B109F JEEP - Panel Model Door 2 Travel Range Too Small

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Binding Panel Model Door 2 Actuator
  • Faulty Panel Model Door 2 Actuator
  • Panel Model Door 2 Actuator harness is open or shorted
  • Panel Model Door 2 Actuator circuit poor electrical connection
  • Faulty A/C Heater Control

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

B109f Jeep Description

After the initial installation of the A/C Heater Control, the controller is calibrated to each individual blend/mode door actuator. These calibrations are stored as in the number of pulses it takes to move the door from one stop to another. The A/C Heater Control drives the Door Actuators by the use of Door Driver circuit and a Common Door Driver circuit and monitors all door actuator pulses to detect door movement in both directions. Most of the door actuators share a common door driver circuit but each door actuator has its own unique driver circuit. Due to shared circuitry, similar DTC's can set at the same time for multiple actuators depending upon the type of circuit malfunction, its location, and the direction the actuator is moving when the malfunction is present.
OBDII Code B109f Jeep - Panel Model Door 2 Travel Range Too Small - AutoCodes.com

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