EGR Temperature Sensor B Circuit

Where it lives

For P041A, the circuit described runs through the sensor. The description of P041A reports a fault at the sensor.

Check these first

• A failed EGR temperature sensor B
• An open or short in the sensor B circuit
• Corrosion at the sensor B connector
• A stuck EGR valve
• Low battery voltage

What to do next

1. Read sensor B voltage on a scan tool
2. Check the sensor B circuit for an open or short
3. Inspect the sensor B connector for corrosion
4. Check the EGR valve for sticking
5. Replace sensor B if the reading is out of range
6. Clear the code and retest

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