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Thread: Discovery 3 fault codes help please

  1. #1
    Join Date
    Mar 2015
    Location
    Horsham Victoria
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    456

    Discovery 3 fault codes help please

    Hi our 2009 Discovery 3 Tdv6 is throwing up some codes, I clear them with nanocom and after driving a bit they come back, codes are

    Code U0010
    Medium speed CAN communication bus.
    (Pending)
    Bus signal/message failure

    Code U0132
    Lost communication with ride level Carl module / lost communication with suspension ctrl module A

    Code U0164
    Lost communication with heating ventilation and air conditioning control module
    (Pending)

    Code P045D
    Exhaust gas recirculating B control circuit. High
    ( intermittent)
    General failure information

    These are in Read tested , no faults in Read permanent.

    Can anyone give some advice as to what problem/s may be evolving.
    Thanks in advance
    Rob

  2. #2
    Join Date
    Oct 2012
    Location
    Perth
    Posts
    1,337

    Discovery 3 fault codes help please

    The last one EGR failure Id bet on as is an expected and common fault (with all diesel engines). Choices are replacing with new or a ECU software patch along with physically deleting them.

    Touch wood - my MY08 still on originals at 235k km but something I want to delete ASAP

  3. #3
    Join Date
    Mar 2015
    Location
    Horsham Victoria
    Posts
    456
    Just to add to original post.

    Vehicle has 197000 and still drives great.
    Rob

  4. #4
    Join Date
    Jun 2013
    Location
    Orroroo
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    You'll probably find if you clear them they will eventually come back, but you won't ever notice why the got logged in the first place, And won't notice what problem they are causing either!

  5. #5
    Join Date
    Jan 1970
    Location
    Canberra
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    16,704
    The only one of concern is

    Code P045D
    Exhaust gas recirculating B control circuit. High
    ( intermittent)
    General failure information

    You need new EGRs or get them blanked and ECU patch installed to cancel the check engine light.


    Communication errors come and go and are only a concern if consistent and cause fault lights and messages.

    Garry
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
    1957 Series 1 88" Station Wagon

  6. #6
    Join Date
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    Location
    Orroroo
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    Some of the EU4 spec tdv6's don't actually put the check engine light on if you have failed egr's, does anyone know if simply blanking these is enough? Or is there other engine related issues that can be caused?

    Cheers
    James

  7. #7
    Join Date
    Mar 2015
    Location
    Horsham Victoria
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    456
    Thanks
    I have deleted all my other diesel egrs for some reason I was going to leave this one, probly not now thou.

  8. #8
    Join Date
    Jan 1970
    Location
    St Helena,Melbourne
    Posts
    13,679
    Quote Originally Posted by shack View Post
    Some of the EU4 spec tdv6's don't actually put the check engine light on if you have failed egr's, does anyone know if simply blanking these is enough? Or is there other engine related issues that can be caused?

    Cheers
    James
    All i have heard is the opposite, early ones are fine but EU4 need the software patch to remove the CEL.
    I'll find out soon as i just blanked mine.
    MY08 TDV6 SE D3- permagrin ooh yeah !
    98 TDI AUTO SE DISCO - gone and will be missed.
    2003 Dingo offroad camper trailer
    1998 Triumph Daytona T595
    1974 VW Kombi bus
    1958 Holden FC special sedan

  9. #9
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    Jun 2013
    Location
    Orroroo
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    670
    Quote Originally Posted by loanrangie View Post
    All i have heard is the opposite, early ones are fine but EU4 need the software patch to remove the CEL.
    I'll find out soon as i just blanked mine.
    Yeah as far as I know the early EU4 didn't need patching to stop throwing a CEL, and none of the EU3 ones needed it either.

    I'm not sure though when the change happened.

  10. #10
    Join Date
    Oct 2012
    Location
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    Quote Originally Posted by shack View Post
    Yeah as far as I know the early EU4 didn't need patching to stop throwing a CEL, and none of the EU3 ones needed it either.

    I'm not sure though when the change happened.
    05 & 06 can be blanked
    07 onwards need EGR patch

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