P2471

Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 4

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine Light Is On
Reduced engine power
Increased fuel consumption
Unstable engine idling
Possible overheating of exhaust system components

Causes

Exhaust temperature sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Wiring harness damage
Malfunction of the engine control unit (rare)

How to Fix

Check the integrity of the wiring and connectors of the sensor
Measure the resistance of the exhaust temperature sensor
Check reference voltage and sensor signal
Replace the faulty exhaust temperature sensor if necessary
Reset the error code and check for its reappearance

Related codes

P2470 P2472 P0546