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P247B
Sistema
Powertrain (Diesel Emissions)
Scanner richiesto
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Exhaust Gas Temperature Sensor Circuit Performance (Bank 1 Sensor 3)

Understand P247B, common causes, and the right TOPDON scanner to diagnose it.

Third EGT sensor (often post-DPF) performance fault.

Sintomi comuni

  • Regen monitoring fault
  • SCR efficiency codes

Cause tipiche

  • Failed post-DPF EGT
  • Sensor tip soot insulated
  • Wiring fault

Di quale scanner hai bisogno?

Full-system scanner (engine, ABS, SRS, transmission, service resets)

Usa dati live e freeze frame prima di sostituire componenti. I codici ABS, SRS e U richiedono di solito uno scanner full-system.

Consigli diagnostici

  • Registra il freeze frame quando compare il codice
  • Cancella il codice solo dopo aver risolto la causa
  • Controlla codici pending correlati
  • Verifica che la batteria sia sopra 12,4 V prima di sospettare i sensori

Scanner TOPDON consigliati

Domande frequenti

What does P247B mean?
P247B indicates exhaust gas temperature sensor circuit performance (bank 1 sensor 3). Third EGT sensor (often post-DPF) performance fault.
Can I diagnose P247B with a basic code reader?
P247B may set in the engine module, but related diagnostics often benefit from an enhanced or full-system scanner with live data and freeze frame.
Which TOPDON scanner do I need for P247B?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with P247B?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.