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Pinpoint Test J : U0256:00: Notes

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Normal Operation and Fault Conditions 

The HSWM communicates with the FCIM over the CAN. If the HSWM does not receive messages from the FCIM, the heated steering wheel function can be inoperative.

HSWM DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
U0256:00 Lost Communication With Front Controls Interface Module "A": No Sub Type Information Sets when the HSWM does not receive an expected message from the FCIM for more than 5 seconds.

Possible Causes 

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