B1009 JEEP – Recirculation Switch Request Input Performance Or Incorrect Input

B1009 JEEP Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

B1009 JEEP Possible Causes

Faulty Recirculation Switch,Recirculation Switch harness is open or shorted,Recirculation Switch circuit poor electrical connection,Faulty A/C Heater Control

B1009 JEEP Description

The HVAC A/C Heater Control contains various switches and knobs that are used to change the systems operation. There are currently three types of switches used depending on the configuration of the system. Push button momentary switches which are normally open or in the Off position. Multifunction or rotary switches which have several distinct positions and potentiometers which are a rotary variable resistor that is used for a more precise control. An active Diagnostic Trouble Code (DTC) indicates that either a control switch or potentiometer is stuck in an On position or out of a calibrated range. A stored DTC indicates that control switch or potentiometer was stuck On or out of calibration but has since returned to its normal state.