Obwód zewnętrznego oświetlenia — usterka
B1250
ŚredniMalfunction of the Interior Air Temperature Sensor Circuit. The code indicates a problem with the sensor or its electrical circuit in the vehicle's climate control/heating system.
OBD-II (EN): Intake Air Temperature Sensor Circuit Fault
Code B1250 informs about a fault in the interior air temperature sensor circuit, responsible for regulating the cabin climate control and heating. The cause may be a damaged sensor, wiring problem, or HVAC control module. We recommend diagnosis at a workshop to precisely determine the cause and avoid further driving comfort issues.
Symptoms
Incorrect climate control or heating operation (e.g., lack of automatic temperature regulation), incorrect cabin temperature display, continuous or intermittent fan operation, possible illumination of the climate control system warning light or MIL.
Possible causes
• Damaged or shorted interior (cabin) air temperature sensor • Open or short circuit in the wiring harness leading to the sensor • Corrosion or loose sensor electrical connector • Damage to the climate control module (HVAC Control Module) • Sensor contamination (dust, dirt, insects blocking airflow over the measuring element)
Affected systems
Related codes
Suggested Hybspec services
Based on the systems affected by this code, we will most likely start with:
Does code B1250 require professional diagnostics?
The code alone is not enough. To find the cause, you need to read live data, check freeze frame conditions, and compare with vehicle behavior. Book a diagnostic session.
