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PLX iMFD serial connection to Hondata S300J V3

Posted: Sun May 08, 2016 7:58 pm
by shiroitenshi
Finally upgraded to the s300j v3 from s300v1 when I sold of my car and bought another.

In the help section, it's mentioned that we can connect the earphone jack IMFD cable to digital inputs on the s300 Digital inputs. There isn't much information beyond that. Is there a wiring diagram to help with connecting it?

Re: PLX iMFD serial connection to Hondata S300J V3

Posted: Mon May 09, 2016 7:47 am
by Hondata
Use the PLX or similar 3.5mm headphone plug, cut off one plug and bare the wires. You should have three wires - usually red, white & either a black or bare (uninsulated) wire. The uninsulated (bare) wire goes to ground on the S300 connector. The PLX Tx wire is red or white and goes to the I+ on the S300 connector. You can tell which wire it is by measuring with a voltmeter from ground to the wire - it should be 3.3V.

Re: PLX iMFD serial connection to Hondata S300J V3

Posted: Mon May 16, 2016 7:30 pm
by shiroitenshi
Thanks for the information. Going to do that now.