LANGE ROVER DISCOVERY4 NO IGNITION ON
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  1. #1
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    Default LANGE ROVER DISCOVERY4 NO IGNITION ON

    HELLO,I heard that anything was ok with the car until it blows the turbo then after installing new turbos a technician was called to clear the faults but while clearing the faults with Launch x431 anything shut down, no ignition on when you press the start\stop button. checked all fuses they seem ok, diagnostics was not possible since there was no ignition on so i gave direct power to fuse 19 and i was able to diagnose some modules and i get no communication to the Body Control Unit in all the modules i diagnose, please help where to start from.

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    Check power to where it needs to be at the BCM and diagnostic lines are connected. If it has power and data and still no comms its going to be expensive. Explain to customer what you get when you buy shite. I would guess he is begining to figure this out already.

    Knowing LR theres probably something built in that detects a non LR scan tool and its done it on purpose.
    V Series TMS470 / EEPROM data - encryption / decryption, totally pwned.

    IEC 62056-21 - new discussion: sonsivri.to/forum/index.php?topic=60412.0


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    spanaz1 (21st February, 2018)

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    today i checked powers and communication lines, they are ok. does this mean i have to replace the BCM? owner dont care how much it will cost he just need his car back.

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    did you removed battery for more than hour ?
    car have keyless entry ? or is normal blade key ?

    LR dont check what tool you use to diagnose, launch good work with erasing error codes in LR/Jaguar

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    its Keyless entry system, if key is out of range it shows, SMARTKEY NOT FOUND ON DASH. but when i have it inside car nothing happen when i press start Stop button. Its a discovery 4 2010 diesel

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    so i think you have problem with bcm, sometimes this happends if you have flat battery
    if you try disconnecting battery for long time and not help then you must make diagnose with jlr sdd, or enable flashlights and try to connect with bcm by launch x431

 

 

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