OBD2 connector pin 16 to 12v Positive cable With this in mind, connect three cables as follows Now you can use navcoder or other i-bus software You could search in wds for your car wires you will need 12v, gnd, and i-bus wich is usually a white and yellow cable OBD2 connector pin 4 or 5 to negative (gnd) cableĪnyway just plug it into your obd2 and start navcoder or connect it to your cd changer or radio, whatever. I have conected interface to 220v/12v ac/dc power adapter (+12v to pin 16 and gnd to pin4+5) but i get the same results I have modded my vag com kkl interface with ft232BL (not RL) as you said and installed inpa (loader 4.4.7, bmw group rectification programs uk v3.01) but when i connect interface to computer and start inpa (_.ipo) i only get battery on = black dot (ignition is off = white dot) #USING NAVCODER WITH USB TO SERIAL SOFTWARE# In your picture both dots are black without connecting interface to car ?Įdit: sure, because your interface got no transistor, so it doesnt depends on pin1 to make ignition dot blackįor car key memory we must do next circuit but it says pin 1 is ignition (instead of +12v by pin16) so i understand that in bmw cars pin 1 gets powered when turning the key to ignition positionĮdit: according to, pin 1 is +12v (power) so i asume it only got power when key is turned to ignition position, BMW OBD-II diagnostic interface pinout and wiring () Will ignition dot turn black when connecting interface to car so that pin1 is also powered? or what is the problem?Įdit: exactly! it works! i have powered pin 1 of interface and i get both black dots!
I suppose that in car key memory process, inpa must detect in certain moment that key is turned to off position but with interface still plugged to car, showing battery black dot and ignition white dot.
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