P2205
Système
Powertrain (Diesel Emissions)
Scanner requis
Full-system scanner (engine, ABS, SRS, transmission, service resets)

NOx Sensor Heater Control Circuit Low (Bank 1 Sensor 1)

Understand P2205, common causes, and the right FOXWELL scanner to diagnose it.

NOx sensor heater circuit low — sensor inactive until warmed.

Symptômes courants

  • SCR inactive on cold start
  • NOx readings invalid until warm

Causes typiques

  • Failed heater in NOx probe
  • Short to ground
  • Blown fuse for NOx heater

Quel scanner choisir ?

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

Utilisez les données en direct et le freeze frame avant de remplacer des pièces. Les codes ABS, SRS et U nécessitent souvent un scanner mult systèmes.

Conseils de diagnostic

  • Enregistrez le freeze frame lors de la première apparition du code
  • Effacez le code uniquement après avoir corrigé la cause
  • Vérifiez les codes en attente associés
  • Vérifiez que la batterie est au-dessus de 12,4 V avant de suspecter un capteur

Scanners FOXWELL recommandés

Questions fréquentes

Can I diagnose P2205 with a basic code reader?
P2205 may set in the engine module, but related diagnostics often benefit from an enhanced or full-system scanner with live data and freeze frame.
Is it safe to drive with P2205?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.