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Engine-Codes – Honda – B1244 Honda

B1244 Honda Code - Open In The Rear Air Mix Control Motor Circuit

Quick Answer

The B1244 Honda diagnostic trouble code indicates an open in the rear air mix control motor circuit. Common causes include Faulty rear air mix control motor, Damaged or corroded wiring in the circuit, Loose or disconnected electrical connectors. 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
B1244 Honda indicates Open In The Rear Air Mix Control Motor Circuit.
Common causes
Common causes include Faulty rear air mix control motor, Damaged or corroded wiring in the circuit, Loose or disconnected electrical connectors.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code B1244 Honda Description

The B1244 Honda diagnostic trouble code indicates an open in the rear air mix control motor circuit. In simpler terms, this means that there is a problem with the circuit that controls the air mix in the rear of the vehicle's HVAC (Heating, Ventilation, and Air Conditioning) system. The air mix control motor is responsible for adjusting the temperature of the air that comes out of the rear vents, allowing the occupants to control the climate in the back of the vehicle.

OBDII Code B1244 Honda - Open In The Rear Air Mix Control Motor Circuit
B1244 Honda Code - Open In The Rear Air Mix Control Motor Circuit

Common Causes of B1244 Honda

  1. Faulty rear air mix control motor.
  2. Damaged or corroded wiring in the circuit.
  3. Loose or disconnected electrical connectors.
  4. Issues with the HVAC control module.
  5. Electrical system malfunctions.

Symptoms of B1244 Honda

  1. Inconsistent temperature control in the rear HVAC system.
  2. Lack of airflow or weak airflow from the rear vents.
  3. Inability to adjust the temperature settings for the rear climate control.
  4. Unusual noises coming from the rear air mix control motor.

How to Fix B1244 Honda

  1. Begin by diagnosing the specific cause of the open circuit, using a multimeter to test for continuity in the wiring and components.
  2. Replace the faulty rear air mix control motor if it is found to be the root cause of the issue.
  3. Repair or replace any damaged or corroded wiring in the circuit.
  4. Check and secure all electrical connectors to ensure a proper connection.
  5. Reset the vehicle's ECU (Engine Control Unit) to clear the error code and test the HVAC system to ensure proper functionality.

Cost to Fix B1244 Honda

The cost of repairing a B1244 Honda code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. On average, the parts for this repair may cost between $100 and $300, with labor costs ranging from $100 to $300. Overall, the total repair cost could fall between $200 and $600, but it's essential to obtain a detailed estimate from a trusted mechanic to get an accurate quote for your specific vehicle and location.

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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 B1244 Honda Code

1. What are common symptoms of OBDII code B1244 in a Honda related to an open in the rear air mix control motor circuit?

The common symptoms include inconsistent or improper temperature control in the rear HVAC system, as well as potential issues with the rear air conditioning or heating.

2. What could cause the OBDII code B1244 in a Honda indicating an open in the rear air mix control motor circuit?

This code is typically triggered by a fault in the wiring or connections leading to the rear air mix control motor, a malfunction within the motor itself, or a problem in the HVAC control module.

3. How can I diagnose the open in the rear air mix control motor circuit issue causing OBDII code B1244 in my Honda?

To diagnose this problem, you can use a multimeter to test the continuity of the wiring and connections leading to the rear air mix control motor. Additionally, checking the motor for proper operation and inspecting the HVAC control module for faults is recommended.

4. Are there any quick repair tips for resolving OBDII code B1244 related to an open in the rear air mix control motor circuit in a Honda?

One quick repair tip is to carefully inspect the wiring harness and connectors for any visible damage or corrosion, as addressing these issues can sometimes resolve the problem. Additionally, resetting the fault codes and monitoring for recurrence after potential fixes is advisable.

5. Can I continue driving my Honda with OBDII code B1244 indicating an open in the rear air mix control motor circuit?

It is generally not recommended to continue driving the vehicle with this issue, as it can result in discomfort for rear passengers due to improper temperature control. It is best to address the problem promptly to ensure the proper functioning of the HVAC system.

6. Is it possible to clear the OBDII code B1244 related to an open in the rear air mix control motor circuit without fixing the underlying issue?

While you can clear the fault code using an OBDII scanner, it is essential to address the root cause of the problem to prevent it from recurring and ensure proper functionality of the rear air mix control system.

7. How much does it typically cost to repair OBDII code B1244 in a Honda caused by an open in the rear air mix control motor circuit?

The cost of repairing this issue can vary depending on the exact cause of the fault and the labor rates of the repair shop. It is advisable to consult with a professional technician for an accurate diagnosis and cost estimate.

8. Can extreme weather conditions contribute to triggering OBDII code B1244 in a Honda due to an open in the rear air mix control motor circuit?

Extreme temperature changes or environmental factors can potentially exacerbate existing issues with the rear air mix control motor circuit, leading to the triggering of this fault code. Proper maintenance and care can help mitigate such issues.

9. Are there any preventive measures I can take to avoid encountering OBDII code B1244 related to an open in the rear air mix control motor circuit in my Honda?

Regular inspection and maintenance of the HVAC system, including checking the wiring and connections to the rear air mix control motor, can help prevent issues that may trigger this fault code. Additionally, addressing any warning signs promptly can help avoid more significant problems.

10. Can a DIY enthusiast with basic automotive knowledge fix OBDII code B1244 caused by an open in the rear air mix control motor circuit in a Honda?

While some DIY enthusiasts may be able to diagnose and address simple wiring or connection issues, dealing with internal components like the rear air mix control motor or HVAC control module may require more advanced skills and specialized tools. Consulting a professional technician is recommended for complex repairs.

Discuss the causes and fixes for B1244 Honda OBDII Code

Submit a New Comment

  • I have a 2016 Honda odyssey LX
    It only has front climate control module
    There is a code B1244 and B1245
    Open/short rear air mix motor control
    I can control everything from front. There are no controls in rear. Is this a bogus code because it is a LX trim model or is there an adapter or plug missing because there is no rear controls.
    All controls in front work a/c, heater top and bottom vent control in rear of van.
    Could there be a jumper plug someone removed because there are not rear climate controls.
    This is a basic Honda model odyssey van

    Reply to Comment

    • Even on the LX trim, the Odyssey still has a rear air mix door and a rear mode door — the difference is that you don’t have a rear control panel. The front climate control module still commands the rear actuators, so the system expects to see those motors and their position feedback.

      The B1244 and B1245 codes mean the front control unit isn’t seeing the rear actuators electrically. It’s not a bogus code. Usually it means one of these:

      1. The rear air mix or mode actuator is unplugged.
      2. A connector or jumper in the rear HVAC harness is missing (common after interior work).
      3. One of the actuators has failed internally and is “open circuit.”

      The rear HVAC unit is behind the right rear interior panel. Check that both actuators are actually plugged in and that the harness hasn’t been disconnected or damaged. The LX still uses the same rear HVAC box as the higher trims; you just don’t have the rear buttons.

      If all the rear vents work but the codes stay stored, one of the actuators is likely bad and not sending position feedback. Replacing the faulty actuator usually clears the codes.

      Reply to Comment