Enlighten me on K+DCAN cables

BRG_N54 · 03-20-2023, 07:10 PM

I am new to programming interface via USB K+DCAN cable. I have two 335's an '07 and '08. My cable does not have a switch on the shell. I read that there was some change in how the communications worked between these years and that I need the cable with the switch to talk to the '07 correctly. The switch alters the pins on the OBD2 connector, if I understand. My question is: do I need the switched K+DCAN cable if working on an '07 335?

sdbmwcoding · 03-22-2023, 02:48 PM

No, you don’t need the cable with switch for your 335i

GnomeChild · 03-23-2023, 02:17 AM

Pretty sure the switch is used for e46s. Cables without a switch (so any modern/high end cable) needs a special adapter box/OBD2 cable I think to swap a few pins around. e36s/e30s can be communicated with using a circular OBDI adapter. I remember there being a specific name for that particular OBDI plug but I can for the life of me remember off the top of my head

If you are using the cable for an e9x+, you don't need to flip the switch

BRG_N54 · 03-24-2023, 04:30 PM

Thank you both for your replies, have a nice weekend!

03-20-2023, 07:10 PM	#1
BRG_N54 Second Lieutenant 297 Rep 246 Posts Drives: Green '07 & Arctic '08 335i's Join Date: Jan 2023 Location: Monterey Peninsula iTrader: (0) Garage List 2008 BMW 335i [0.00] 2007 BMW 335i [0.00]	Enlighten me on K+DCAN cables I am new to programming interface via USB K+DCAN cable. I have two 335's an '07 and '08. My cable does not have a switch on the shell. I read that there was some change in how the communications worked between these years and that I need the cable with the switch to talk to the '07 correctly. The switch alters the pins on the OBD2 connector, if I understand. My question is: do I need the switched K+DCAN cable if working on an '07 335?
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03-22-2023, 02:48 PM	#2
sdbmwcoding Captain 185 Rep 780 Posts Drives: BMW M3 Join Date: May 2019 Location: San Diego iTrader: (0)	No, you don’t need the cable with switch for your 335i
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03-23-2023, 02:17 AM	#3
GnomeChild IN54NE 324 Rep 483 Posts Drives: e90 335i LCI M-Sport Join Date: Feb 2018 Location: California iTrader: (3) Garage List 2010 BMW 335i [0.00]	Pretty sure the switch is used for e46s. Cables without a switch (so any modern/high end cable) needs a special adapter box/OBD2 cable I think to swap a few pins around. e36s/e30s can be communicated with using a circular OBDI adapter. I remember there being a specific name for that particular OBDI plug but I can for the life of me remember off the top of my head If you are using the cable for an e9x+, you don't need to flip the switch __________________
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03-24-2023, 04:30 PM	#4
BRG_N54 Second Lieutenant 297 Rep 246 Posts Drives: Green '07 & Arctic '08 335i's Join Date: Jan 2023 Location: Monterey Peninsula iTrader: (0) Garage List 2008 BMW 335i [0.00] 2007 BMW 335i [0.00]	Thank you both for your replies, have a nice weekend!
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