Invalid Data Received from Fuel Pump Control Module B

Where it lives

For U046D, the description names the pump as the part involved.

Check these first

• Damaged or shorted wiring at the Fuel Pump Control Module B
• A corroded or damaged Fuel Pump Control Module B connector
• Corrupted or outdated software in the Fuel Pump Control Module B
• A fault inside the Fuel Pump Control Module B
• A broken or chafed Fuel Pump Control Module B wire

What to do next

1. Scan every module and record the stored codes
2. Check Fuel Pump Control Module B data on live data
3. Inspect the Fuel Pump Control Module B connector for corrosion or backed out pins
4. Check the power and ground feeds to the Fuel Pump Control Module B
5. Replace the Fuel Pump Control Module B if the wiring and voltage tests pass
6. Clear the code and retest

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