B109E - Panel Model Door 2 Control Circuit Open

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

B109E 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

First diagnose B109E code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.

Cost of diagnosing the B109E code

    Labor: 1.0

    The cost of diagnosing the B109E code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

B109E Possible Symptoms

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

B109E Meaning

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 B109E - Panel Model Door 2 Control Circuit Open - Engine-Codes.com

B109E More Information

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