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Thread: Help Please- Code Deciphering

  1. #11
    Join Date
    Mar 2007
    Location
    Warwick Qld
    Posts
    1,482
    Quote Originally Posted by ThorneGator View Post
    Thanks again to all,

    In short, yes. It is a generic diagnostic tool (Foxwell NT510). It had good reviews for the Defender, but I realize its shortcomings. I purchased it after my mechanic showed me the codes on their scanner, so I know they are there. I have cleared them numerous times, but they always remain. They show up with the engine running at idle (option b).

    I was at the mechanic for other bits and items, when the codes showed up, and with their busy schedule, they just recommended I have a go at it before booking in. It is strange that the vehicle is running so well, but with so many codes; making me think it is more about computer glitches than anything. But if I understood the codes a little better, then maybe I might find the common issue causing so many "over temp" and "open load" faults.

    Cheers,
    Taylor
    I may be barking up the wrong tree (it's happened before!) but it looks a lot like some of the messages I was getting with earlier generation OBD11 scanners on various vehicles (all British/Euro).
    The messages are usually a result of the reader getting a response it is not expecting from the vehicle, given the OBD protocol it is using may not be supported by the vehicles' ECU.
    The OBD11 compliance requirement was initiated in the USA from around 1980-1981. It has had many variants, but was initially setup to allow testing of emission control (mandated from about 1991) of all cars produced or sold in the USA.
    Since V8 Discos/RRs were the only ones sold in the USA, they were the only ones that had to meet that requirement.
    Then, just to be difficult, around 2003 the European On Board Diagnostic standard had to be applied to all diesel cars sold in Europe.
    Then, in 2008, the USA mandated the ISO 15765-4 CAN Bus as a requirement for all cars sold there.
    Since the biggest market, by far, for auto-related items is the USA, most readers (unless specified otherwise) are set up to align with the US standards. Many I have tried over the years simply state they cannot establish contact with the ECU, others come up with outlandish values (210 psi of boost on a naturally aspirated motor comes to mind!).
    As soon as I saw things like "Tacho Drive Over Temp Fault Active" I weondered where the hell that reading came from. As far as I can recall, I have never in my life seen a tacho drive that has a temp sensor attached to it!
    It would be interesting to find someone nearby with a Nanocom, or IID Tool (both well known to work with LR vehicles) and see what sort of messages they come up with.
    -----
    You have the right to remain silent. Anything you say will be misquoted, then used against you.
    -----

    1999 Disco TD5 ("Bluey")
    1996 Disco 300 TDi ("Slo-Mo")
    1995 P38A 4.6 HSE ("The Limo")
    1966 No 5 Trailer (ARN 173 075) soon to be camper
    -----

  2. #12
    Join Date
    Mar 2008
    Location
    --
    Posts
    16,995
    Hello.

    What ECU version is your vehicle running?
    And what Map codes does it show please.

    You may need a more specialist diagnostic tool to retrieve these but someone should be near you that could help.
    Ex 95 V8i (Azzkikr)
    Ex 01 110 Tombraider (Lara)
    Ex 00 D2 Td5 (Seal)
    D4 2.7 TDV6 (Stormy) in Fuji White / Black Accents, E-Diff, 7 Leather Seats, Rear A/C, Bi-Xenons with LED Signature Tweaked to go



    Cheers Tombie

  3. #13
    Join Date
    Mar 2011
    Location
    SYD> Brisbane
    Posts
    129
    Quote Originally Posted by donh54 View Post
    I may be barking up the wrong tree (it's happened before!) but it looks a lot like some of the messages I was getting with earlier generation OBD11 scanners on various vehicles (all British/Euro).
    The messages are usually a result of the reader getting a response it is not expecting from the vehicle, given the OBD protocol it is using may not be supported by the vehicles' ECU.
    The OBD11 compliance requirement was initiated in the USA from around 1980-1981. It has had many variants, but was initially setup to allow testing of emission control (mandated from about 1991) of all cars produced or sold in the USA.
    Since V8 Discos/RRs were the only ones sold in the USA, they were the only ones that had to meet that requirement.
    Then, just to be difficult, around 2003 the European On Board Diagnostic standard had to be applied to all diesel cars sold in Europe.
    Then, in 2008, the USA mandated the ISO 15765-4 CAN Bus as a requirement for all cars sold there.
    Since the biggest market, by far, for auto-related items is the USA, most readers (unless specified otherwise) are set up to align with the US standards. Many I have tried over the years simply state they cannot establish contact with the ECU, others come up with outlandish values (210 psi of boost on a naturally aspirated motor comes to mind!).
    As soon as I saw things like "Tacho Drive Over Temp Fault Active" I weondered where the hell that reading came from. As far as I can recall, I have never in my life seen a tacho drive that has a temp sensor attached to it!
    It would be interesting to find someone nearby with a Nanocom, or IID Tool (both well known to work with LR vehicles) and see what sort of messages they come up with.
    Thanks again, Donh54, this very well may be the correct tree....I will confirm shortly. These codes showed up when I stopped by my LR specialist mechanic on their scanner. The list I put up is the similar list to what they found, but this list is from my generic version. I am going back to my mechanic on the 11th, so I will know more then.
    I am inclined to think this is the correct explanation of what is going on, at least for some of the codes. However, if any of you do have an idea of what to check for to validate this, I'm all ears!

