Possible Odometer Roll Back?

[Booms]

 

[Rock$tar]

you're close but keep in mind this is a can-bus network not a tcp-ip one

The network makes no difference. A 16 bit register filled with 1s is equal to 65535 or 32767 if 0 is represented as the middle nunber (quite common in PLC programming)



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[Wizard]

The network type makes no difference to the processor or other logic architecture that may be driving the display.
...

isn't 65535 the total number of byte accesible memory ?...what does it have to do with displaying it on the odometer. i can see a way to show it in a crash or a boot log but not om a display.

 

[Wizard]

The network type makes no difference to the processor or other logic architecture that may be driving the display. If it is a 16 bit architecture, then 65535 would be a 16 bit register filled with 1's. Nothing to do with TCP/IP ports.

as far as I know the odometer doesn't do processing but it displays data from bcm and ecm.

 

[Rock$tar]

as far as I know the odometer doesn't do processing but it displays data from bcm and ecm.

The odometer reading is stored on the cluster not the BCM. That's why when people swap clusters the milage changes. The BCM does most things but milage and hours is done on the cluster.

The reason you see that number when new or after a flash is because the register is full of 1s.

16x 1s in register is 65535 when displayed in decimal.

There is actual a few other things stores in cluster and not the BCM like screen settings and graphics related to cluster display.

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[SitKneelBend]

The odometer reading is stored on the cluster not the BCM. That's why when people swap clusters the milage changes. The BCM does most things but milage and hours is done on the cluster.

The reason you see that number when new or after a flash is because the register is full of 1s.

16x 1s in register is 65535 when displayed in decimal.

There is actual a few other things stores in cluster and not the BCM like screen settings and graphics related to cluster display.

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This, but the mileage is also stored in other onboard computers. If I'm not mistaken the transmission has it's own record of mileage and I believe it's stored elsewhere too.

It would be nice if it were just a readout, I believe it's not due to laws that state mileage must be stored in the "odometer"...

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[NWhunt]

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