B2455: Aux Heater Blower Faulted

MediumBodyClimate Control

What does B2455 mean?

B2455 is a diagnostic trouble code indicating "Aux Heater Blower Faulted". This code relates to your vehicle's climate control and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.

Common causes

  • Faulty climate control component
  • Wiring or connector issue in the related circuit
  • Failed sensor providing incorrect readings
  • Software/calibration issue requiring ECU update
  • Related component causing secondary fault

What should you do?

Schedule a diagnostic appointment at your earliest convenience. The vehicle is generally safe to drive short distances, but the underlying issue should be addressed to prevent it from worsening.

Get a diagnosis for YOUR car

Code B2455 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.

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Related codes

B2454Aux Heater Blower Fan Circuit Open
B2456Aux Heater Coolant Sensor Circuit Short to Ground
B2453Aux Heater Blower Fan Circuit Short to Ground
B2457Aux Heater Coolant Sensor Circuit Open