    Cheers,

  4. #14
    Join Date
    Mar 2011
    Location
    SYD> Brisbane
    Posts
    129
    This is the same list of codes as originally posted, but I thought it would save going back to the original post to look at them....

    Details: 2005 TD5 110 with mapped stage-one ECU done in 2011

    Test Path : Land rover, Manual selection, Defender, Up to 2007, Engine, Diesel TD5, Diesel TD5, Read codes,
    Erase codes, Read codes, Read codes, Read codes
    Read Code
    Aircon Fan Drive Over Temp Fault Logged
    Fuel Pump Drive Over Temp Fault Logged
    Tacho Drive Over Temp Fault Logged
    GearBox/ABS Output Drive Over Temp Fault Logged
    Aircon Clutch Drive Over Temp Fault Logged
    MIL Lamp Drive Over Temp Fault Logged
    GlowPlug Lamp Drive Over Temp Fault Logged
    GlowPlug Relay Drive Over Temp Fault Logged
    Aircon Fan Drive Open Load Fault Logged
    Fuel Pump Drive Open Load Fault Logged
    Tacho Drive Over Open Load Logged
    GearBox/ABS Output Drive Open Load Fault Logged
    Aircon Clutch Drive Open Load Fault Logged
    MIL Lamp Drive Open Load Fault Logged
    GlowPlug Lamp Drive Open Load Fault Logged
    GlowPlug Relay Drive Open Load Fault Logged
    Aircon Fan Drive Over Temp Fault Active
    Fuel Pump Drive Over Temp Fault Active
    Tacho Drive Over Temp Fault Active
    GearBox/ABS Output Drive Over Temp Fault Active
    Aircon Clutch Drive Over Temp Fault Active
    MIL Lamp Drive Over Temp Fault Active
    GlowPlug Lamp Drive Over Temp Fault Active
    GlowPlug Relay Drive Over Temp Fault Active
    Aircon Fan Drive Open Load Fault Active
    Fuel Pump Drive Open Load Fault Active
    Tacho Drive Over Open Load Active
    GearBox/ABS Output Drive Open Load Fault Active
    Aircon Clutch Drive Open Load Fault Active
    MIL Lamp Drive Open Load Fault Active
    GlowPlug Lamp Drive Open Load Fault Active
    GlowPlug Relay Drive Open Load Fault Active
    160,CAN Error Fault Active
    Vehicle Speed outside bounds for cruise(Where Fitted) Active

  5. #15
    Join Date
    Jul 2014
    Location
    west of Transylvania
    Posts
    2,529
    As a coincidence today a friend came to me to read the codes from his 2003 defender, most of those codes were present on his as well, after some thinking i've had the ideea to see if the ECU is the original one or a replacement, checked the part number and guess what... it is NNN000130 which was orihginally fitted to D2 automatic so somebody replaced the ECU with an unproper one

    So check the part number of your ECU just to rule it out
    Discovery Td5 (2000), manual, tuned

    ALL MY ADVICES ARE BASED ON MY OWN EXPERIENCE AND MY WAY OF UNDERSTANDING THE DESCRIPTION AND OPERATION OF SYSTEMS NOT OFFICIAL METHODS... I'M NOT A LAND ROVER TRAINED SPECIALIST JUST AN ADDICTED ENTHUSIAST.

  6. #16
    Join Date
    Mar 2011
    Location
    SYD> Brisbane
    Posts
    129
    Quote Originally Posted by sierrafery View Post
    As a coincidence today a friend came to me to read the codes from his 2003 defender, most of those codes were present on his as well, after some thinking i've had the ideea to see if the ECU is the original one or a replacement, checked the part number and guess what... it is NNN000130 which was orihginally fitted to D2 automatic so somebody replaced the ECU with an unproper one

    So check the part number of your ECU just to rule it out
    Thank you, I will do shortly!

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