Invalid Data Received From Door Switch C

Where it lives

For U0518, the part to look at first is the switch named here.

Check these first

• An open or short in the door switch C wiring to the module that receives its data
• A lost power or ground feed to the door switch C
• Stale calibration or an outdated software load in the door switch C

What to do next

1. Scan all modules and record the stored and pending network codes
2. Confirm the door switch C reports correct live data on the scan tool
3. Repair or replace the door switch C if the circuit, power, and bus tests pass
4. Clear the code and retest to confirm the door switch C fault is gone

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