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AutoCodes - Generic - B0266

B0266 Code - Air Flow Control 6 Circuit High

- Code Popularity: 678 Views
- Repair Importance Level: 1/3
- Repair Difficulty Level: 2/3
Table of contents
By - Updated Mar 10, 2021
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|B0266 code possible causes

  • Faulty Mode Actuator
  • Mode Actuator harness is open or shorted
  • Mode Actuator circuit poor electrical connection
  • Faulty Heating, Ventilation, and Air Conditioning (HVAC) Control Module

|How do I fix code B0266 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 connector's pins.

Does your car have Safety Recalls? → Check here

|Cost of diagnosing B0266 code

Labor: 1.0

The cost of diagnosing the B0266 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|What are B0266 code possible symptoms?

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

|B0266 code description

Stepper motors are used for temperature regulation, air distribution control and recirculation door control. With the switches and dials on the HVAC controls, air temperature door position, mode door position and recirculation door position can be selected. The selected values are passed to the Heating, Ventilation, and Air Conditioning (HVAC) Control Module via serial data. The HVAC control module supplies a 12 V reference voltage to the stepper motors and energizes the 4 stepper motor coils with a pulsed ground signal. The stepper motors move the appropriate doors into the calculated positions, in order to reach the desired positions.

OBDII Code b0266 - Air Flow Control 6 Circuit High -
B0266 Code - Air Flow Control 6 Circuit High

|Need more information with the B0266 code?

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|Information for specific makes

|Need help with a B0266 code?

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|B0266 code comments

Help us improve Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the b0266 code? Have you replaced any parts?
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