General Information
Component Location
General Description
The mode control actuator is mounted at the heater control unit. The mode control actuator consists of a motor and a feedback potentiometer. Pressing mode select switch makes the mode control actuator shift in order of vent -> B/L -> floor -> mix.
DTC Description
B2409 will set if the mode actuator has not responded to an A/C ECU actuation signal for over 40 seconds.
DTC Detecting Condition
Specification
** Voltage value of potentiometer as a function of mode door position.
Diagnostic Circuit Diagram