
A Problem in the Mode Control Motor Circuit, Linkage, Door, or Motor
B1240 may indicate a problem in the climate control mode control motor circuit, linkage, door, or motor.
Article vehicle: 2010-2017 Honda Accord 2.4 Gas
Read diagnostic guideDTC code
Vehicle-specific published guides for this diagnostic trouble code.

B1240 may indicate a problem in the climate control mode control motor circuit, linkage, door, or motor.
Article vehicle: 2010-2017 Honda Accord 2.4 Gas
Read diagnostic guide
B1240 may indicate that the climate control system is having a problem with the mode control motor circuit or the parts that move the air doors.
Article vehicle: 2010-2015 Honda Civic 1.8 Gas
Read diagnostic guide
B1240 may indicate that the climate control unit is seeing an unexpected mode control motor feedback signal.
Article vehicle: 2016-2024 Honda Civic 1.5TurboGas
Read diagnostic guide
B1240 may indicate the climate control unit is seeing an unexpected mode control motor signal while trying to manage airflow direction.
Article vehicle: 2020-2025 Honda Cr V 2.0Hybrid
Read diagnostic guide
B1240 may indicate that the climate control unit is seeing a mode control motor signal that does not match the expected position behavior for airflow outlet control.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
Read diagnostic guide