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Home >> Ford >> 2021 >> Mustang Mach-E Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 171 (Steering Wheel And Column Electrical Components) >> Diagnosis And Testing >> Steering Wheel and Column Electrical Components >> Pinpoint Tests >> Pinpoint Test P : U0256:00 >> Notes
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Pinpoint Test P : U0256:00: Notes

WARNING: This page is about a different car, the 2019 Ford F-550 Super Duty, 2019 Ford F-450 Super Duty, 2019 Ford F-350 Super Duty, and 2019 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

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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