Well according to that pinout link you posted 156.3 KHz clock rate sounds correct based on this: Receiver Clock Input. The frequency of this input should equal the receivers baud rate * 16 That should be 9600 bps * 16 = 156300 Hz [ http://www.beyondlogic.org/serial/serial.htm ] I'm wondering if there is some external controller or if some of the ECUS have differnt UART chips that perhaps run at a lower speed like some of the other ECU OBDI Ports did from other manufacturers (for instance GM ALDL OBD1 runs at 8192 bps): [ http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=75516&view=next ] [ http://www.aldlcable.com/ ] Since the laptops serial port is configurable at multiple baud rates it can be made to work with just about any device that uses a serial cable. I just need to translate the hex datastream from my laptop's USB port out to the serial port (configured to connect to R-VIT 9600 8N1).
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