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Skoda Fabia Meter Backlight Queries: Connecting VAG KKL for Scientific Purposes

driwer88 10593 11
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16468451
    driwer88
    Level 2  
    Hello, I have a problem with the backlight of the Fabi meter from the Skoda Fabi I have the meter on the table connected according to the pinout but there is no pin on the list that would be responsible for the counter starts, that is, you can see the watch and mileage after connecting to contacts 30 and 31 and after connecting the contact 15 or plus the ignition lights up and the pipes start reacting, also the MFA switching and the lights from the long and fog light add that I do not have a car under this counter I do it only for scientific purposes if someone overwhelmed would hit because maybe he could tell me how to hook up a VAG for this counter I have a VAG KKL interface in advance thanks for your help. in the attachment I will add a list of pins that I use
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  • #2 16469087
    gabik001
    Level 37  
    And how do you connect the low beam (3) what effect?
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  • #3 16469401
    driwer88
    Level 2  
    I left 12v on the pin from the passing beam and nothing on the ground, also nothing like I gave on the pin from the long 12v is the control lights but the backlight does not. I wonder if the backlight does not go anywhere after CAN because all the pins I already treated or 12v
  • #4 16469574
    grala1
    VAG group specialist
    Try the black connectors pin 4 and 6, enter the plus there.
    Communication with the meter is via the central electronics module.
    You connect to it through the OBD socket using the K line and this module connects to the meter via CAN.
  • #5 16469890
    lukaszooo
    Level 13  
    So it is not possible to connect to the meter for a short time ??? somehow it's hard for me to believe it.
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  • #6 16469935
    sk700
    Level 31  
    You have an interface with the K line, the meter has only CAN, what other arguments do you need to believe that what you have cannot be? As mentioned, communication goes through the gateway without which you will not move anything here.
  • #7 16470056
    driwer88
    Level 2  
    ok thanks buddy or connecting to a computer we can forget I understand what's going on. But why this trash does not light pins 4 and 6 do not work Google I tried to find out what are these mysterious 58 L and 58 R markings at first I thought that maybe the direction indicators, I also checked the pin from the dipped headlights but also the box I start to believe that there is something in it the meter is broken but if I give the voltage on a single diode it is lit. And is it possible that the information about the lights turned on CAN and because one of the pages found on the net one man mentions it, because if so because the lip with backlight,
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  • #8 16470104
    grala1
    VAG group specialist
    These markings are left and right parking lights.
    From what I remember, it is enough to turn off the car on the indicator and the meter will be illuminated and then on these pins there is power. This is not an output but an input or information for the meter.
  • #9 16470119
    lukaszooo
    Level 13  
    I have a hex can cable, can I connect it?
  • #10 16470501
    driwer88
    Level 2  
    So if I unhook terminal No. 15 or 12v after the ignition switch then theoretically the engine is off and if I give the voltage to these pins then it should be highlighted well understood?
  • #11 16492691
    Alfred001
    Level 14  
    lukaszooo wrote:
    I have a hex can cable, can I connect it?

    Not directly. You must have a CAN gateway.
  • #12 21328181
    nikodemwuwu
    Level 1  
    And the speed also goes on CAN or on pins 5,6

Topic summary

The discussion addresses issues with the backlight and functionality of a Skoda Fabia instrument cluster (meter) when powered externally for experimental purposes. The meter shows mileage and clock when connected to pins 30 and 31, and illumination occurs when pin 15 or ignition plus is connected. However, the backlight and indicator lights do not respond to direct 12V supply on relevant pins, suggesting that backlight control signals and other functions like MFA switching and lighting indicators are managed via CAN bus communication through the vehicle's central electronics module (gateway). Direct pin powering is ineffective because the meter relies on CAN signals for illumination and status inputs such as left/right parking lights (pins marked 58L and 58R). Attempts to use a VAG KKL interface with K-line communication fail since the meter communicates exclusively via CAN, requiring a CAN gateway for interaction. The speed signal is also queried, with suggestions it may be transmitted over CAN or specific pins (5,6). Overall, the meter cannot be fully operated or illuminated without integration into the vehicle's CAN network and gateway module.
Summary generated by the language model.
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