V4 serial tuning cable question

alexander · Post by **alexander** » Wed Oct 24, 2012 6:41 am

hi all,
remind me: is the serial tuning cable the same as a common and garden telephone RJ11 cable?
the V4 in one of my cars is not communicating with the control software, and i am using a standard phone cable for that.
the V4 in my other car does communicate with the control software, but that is via a cable i bought with the MJ unit. yes, i could swap the cables, but that involves removing the car seat in car #2.....

ta.
alexander.

Post by **brentp** » Wed Oct 24, 2012 3:57 pm

The tuning cable is a straight through cable - sometimes phone cables are wired backwards.

Could you take the new cable and test it in the known good environment? then you can narrow it down to the cable, or not.

alexander · Post by **alexander** » Thu Oct 25, 2012 2:54 am

thanks, brent. the cable is just a normal phone cable which works as such, but the reality is i will have just have to take the seat out of the other car to get the known good cable out.

cheers.
alexander.

alexander · Post by **alexander** » Thu Oct 25, 2012 7:23 am

update: having a good look with a magnifying glass it seems that, as alluded to, all the telephone cables i possess, have the wires reversed one end to the other. naturally, getting access to the correct cable and other MJ unit took about as long as it took to remember my username / pwd for this forum and write the post!

so it is, as they say, all good.
obvious solution was to simply cut the telephone cable and resolder the wires in the right pattern.

regards,
alexander.

Post by **brentp** » Thu Oct 25, 2012 3:39 pm

Awesome! thanks for the update.