P0549 - Exhaust Gas Temperature Sensor Circuit High (Bank 2 Sensor 1)

The ECM detected a high-input fault in the exhaust gas temperature sensor circuit on bank 2 sensor 1.

Code first. Confirm symptoms and checks before pricing parts.

Common Next Steps

Turn the code into the next check.

Related Inspection

Code Overview

The ECM detected a high-input fault in the exhaust gas temperature sensor circuit on bank 2 sensor 1.

Common Causes

• Failed exhaust gas temperature sensor
• Short to voltage in the circuit
• Heat-damaged wiring or connector near the exhaust

Diagnostic Steps

1. Inspect the sensor connector and wiring near the exhaust
2. Compare temperature data to actual operating conditions
3. Check for harness damage or poor connector fit

Likely Repairs & Cost Guides

Confirm the repair path before pricing parts.

Related OBD Codes

Browse nearby codes when systems overlap.

Next Steps

Move from code to checks, then estimate.