P2473

Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Unstable engine operation at idle
Increased emissions

Causes

Exhaust temperature sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Corroded contacts or damaged wiring harness
Engine control unit malfunction

How to Fix

Check the integrity of the exhaust temperature sensor
Check the condition of the sensor circuit and connectors
Measure the sensor resistance and compare with standards
Check for corrosion or damage in the wiring harness.
If necessary, replace the exhaust temperature sensor

Related codes

P2470 P2471 P2472