AutoCodes – Generic – B226D

B226D Code - Right Blend Door Motor Stalled

Quick Answer

Under normal operation, to rotate the blend door actuator, the Electronic Manual Temperature Control (EMTC) or Electronic Automatic Temperature Control (EATC) module supplies voltage to the actuator motors through the door actuator clockwise circuits, and supplies ground through the door actuator counterclockwise circuits. Common causes include Faulty Right Blend Door Actuator, Right Blend Door Actuator harness is open or shorted, Right Blend Door Actuator circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B226D indicates Right Blend Door Motor Stalled.
Common causes: Common causes include Faulty Right Blend Door Actuator, Right Blend Door Actuator harness is open or shorted, Right Blend Door Actuator circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 653

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Oct 29, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B226D Description

Under normal operation, to rotate the blend door actuator, the Electronic Manual Temperature Control (EMTC) or Electronic Automatic Temperature Control (EATC) module supplies voltage to the actuator motors through the door actuator clockwise circuits, and supplies ground through the door actuator counterclockwise circuits. To reverse the actuator rotation, the EMTC module or EATC module reverses the voltage and ground circuits.
The actuator feedback resistors are supplied a ground from the EMTC module or EATC module by the door actuator return circuits and a 5-volt reference voltage on the door actuator reference circuits. The EMTC module or EATC module reads the voltage on the blend door actuator feedback circuits to determine the door actuator position, by the position of the actuator feedback resistor wiper arm.

OBDII Code B226D - Right Blend Door Motor Stalled - AutoCodes.com — B226D Code - Right Blend Door Motor Stalled

What does this mean?

What are the Possible Causes of the DTC B226D?

Faulty Right Blend Door Actuator
Right Blend Door Actuator harness is open or shorted
Right Blend Door Actuator circuit poor electrical connection
Faulty Electronic Manual Temperature Control (EMTC) or Electronic Automatic Temperature Control (EATC)

How to Fix the DTC B226D?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B226D code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B226D code?

Need more information on how to fix the B226D code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B226D code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B226D Ford — Right Blend Door Motor Stalled
B226D Lincoln — Right Blend Door Motor Stalled
B226D Mercury — Right Blend Door Motor Stalled

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B226D Code

1. What does OBDII code B226D mean?

B226D indicates that the right blend door motor in the vehicle's HVAC system is stalled or not functioning as expected.

2. What are the common symptoms of code B226D?

Symptoms may include uneven cabin temperature, inability to adjust air temperature on one side, or strange noises from the HVAC system.

3. What causes the right blend door motor to stall?

Common causes include a faulty blend door motor, debris obstructing the blend door, electrical wiring issues, or a damaged HVAC control module.

4. Can I drive with the B226D code present?

Yes, you can still drive the vehicle, but the HVAC system may not function properly, leading to discomfort or difficulty in maintaining a consistent cabin temperature.

5. How do I diagnose a B226D code?

Diagnosing involves inspecting the blend door motor for functionality, checking for obstructions in the blend door movement, and testing the electrical connections and control signals.

6. How is a B226D code typically fixed?

Repairs may include replacing the right blend door motor, removing obstructions, repairing damaged wiring, or reprogramming/replacing the HVAC control module.

7. Can a B226D code be caused by a blown fuse?

Yes, if the fuse related to the HVAC system or blend door motor is blown, it could prevent the motor from functioning and trigger the code.

8. How much does it cost to repair a B226D code?

Repair costs typically range from $150 to $400 depending on whether the issue is with the motor, wiring, or control module.

9. Can I fix a B226D code myself?

If you have basic mechanical and electrical skills, you might be able to replace the blend door motor or clear obstructions. However, advanced diagnostics may require professional help.

10. Will clearing the code with a scan tool fix the issue?

Clearing the code will not fix the underlying problem; the fault must be identified and corrected for the code to stay cleared.