Invalid Data Received From Door Switch D

Where it lives

For U0519, the description names the switch as the part involved.

Check these first

• Electrical noise on the data bus corrupting the door switch D signal
• A low battery or charging fault that browns out the door switch D
• A fault inside the door switch D itself
• A loose, corroded, or water damaged connector at the door switch D

What to do next

1. Scan all modules and record the stored and pending network codes
2. Inspect the door switch D connector pins for corrosion, water, and looseness
3. Test the door switch D power and ground feeds under load
4. Repair or replace the door switch D if the circuit, power, and bus tests pass
5. Clear the code and retest to confirm the door switch D fault is gone

Look up another code