U0557: Invalid Data Received From Front Controls Interface Module "A"
Description
NOTE:
This DTC is reporting a missing or invalid message from another module on the data bus. Do not install a new acronym>RCM as part of the repair unless directed to do so in a pinpoint test.
Action
CHECK for additional RCM and FCIM DTCs. For RCM DTCs, REFER to the RCM DTC Chart. For FCIM DTCs, Refer to the appropriate Information and Entertainment System article for the procedure.