Lost Communication With Exhaust Gas Temperature Sensor Bank 2 Sensor 2

Where it lives

For U0622, the description names the sensor as the part involved. The description of U0622 puts it on bank 2.

Check these first

• The bus cannot see the bank 2 exhaust gas temperature sensor 2
• A burned or broken EGT sensor signal wire
• A corroded connector near the hot exhaust pipe
• A shorted sensor circuit at the bank 2 sensor 2
• A failed thermocouple inside EGT sensor 2

What to do next

1. Read exhaust gas temperature bank 2 sensor 2 on a scan tool
2. Inspect the EGT sensor wiring for heat damage
3. Check the connector for corrosion
4. Test the sensor signal and ground circuits
5. Replace the bank 2 EGT sensor 2 if communication does not return
6. Clear the code and retest

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