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J1939 Crap Priority Data for Coolant Temp and Oil Temp PGN 65262

We are datalogging values from the CAT Network via J1939/CANBus protocol.

 

For the Coolant and Oil Temperatures for some units, PGN 65262, the values take turns going from correct to "near zero" or "max".

 

I believe that the temp data is being logged in two seperate devices and one is trumping the other. The only issue is that the channel taking priority shows the incorrect value.

 

Has anyone seen this before?

 

# candump can1 | grep FEEE
  can1  1CFEEE00   [8]  81 38 42 2D FF FF FF FF
  can1  18FEEE12   [8]  FF 38 FF FF FF FF FF FF
  can1  1CFEEE00   [8]  81 38 3A 2D FF FF FF FF
  can1  18FEEE12   [8]  FF 38 FF FF FF FF FF FF
  can1  1CFEEE00   [8]  81 38 3C 2D FF FF FF FF
  can1  18FEEE12   [8]  FF 38 FF FF FF FF FF FF
  can1  1CFEEE00   [8]  81 38 41 2D FF FF FF FF
  can1  18FEEE12   [8]  FF 38 FF FF FF FF FF FF
  can1  1CFEEE00   [8]  81 38 3F 2D FF FF FF FF
  can1  18FEEE12   [8]  FF 38 FF FF FF FF FF FF
  can1  1CFEEE00   [8]  81 38 3F 2D FF FF FF FF
  can1  18FEEE12   [8]  FF 38 FF FF FF FF FF FF
 
 
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