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Thread: LHS Signature light not working

  1. #1
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    LHS Signature light not working

    Hi,

    I just noticed that the LHS signature light on my D4 is not working i.e. only the RHS signature light is on with the light switch in park setting. AFAIK these are LED.

    I've checked the fuse (F24 lower glovebox) and disconnected and re-connected the electrical plug to the headlight assembly. The other lamps in the LHS assembly work i.e. the headlight (HID) and turn signal are fine.

    Yes, this is a relatively trivial issue, but since the D4 is new to me this week I'm watching for any issues that might be covered by the (used) dealer warranty.

    Any other ideas of things to check? I guess I should remove the headlight and try to test the sig lamp somehow... I didn't think that LEDs could 'blow'?

    Thanks. The Land Rover experience has begun!
    Discovery D4 (L319) 2014; Tuffant Steel Mk1, Maxxis AT811 265/65, APT compressor guard/sliders/transmission-guard, ARB Summit BBar, X76 UHF, Autosafe barrier, Rijidij carrier, Longranger 74l aux tank, Darche Streamliner 1250 RTT.

  2. #2
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    Do you have access to a scan tool/fault computer? You might have a BCU fault
    "Land Rover - making mechanics out of everyday motorists for nearly 70 years"

  3. #3
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    Not being funny, but it's not because you've left the indicator on? I don't know if its relevant for the disco, but in some euro cars that's used to put lights on one side when parked - a legal visibility requirement, that would show as just this?

  4. #4
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    What is a signature light ?
    MY08 TDV6 SE D3- permagrin ooh yeah
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  5. #5
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    LED’s can fail. They’re an electronic component and can fail, but shouldn’t.
    2010 TDV6 3.0L Discovery 4 HSE
    2007 Audi RS4 (B7)

  6. #6
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    Thanks for the replies.

    Yes I have a Gap IIDTool I'm yet to transfer from the previous owner - I'll check for BCU codes when I get it going this weekend.
    Edit: No relevant codes. Two minor stored 'U' codes from when the vehicle had 59km on the clock! Cleared them.

    Here's a pic of the one-eyed signature lamp lit.

    IMG_2754.jpg
    Discovery D4 (L319) 2014; Tuffant Steel Mk1, Maxxis AT811 265/65, APT compressor guard/sliders/transmission-guard, ARB Summit BBar, X76 UHF, Autosafe barrier, Rijidij carrier, Longranger 74l aux tank, Darche Streamliner 1250 RTT.

  7. #7
    BradC is offline Super Moderator
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    I like the one on the passenger side.

  8. #8
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    Silly Question

    But do you know for sure it was working.

    I had a 2016 D4 and noticed one day when i was opening front gate that Signature DRL was not working.

    Car was 6 months old when i noticed it

    Used to got to work in the dark and come home in the dark - so headlights masked it.

    Turned out to be a pinched wire during assembly.
    Cheers

    Chuck

    MY 23.5 P300 110 Defender with Ediff & ATPC
    MY 21 76 Series Landcruiser
    Ex D1, D2, D2a, D3, D4, Prado, D4, D5,
    73 series 3 109 Truck Cab Tray Body, 79 Series,

  9. #9
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    Quote Originally Posted by chuck View Post
    Silly Question

    But do you know for sure it was working.

    I had a 2016 D4 and noticed one day when i was opening front gate that Signature DRL was not working.

    Car was 6 months old when i noticed it

    Used to got to work in the dark and come home in the dark - so headlights masked it.

    Turned out to be a pinched wire during assembly.
    Thanks chuck. Not a silly question. I've had the car less than a week - bought from a dealer. The headlights come on when transmission is in P or R or S regardless of the headlight switch position. Hence I did not notice the dead signature light, just as you didn't, while the headlights are on. The signature light is on alone when the car door is opened, which is when I noticed the dead one.

    Where was the pinched wire?
    Discovery D4 (L319) 2014; Tuffant Steel Mk1, Maxxis AT811 265/65, APT compressor guard/sliders/transmission-guard, ARB Summit BBar, X76 UHF, Autosafe barrier, Rijidij carrier, Longranger 74l aux tank, Darche Streamliner 1250 RTT.

  10. #10
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    Scott

    Memory fails me and i don't want to guess and lead you up the garden path.

    I do remember it took the dealer quite some time to find it.

    Cheers
    Cheers

    Chuck

    MY 23.5 P300 110 Defender with Ediff & ATPC
    MY 21 76 Series Landcruiser
    Ex D1, D2, D2a, D3, D4, Prado, D4, D5,
    73 series 3 109 Truck Cab Tray Body, 79 Series,

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