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Test Rig, Need Advice

Discussion in 'General Electronics Discussion' started by N1CKY, Feb 27, 2013.

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  1. N1CKY

    N1CKY

    3
    0
    Feb 27, 2013
    Hello there, Im new here. Im looking to make a test rig to test window modules from renault meganes. The module has 6 pins,

    Pin1:Switch
    Pin2:Switch
    Pin3:positive
    Pin4:Negative
    Pin5:UNUSED
    Pin6: To Body Controll Unit. (BCU)

    Basically, The current test rig can test the up/down feature when pressing the switch. But the module has automatic functions (When the car gets locked the windows go up)

    So the BCU sends a signal to the module for each command, So different frequencies from the BCU will make it do different commands. So what i want to do is re-create the BCU commands.

    What i was thinking is measure the frequency of these commands with a O'scope then use some type of hardware (Dev Board ?) to probe pin6 and make it do the commands. Im just unsure of what hardware i need and how id go about it. This stuff really interests me so id like to get it working if possible.

    Any suggestions would be greatly appreciated.

    The voltage will be between 0-14vDC
    No idea on the frequency range as of yet

    Regards,

    Nicky
     
  2. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

    4,960
    652
    May 8, 2012
    Have you Googled the data type? This is just an educated guess but I would think it's Serial Data.

    Chris
     
  3. N1CKY

    N1CKY

    3
    0
    Feb 27, 2013
    Trying to find a datasheet for the IC is proving rather difficult though, Its a motorla chip with the numbers:

    W84 197956a0
    sw1.7 algo20
    0k20r
    ctctlw0329

    If it is serial data, How would my idea around a test change ? Thanks.

    Nicky
     
  4. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

    4,960
    652
    May 8, 2012
  5. xtoutou

    xtoutou

    1
    0
    Jun 3, 2016
    Hello N1CKY. Any luck with the project? I could use some advice here. I own a megane and the window module stop working. Is there any way I can fix it? Maybe replace a component? Or is it the chip's fault? How can I test the pcb for errors? Thank you in advance for any information.
     
  6. duke37

    duke37

    5,364
    771
    Jan 9, 2011
    This seems to be a common problem.
    My neice has just had a module repaired by "The James Clan" for £30. This includes water proofing. It works well but do not know for how long.
     
    xtoutou likes this.
  7. Herschel Peeler

    Herschel Peeler

    401
    65
    Feb 21, 2016
    Sounds like time to visit a junk yard and buy a door and BCU.
     
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