Invalid Data Received From Front Controls Interface Module B

Where it lives

For U055E, the part to look at first is the module named here.

Check these first

• An open or short in the front controls interface module B wiring to the module that receives its data
• A lost power or ground feed to the front controls interface module B
• Stale calibration or an outdated software load in the front controls interface module B

What to do next

1. Scan all modules and record the stored and pending network codes
2. Check the front controls interface module B data bus wiring for opens, shorts, and chafing
3. Repair or replace the front controls interface module B if the circuit, power, and bus tests pass
4. Clear the code and retest to confirm the front controls interface module B fault is gone

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