P247B

Exhaust Gas Temperature Out of Range 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 comes on
Reduced engine power
Increased fuel consumption
Unstable engine operation
Problems with diesel particulate filter regeneration (for diesel engines)

Causes

Exhaust temperature sensor malfunction
Open or short circuit in the sensor circuit
Problems with the wiring harness or connectors
Mechanical damage to the sensor
Engine ECU malfunction

How to Fix

Check the continuity of the exhaust temperature sensor circuit
Inspect connectors and wiring harness for damage
Check resistance and sensor signal
Replace faulty exhaust temperature sensor
If necessary, reflash or replace the ECU

Related codes

P247A P247C P0546