OBD Codes List

Diagnostic reference · P2487

P2487

Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 5

System
Auxiliary emission controls (P code)
Lamp
Check Engine Light
Category
Powertrain - Auxiliary Emissions Controls

What it means

P2487 means Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 5.

Where it lives

For P2487, the sensor sits on the circuit this code reports. The description of P2487 puts it on bank 2.

Check these first

  • A sensor 5 signal wire shorted to voltage on bank 2
  • A failed exhaust gas temperature sensor reading hot
  • A bank 2 exhaust restriction
  • High resistance in the sensor 5 ground

What to do next

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

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.