Invalid Data Received From Remote Start Module

Where it lives

For U0555, the description names the module as the part involved.

Check these first

• A low battery or charging fault that browns out the remote start module
• A fault inside the remote start module itself
• A loose, corroded, or water damaged connector at the remote start module
• An open or short in the remote start module wiring to the module that receives its data

What to do next

1. Scan all modules and record the stored and pending network codes
2. Test the remote start module power and ground feeds under load
3. Check the remote start module data bus wiring for opens, shorts, and chafing
4. Repair or replace the remote start module if the circuit, power, and bus tests pass
5. Clear the code and retest to confirm the remote start module fault is gone

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