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Thread: TD5 Flashing B on dashboard

  1. 25th November 2023, 07:23 AM #1
    Henryque
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    TD5 Flashing B on dashboard

    Hi, everyone

    I need some help with my disco, i got an TD5 2002 AT, i took it on a negociation, so i dont know if the previous owner was a good proprietary.
    Well, i will explain what happens. The engine starts fine, but after starting the engine the odometer value blinks on dashboard for some minutes and them it becomes normal, when the odometer stop blinking the transmission selected on dashboard stop showing the correct gear and then appears an crossed B blinking, when driving the car seems like it lacks of power, and after turning on the air conditioning it became worse, so weak that it cannot even move from inertia, only if we turn off the air conditioning. All the functions on interior works normaly, as windows, eletric rear view mirror, etc.

    Obs: the radio isnt original, its an alpine, i dont know if it that interferes in something.
    Obs2: I checked the battery voltage with an multimeter, and it shows 12.5v, and after starting the engine it goes to 14.3v
    Obs3: there is an red light flashing when the doors are closed

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  2. 25th November 2023, 07:28 AM #2
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    p38arover
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    There is a thread about this here: Help with odometer display ..gear shift display - Land Rover Forums - Land Rover Enthusiast Forum
    Ron B.
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  3. 25th November 2023, 07:30 AM #3
    Henryque
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    Quote Originally Posted by p38arover View Post
    There is a thread about this here: Help with odometer display ..gear shift display - Land Rover Forums - Land Rover Enthusiast Forum
    Thanks
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  4. 25th November 2023, 09:43 AM #4
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    p38arover
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    The XYZ switch isn't a common failure but it's common enough to warrant looking at.

    They are NOT cheap!

    s-l1600.jpg

    I've never tried opening one up to see if it could be cleaned.
    Ron B.
    VK2OTC

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  5. 25th November 2023, 10:34 AM #5
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    RRT
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    See this vid re repairing the xyz switch

    Land Rover Discovery 2 XYZ Switch Repair - YouTube
    2004 Discovery 2a TD5 Auto Aspen Green AKA Robin
    2000 Discovery 2 TD5 Auto Alverston Red AKA Edward
    1997 Discovery 1 TDi Manual White - Gone but not forgotten
    1994 Discovery 1 V8 Auto - Gone once it consumed half the worlds resource of oil
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  6. 25th November 2023, 03:55 PM #6
    discorevy
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    More likely to be the Fuse box behind the knee panel if it has had water from a leak, or BCU.

    The lack of power could be because the Auto is in Limp mode (3rd gear if stationary )
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  7. 25th November 2023, 05:28 PM #7
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    sierrafery
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    Quote Originally Posted by discorevy View Post
    More likely to be the Fuse box behind the knee panel if it has had water from a leak, or BCU.

    The lack of power could be because the Auto is in Limp mode (3rd gear if stationary )
    +1 for that, crossed B has nothing to do with the XYZ switch ^^^ ... the flashing red led is normal if the vehicle's alarm is on factory setting
    Discovery Td5 (2000), manual, tuned
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  8. 25th November 2023, 05:38 PM #8
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    RRT
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    Never stop learning, it would appear that there are two designs of the XYZ switch, this vid has the update one for the D2a
    how to fix M and S on discovery 2. xyz switch 2003 td5 land rover repair - YouTube
    2004 Discovery 2a TD5 Auto Aspen Green AKA Robin
    2000 Discovery 2 TD5 Auto Alverston Red AKA Edward
    1997 Discovery 1 TDi Manual White - Gone but not forgotten
    1994 Discovery 1 V8 Auto - Gone once it consumed half the worlds resource of oil
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  9. 26th November 2023, 12:55 AM #9
    Henryque
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    Quote Originally Posted by discorevy View Post
    More likely to be the Fuse box behind the knee panel if it has had water from a leak, or BCU.

    The lack of power could be because the Auto is in Limp mode (3rd gear if stationary )

    Yes, it seems like a limp mode, i was checking some content about that BCU issue, but differently, mine still has the electrical functions inside the car working. But i will take a look on fuse box to see if it is ok
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  10. 26th November 2023, 12:59 AM #10
    Henryque
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    Quote Originally Posted by p38arover View Post
    The XYZ switch isn't a common failure but it's common enough to warrant looking at.

    They are NOT cheap!

    s-l1600.jpg

    I've never tried opening one up to see if it could be cleaned.

    But even if isnt appearing any M and S light on dashboard, it could be in a error state ?

    Sry for my lack of knowledge
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