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B1222 Honda Code - Short In The Rear Mode Control Motor Circuit

Quick Answer

The B1222 Honda diagnostic trouble code indicates a short in the rear mode control motor circuit. Common causes include Wiring issues or a short in the rear mode control motor circuit, Faulty rear mode control motor, Corrosion or damage to the 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
B1222 Honda indicates Short In The Rear Mode Control Motor Circuit.
Common causes
Common causes include Wiring issues or a short in the rear mode control motor circuit, Faulty rear mode control motor, Corrosion or damage to the 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 06, 2024
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Code B1222 Honda Description

The B1222 Honda diagnostic trouble code indicates a short in the rear mode control motor circuit. This means that there is an issue with the rear mode control motor, which is responsible for adjusting the airflow direction in the HVAC (Heating, Ventilation, and Air Conditioning) system. The rear mode control motor helps regulate the temperature and airflow to the rear passengers in the vehicle. A short in this circuit can lead to issues with controlling the temperature and airflow in the rear of the vehicle, affecting passenger comfort.

OBDII Code B1222 Honda - Short In The Rear Mode Control Motor Circuit
B1222 Honda Code - Short In The Rear Mode Control Motor Circuit

Common Causes of B1222 Honda

  1. Wiring issues or a short in the rear mode control motor circuit.
  2. Faulty rear mode control motor.
  3. Corrosion or damage to the electrical connectors.
  4. Issues with the HVAC control panel.

Symptoms of B1222 Honda

  1. Inconsistent temperature control in the rear of the vehicle.
  2. Airflow direction not changing as desired.
  3. HVAC system not responding to rear passenger settings.
  4. Strange noises coming from the rear mode control motor.

How to Fix B1222 Honda

  1. Begin by diagnosing the exact cause of the short in the rear mode control motor circuit using a multimeter and wiring diagram.
  2. Inspect the wiring and connectors for any damage or corrosion, repairing or replacing as necessary.
  3. Test the rear mode control motor for proper operation and replace it if faulty.
  4. Clear the diagnostic trouble codes from the vehicle's system.
  5. Test the HVAC system to ensure proper functionality.

Cost to Fix B1222 Honda

The cost of repairing a short in the rear mode control motor circuit can vary depending on the specific cause of the issue and the cost of parts and labor. On average, the repair cost for this issue can range from $150 to $400. It's important to note that the actual cost may be higher or lower based on the factors mentioned earlier, so it's recommended to get a detailed estimate from a qualified auto repair shop.

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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 B1222 Honda Code

1. What are the common symptoms of OBDII code B1222 in a Honda related to a short in the rear mode control motor circuit?

- Common symptoms include issues with the rear HVAC system, such as inconsistent air temperature or airflow control.

2. What typically causes the OBDII code B1222 in a Honda indicating a short in the rear mode control motor circuit?

- The code is usually triggered by a short circuit in the wiring of the rear mode control motor or a malfunction within the motor itself.

3. How can I diagnose the OBDII code B1222 in my Honda if I suspect a short in the rear mode control motor circuit?

- Use a multimeter to test the wiring and connections related to the rear mode control motor, checking for continuity and shorts.

4. Is it safe to continue driving my Honda with the OBDII code B1222 related to the rear mode control motor circuit short?

- It is generally not recommended to drive the vehicle with this issue as it could affect the proper functioning of the HVAC system.

5. Can I repair the OBDII code B1222 in my Honda indicating a short in the rear mode control motor circuit myself?

- Depending on your automotive repair skills, you may be able to repair the issue by replacing the rear mode control motor or repairing the wiring.

6. Are there any quick fixes or temporary solutions for the OBDII code B1222 in a Honda until I can address the root cause?

- Disconnecting the battery for a few minutes may reset the system and temporarily clear the code, but it is not a permanent solution.

7. How much does it cost to repair the OBDII code B1222 in a Honda caused by a short in the rear mode control motor circuit?

- The cost of repair can vary depending on the extent of the damage and whether you choose to do the repair yourself or take it to a professional mechanic.

8. Will resetting the OBDII code B1222 in my Honda make it go away permanently if the short in the rear mode control motor circuit is not fixed?

- Resetting the code without addressing the root cause will likely result in the code reappearing once the issue is detected again by the vehicle's system.

9. Can extreme weather conditions or environmental factors cause the OBDII code B1222 related to a rear mode control motor circuit short in a Honda?

- While rare, extreme weather conditions or water damage could potentially lead to a short in the rear mode control motor circuit, triggering the B1222 code.

10. Is the OBDII code B1222 specific to certain Honda models, or can it occur in various Honda vehicles?

- The B1222 code related to a short in the rear mode control motor circuit can occur in various Honda models equipped with an OBDII system.

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