no ABS, no DSC, Park brake fault, more

  1. #1
    2010LR4 Guest

    Electrical gremlins - Xmas tree of alerts: no ABS, no DSC, Park brake fault, more

    Celebrating 2000 kms of trouble free motoring after spending a LOT of money fixing things up and suddenly it lights up like a Xmas tree: DSC disabled, No ABS, suspension lowered for safety, park brake fault.

    Threw the errors for a few test drives and on the way in to get it looked at and once there the faults go away, sheesh.

    The only ting I’d done differently was I put in two LED bulbs to replace a couple of interior lights. Knowing the genius of British engineering I pulled them out. Problem seemed to go away on multiple trips after that. But then drove 200+ kms and faults started again. Only thing different: we just plugged in our phones to charge. Unplugged, restarted car and faults went away.

    What do you think? Battery?

  2. #2
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    I would suspect an ABS wheel speed sensor fault. The fault codes need to be read.
    MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
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  3. #3
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    Codes. We need codes Electrical gremlins - Xmas tree of alerts: no ABS, no DSC, Park brake fault, more

    Simple checks would be (in absence of code reader):

    Battery terminals secure?
    Age of battery?
    Charge condition?

    How many Km? If around 150k on, has it had alternator replaced yet? (It’s going to fail very soon)

  4. #4
    2010LR4 Guest
    Quote Originally Posted by Graeme View Post
    I would suspect an ABS wheel speed sensor fault. The fault codes need to be read.
    Yes, the problem is that there were no faults! They put the scanner on it and there was no record of any faults. So weird. I even took a photo to show but the scanner showed nothing. That’s why they were thinking it might be a battery on the way out.

    B94AF196-3804-4D1A-BB27-CA7AE9A05197.jpg

  5. #5
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    Quote Originally Posted by 2010LR4 View Post
    Yes, the problem is that there were no faults! They put the scanner on it and there was no record of any faults. So weird. I even took a photo to show but the scanner showed nothing. That’s why they were thinking it might be a battery on the way out.

    B94AF196-3804-4D1A-BB27-CA7AE9A05197.jpg
    What scanner? Many can’t get into the root of the system.

  6. #6
    2010LR4 Guest
    Quote Originally Posted by Tombie View Post
    What scanner? Many can’t get into the root of the system.
    Battery terminals secure.
    NO idea on alternator. Bought the car second hand and have service history but no real view as to replaced parts. I started to think it might be alternator.

    Battery is not the original one, no idea when it was last replaced.

    They used the big scanner at the service place so I’m sure a Pro tool would pick everything up.

    Voltage on the battery sitting out in the drive is 12.71. Not sure whether that’s a good reading or not.

  7. #7
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    What about the the old brake pedal switch, that can bring up a lot of weird faults, and it is pro'ly worth buying one to carry as a spare anyway?
    2005 D3 TDV6 Present
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  8. #8
    2010LR4 Guest
    Quote Originally Posted by RANDLOVER View Post
    What about the the old brake pedal switch, that can bring up a lot of weird faults, and it is pro'ly worth buying one to carry as a spare anyway?
    Oh yes I remember reading about this somewhere. It’s really annoying that a car like this can throw all these sorts of faults from things like bulbs and switches. Come on seriously. There are obviously no real faults with the ABS etc as on restart the errors go away and I can drive normally. I am losing trust in this car. I don’t want a car that fails like this from a non-fault. Most other cars if you have something like this still allow you to drive normally.

  9. #9
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    An intermittent fault can easily not exist on a restart in which case the faults need to be read before switching off the ignition, although a LR specific reader should still show old uncleared faults.
    A faulty wheel speed sensor generates an ABS fault which WILL cause all the other faults and conditions.

    Check behind the left front wheel in case the wiring harness has pulled away from its plastic clips and has been rubbed by the inside edge of the tyre.
    MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi, RTK base station using LoRa

  10. #10
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    Quote Originally Posted by 2010LR4 View Post
    Oh yes I remember reading about this somewhere. It’s really annoying that a car like this can throw all these sorts of faults from things like bulbs and switches. Come on seriously. There are obviously no real faults with the ABS etc as on restart the errors go away and I can drive normally. I am losing trust in this car. I don’t want a car that fails like this from a non-fault. Most other cars if you have something like this still allow you to drive normally.
    Every vehicle since the XF falcon has cascading issues when something goes wrong electrically.

    Just find the fault - and find out what “Pro Tool” your workshop used. Unless they are LR specialists I doubt they can read everything.

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