NOx Sensor Circuit Low Bank 2

Where it lives

For P2215, the circuit described runs through the sensor. The description of P2215 puts it on bank 2.

Check these first

• A short to ground on the bank 2 NOx signal wire
• A failed bank 2 NOx sensor pulling its signal low
• Water intrusion at the bank 2 NOx connector
• An open in the bank 2 NOx reference circuit

What to do next

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

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