EGR Cooler Bypass Position Sensor Circuit Low Bank 1

Where it lives

For P2494, start at the sensor the description names. The description of P2494 puts it on bank 1.

Check these first

• A bank 1 bypass position sensor wire shorted to ground
• A failed bypass position sensor
• Water in the position sensor connector
• A sensor that is not seated or adjusted

What to do next

1. Read the bank 1 EGR cooler bypass position sensor on a scan tool
2. Test the position sensor wire for a short to ground
3. Inspect the position sensor connector for water intrusion
4. Check the position sensor reference voltage
5. Replace the bypass position sensor if the circuit tests good
6. Clear the code and retest

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