OBD Guide

P247B

Exhaust Gas Temperature Out of Range Bank 1 Sensor 4

P247B is an OBD-II diagnostic trouble code meaning: Exhaust Gas Temperature Out of Range Bank 1 Sensor 4. Common causes: exhaust temperature sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $28–89.

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

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

Related codes

Error P247B by Vehicle Brand

FAQ

What does the P247B code mean?

P247B is an OBD-II diagnostic trouble code that indicates: Exhaust Gas Temperature Out of Range Bank 1 Sensor 4

What causes a P247B error code?

The most common causes of P247B include: Exhaust temperature sensor malfunction; Open or short circuit in the sensor circuit; Problems with the wiring harness or connectors; Mechanical damage to the sensor.

How do I fix a P247B diagnostic trouble code?

To fix P247B: Check the continuity of the exhaust temperature sensor circuit. Inspect connectors and wiring harness for damage. Check resistance and sensor signal. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P247B?

Yes, but get it checked soon

How much does it cost to fix P247B?

The estimated repair cost for P247B is $28–89. Actual cost depends on your vehicle, location, and labor rates.

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