Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 4

Where it lives

For P2470, the sensor sits on the circuit this code reports. The description of P2470 puts it on bank 1.

Check these first

• A sensor 4 element shorted to ground
• A signal wire shorted to ground on bank 1
• A water soaked sensor 4 connector
• Low charging voltage that pulls the sensor signal down

What to do next

1. Read exhaust gas temperature sensor bank 1 sensor 4 on a scan tool
2. Test the sensor 4 signal wire for a short to ground
3. Inspect the sensor 4 connector for water intrusion
4. Check charging voltage at the battery
5. Replace the exhaust gas temperature sensor if the circuit tests good
6. Clear the code and retest

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