CAN Bus resistor

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winstonusmc
Experienced MS/Extra'er
Posts: 204
Joined: Sun Jul 31, 2011 7:45 am

CAN Bus resistor

Post by winstonusmc »

Is there a way to remove the CAN Bus terminating resistor from the MS3 board? Where my ECU sits is not at the end of the twisted pair. The fuse box on the other side of the fire wall is at the end of the bus and I dont feel like ripping the resistor out of it. I have an Arduino at the other end of the bus currently that terminates the bus, so the Megasquirt is in the middle. Doesnt seem to affect it thus far, but I dont want any trouble down the road, pun intended.
Nissan Skyline R34 RB26DETT ran MS3/MS3X w/ factory Hitachi CAS (sold)
Nissan Silvia S14 RB25DE ITB/NA ran MS3/MS3X w/ factory Mitsubishi CAS (disassembled)
Datsun 240z RB25DE ITB/NA with MS3/MS3X
racingmini_mtl
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Re: CAN Bus resistor

Post by racingmini_mtl »

The only way is to desolder the resistor.

Jean
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winstonusmc
Experienced MS/Extra'er
Posts: 204
Joined: Sun Jul 31, 2011 7:45 am

Re: CAN Bus resistor

Post by winstonusmc »

I couldn't find a schematic for the MS3 processor to figure out which resistor it is.
Nissan Skyline R34 RB26DETT ran MS3/MS3X w/ factory Hitachi CAS (sold)
Nissan Silvia S14 RB25DE ITB/NA ran MS3/MS3X w/ factory Mitsubishi CAS (disassembled)
Datsun 240z RB25DE ITB/NA with MS3/MS3X
jsmcortina
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Re: CAN Bus resistor

Post by jsmcortina »

R8, likely near to U3.

James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk

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