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Thread: New Learner to the Nanocom Evolution for Defender 2.4 PUMA - Fault Codes?

  1. #1
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    Question New Learner to the Nanocom Evolution for Defender 2.4 PUMA - Fault Codes?

    Guys...

    I've recently tried testing out the Nanocom on my Defender and I have a couple of questions...

    When scanning for any fault codes, there is 2 options: (1) READ TESTED and (2) READ NOT TESTED.
    I assume that (1) is when the fault code is there permanently &/or intermittently?
    I assume that (2) is when the fault code was present but then disappeared/cleared itself and is no longer present/current??

    I performed a scan in each section and got the following:

    I'm currently having the Engine Check light coming up on my Dash and the following code on my SGII is only P0100, but the Nanocom also shows an intermittent P0403 (see below):

    (1) - FAULT 1 OF 2
    ECU: Engine Management
    CODE:P0100
    Mass or volume air flow circuit
    (PERMANENT)
    FREQUENCY MODULATION/PULSE WIDTH MODULATION FAILURE - SIGNAL FREQUENCY IS TOO LOW.

    FAULT 2 OF 2
    ECU: Engine Management
    CODE:P0403
    Exhaust gas recirculation control circuit
    (INTERMITTENT)
    GENERAL ELECTRICAL FAILURE - CIRCUIT RESISTANCE ABOVE THRESHOLD.



    These CODES below only show up on he Nanocom (not on the SGII) and I "believe" that these are "old" codes that are no longer present... Is that correct?

    (2) - READ – NOT TESTED
    FAULT 1 OF 2
    ECU: Engine Management
    CODE:P0606
    Engine control module/powertrain control module processor / Control module processor
    (NOT TESTED DTC, PERMANENT)
    SYSTEM INTERNAL FAILURE - INTERNAL ELECTRONIC FAILURE.

    FAULT 2 OF 2
    ECU: Engine Management
    CODE:P0234
    Turbo/supercharger overboost condition
    (NOT TESTED DTC, PERMANENT)
    GENERAL FAILURE INFORMATION - NO SUBTYPE INFORMATION.


    Looking for Comments/ideas? I'm assuming that my MAF might be up for replacement as I've had a look at the Silicon Hoses/clamps/ MAF connection and it all "looks" normal...

  2. #2
    discorevy is offline ChatterBox Silver Subscriber
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    go in to live values , see what reading the maf is giving at idle, also read command and actual % on the egr

  3. #3
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    That, ''tested" and ''not tested" thing is explained at page 3 https://nanocom-diagnostics.com/down...pac-user-guide so IMO you'll have to erase them and go for a drive then read codes again.
    Discovery Td5 (2000), manual, tuned

  4. #4
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    Quote Originally Posted by sierrafery View Post
    That, ''tested" and ''not tested" thing is explained at page 3 https://nanocom-diagnostics.com/down...pac-user-guide so IMO you'll have to erase them and go for a drive then read codes again.
    Thanks for that... I did end up finding out the differences and the way I understood it is that they are old fault codes that came up in the past but self-cleared and have not come up again...?

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