Lost Communication With Special Purpose Vehicle Control Module B

Where it lives

For U025A, start at the module the description names.

Check these first

• Damaged wiring or connectors between module B and the main computer
• Water or corrosion at module B or its connections
• A failed special purpose vehicle control module B
• The module or related parts fitted incorrectly
• Outdated software in module B or the main computer

What to do next

1. Scan and confirm special purpose vehicle control module B is offline
2. Inspect module B wiring and connectors
3. Check module B for water or corrosion
4. Update the software in module B and the main computer
5. Replace special purpose vehicle control module B if it stays offline
6. Clear the code and retest

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