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T4 Diagnostic system, Has any body got one.

Discussion in 'Range Rover' started by Detroit69, Oct 11, 2019.

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  1. Detroit69

    Detroit69 New Member

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    Hi to all, I have a 53 reg Range Rover L322 Vogue, 3.0 TD automatic, I brought it in may, with many faults, I have fixed all of the faults, apart from one. My "mlf" check enging light, never comes on, The only time it will come on, is if you have the key in position 2, and press the dash check button for over 5 seconds. I have tried a replacement instrument cluster, no luck, checked all fuses and wires, no faults found. Then a nice person told me, that with the Landrover T4 Diagnostic system, you can, deactivate & reactivate the check engine light. And I need my light reactivated for it's MoT in 2 weeks.
    Could any one please help??
    Thanks
    Jason. I am in Northampton. UK.
     
  2. Datatek

    Datatek Well-Known Member

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    You can demonstrate the the check engine light works for the MOT which should be good enough. That's if the tester even notices.
    There are other diagnostics that will do the job, it doesn't have to be T4.
     
  3. Detroit69

    Detroit69 New Member

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    Hi, I have tried Snap on, Autel and carsoft, no luck on any of them, and 4 MoT stations, all done a instant fail, due to the light not coming on, when the key is turned, But 3 out of the 4 never charged me, due to me fighting cancer and being in a wheelchair, and the same 3 put their diagnostic machines on my car for free
     
  4. RangeRoller dt

    RangeRoller dt Well-Sprung Member

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    Thought Mil was orange light?

    Orange - warning
    Red = major - fail ?
     
  5. Detroit69

    Detroit69 New Member

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    It sure is Orange. But Autopoint in Northampton, showed, me how they put all of the mot test results in, and it comes up fail. The rest of my car is perfect, that's what all 4 testing stations told me.
     
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  6. Datatek

    Datatek Well-Known Member

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    Faultmate or Nanocom if they cover your car, maybe RSW diagnostics. Have you checked the hidden menu's on the dash screen? Maybe possible to turn it on from there.
     
  7. Detroit69

    Detroit69 New Member

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    I will try anything. I do not know how to get to the "Hidden Menu" on the dash.
     
  8. Datatek

    Datatek Well-Known Member

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    Try looking in the technical archive, or tag Saint V8, he knows. I don't have an L322 thankfully so I cannot give you the details.
     
  9. Detroit69

    Detroit69 New Member

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    Thank you. I will try to contact him.
     
  10. RangeRoller dt

    RangeRoller dt Well-Sprung Member

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  11. tomcat59alan

    tomcat59alan Well-Known Member

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    @Saint.V8 tagged for you.;)
     
  12. Saint.V8

    Saint.V8 Dyed-in-the-wool 100% RR Junkie Full Member

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    In the hidden menu there is an option to test all the lights and dials on the instrument binnacle....

    Calling this up and running Test No.2 will activate the test function as per video below. it shows what lights should be on during ignition on and also the built in test - this is for the V8, but the Diesel should be similar.....



    This way you can see if the lamp for the MIL is actually functioning - if it is but it doesn't come on with usual ignition process then investigation is required to see if the lamp is fecked, or some unscrupulous person has put a blank over the top to prevent it from being seen (masking a fault!) I have had this done to me before!

    Here is the hidden menu process:

    Ignition key must be “off”.

    • Press and hold the Check Control button in the instrument cluster (RIGHT button), and turn the ignition key to the first position (KLR).


    • You will first see "Check Control OK", some seconds later you will see "Test Nr.01"
    • Push the left button on the instrument cluster to see the car's identification number. Add the 5 digits (not 6) together and write down that number, you will need it for unlocking all the functions. Example: A123457 will lead to 2+3+4+5+7 = 21
    • Push the right button until you see "Test Nr.19"
    • Push left button until you see the number that is equal to the one you calculated above
    • Push right button again
    1. Display Car's identification number, HW/SW version, construction date
    2. instrument cluster self test. Will light up all lights and run all guages
    3. Current consumption (liters/hour)
    4. Average consumption (liters/100 km)
    5. Current range
    6. Remaining fuel in tank. Three sets of numbers: A/B/C. C=total amount.
    7. Engine RPM / Coolant Temp (C)
    8. Current Speed (kph)
    9. System voltage at Term. "R" (Battery Voltage)
    10. Country/Language (UK, US, Spa, Ger, Jap, etc.)
    11. Units am/pm
    12. Average Speed
    13. ETA
    14. Date of Software Mask
    15. Production Diagnosis
    16. ""
    17. Display Vehicle Specific Data
    18. Alarm Changeover (cont. vs. intermittent OBC chime)
    19. Lock/Unlock
    20. Correction factor for fuel consumption (nicht ändern!)
    21. Reset all defect codes

    (reposted from fullfatrr.com)
     
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  13. madbrit

    madbrit Active Member

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    I have done the self bulb test and they are all working ok

    So what can the problem be with no directional indicator, no high or low beam indictor on dash

    MaDbrIT
     
  14. Datatek

    Datatek Well-Known Member

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    Damp in the LCM
     
  15. madbrit

    madbrit Active Member

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    I have this out now, looks ok, can I dry it, Or get another one
     
  16. Datatek

    Datatek Well-Known Member

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    You could try leaving it in a warm airing cupboard for a week.
     
  17. backinblack

    backinblack Well-Known Member Full Member

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    If you've read my reply in your other thread you'll have seen that I have replaced mine twice. As well as the lights it also hold a backup of your mileage and if it's higher than your current one the instrument cluster will take the higher mileage unless you change the LCM mileage fairly quickly.
     
  18. madbrit

    madbrit Active Member

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    if i get another one how do i set it to my car ? seems stupid a light module has to know the mileage of the car, no point
     
  19. backinblack

    backinblack Well-Known Member Full Member

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    It holds a backup of the mileage so if the instrument cluster is changed it can change it to the correct mileage. Makes it more difficult to clock the mileage as it will go to which ever is highest.
    I used BMW scanner 1.4 but it was a bit of a pain in the arse. You could go to a main dealer and price up a new one.
     
  20. madbrit

    madbrit Active Member

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    would of thought it better to put it in the main engine ecu like the p38, i have access to a scanner thanks for your advise
     
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