SPN 641 FMI 9

[DVT873]

(05-15-2021 )Rawze Wrote:  ...
THE Can-bus#2 is the one used for the turbo actuator and other engine hardware. It requires 2 terminating resisotrs to prevent noise and problems with communications. One of the terminating resistors is in the turbo actuator itself on an ISX ... and the other is usually located down under the truck at the DEF controller or at a NOx sensor at the other end, this especially the case for CM2250 trucks that have that second DEF controller.

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So the 3 pin plug your pointing to is the direct hookup for INSITE? The engine and aftertreatment are their own network. Engine data gets sent out to the truck CAN from the ECM. If you plug into the truck 9 pin you will see all the modules on the truck, ABS, Engine, etc. If you plug into the 3 pin you will only see the engine/aftertreatment dats. Is that correct?