Invalid Data Received From Door Switch A

Where it lives

For U0516, the description names the switch as the part involved.

Check these first

• A lost power or ground feed to the door switch A
• Stale calibration or an outdated software load in the door switch A
• Electrical noise on the data bus corrupting the door switch A signal
• A low battery or charging fault that browns out the door switch A

What to do next

1. Scan all modules and record the stored and pending network codes
2. Inspect the door switch A connector pins for corrosion, water, and looseness
3. Check battery voltage and charging output
4. Repair or replace the door switch A if the circuit, power, and bus tests pass
5. Clear the code and retest to confirm the door switch A fault is gone

Look up another code