Invalid Data Received From Sunroof Control Module

Where it lives

For U046A, the part to look at first is the module named here.

Check these first

• Bent or backed out pins at the Sunroof Control Module connector
• A calibration fault in the Sunroof Control Module
• A fault inside the Sunroof Control Module
• A weak power or ground feed to the Sunroof Control Module
• Water or heat damage to the Sunroof Control Module

What to do next

1. Read the stored codes on a scan tool
2. Monitor Sunroof Control Module live data for dropouts
3. Check the Sunroof Control Module connector for water, corrosion, or loose pins
4. Check the Sunroof Control Module circuit for opens and shorts
5. Replace the Sunroof Control Module if the circuit and grounds test good
6. Clear the code and retest

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