Engine-Codes - Generic - B11C3

B11C3 Code - Front Mode Door 1 Travel Range Too Small

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

|B11C3 code possible causes

  • Mode Door Binding
  • Faulty Mode Door Actuator
  • Mode Door Actuator harness is open or shorted
  • Mode Door Actuator circuit poor electrical connection
  • Faulty A/C Heater Module

|How is the B11C3 code repair?

Start by checking 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 connector's pins.

|What is the cost to diagnose the B11C3 code

Labor: 1.0

The cost to diagnose the B11C3 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are B11C3 code possible symptoms?

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

|What is B11C3 code meaning?

After the initial installation of the A/C Heater Module, 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 Module 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 Diagnostic Trouble Codes (DTCs) 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. For further information.

|Need more information with the B11C3 code?

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|B11C3 code information for specific makes

|Need help with a B11C3 code?

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