Lost Communication With Entrapment Control Module B

Where it lives

For U0240, the part to look at first is the module named here.

Check these first

• Damaged wiring or connector between Entrapment Control Module B and the main computer
• A failed Entrapment Control Module B
• Corrosion or water in the module or its connectors
• A programming fault in the module
• Impact or collision damage at the module

What to do next

1. Scan the network and note which modules fail to report
2. Inspect the Entrapment Control Module B wiring and connectors
3. Check the module and connectors for water or corrosion
4. Reprogram the module and retest communication
5. Replace Entrapment Control Module B if it stays offline
6. Clear the code and retest

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