Cars and bikes interfaces  > Honda pinouts
Serial connector for Honda car ECU
Honda`s ECU Pin Pin
Name
Description
1 GND  
2 RX send Data from the PC to the ECU
3 +5V  
4 TX send Data from ECU to the PC
5 NC Not connected

This port is half-duplex (RX and TX are connected) in stock form. Baudrate is unknown. In modified rom`s it`s use 10 bits 38400 baudrate.


unknown connector
According to 4 reports in our database (4 positive and 0 negative) this pinout should be correct.

Is this pinout
Honda cn2\cn3 datalogging connector for obd0\obd1 ecu visual pinout:
Honda cn2\cn3 datalogging connector for obd0\obd1 ecu diagram
click to enlarge
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