AutoCodes – Generic – B1237

B1237 Code - Short In The Passenger Side Air Mix Control Motor Circuit

Quick Answer

The Climate Control Unit monitors the Passenger Side Air Mix Control Motor. Common causes include Faulty Passenger Side Air Mix Control Motor, Passenger Side Air Mix Control Motor harness is open or shorted, Passenger Side Air Mix Control Motor circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B1237 indicates Short In The Passenger Side Air Mix Control Motor Circuit.
Common causes: Common causes include Faulty Passenger Side Air Mix Control Motor, Passenger Side Air Mix Control Motor harness is open or shorted, Passenger Side Air Mix Control Motor circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 15,862

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 19, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1237 Description

The Climate Control Unit monitors the Passenger Side Air Mix Control Motor. The Climate Control Unit sets the OBDII code when the Passenger Side Air Mix Control Motor is not to factory specifications.

OBDII Code B1237 - Short In The Passenger Side Air Mix Control Motor Circuit - AutoCodes.com — B1237 Code - Short In The Passenger Side Air Mix Control Motor Circuit

What does this mean?

What are the Possible Causes of the DTC B1237?

Faulty Passenger Side Air Mix Control Motor
Passenger Side Air Mix Control Motor harness is open or shorted
Passenger Side Air Mix Control Motor circuit poor electrical connection
Faulty Climate Control Unit

How to Fix the DTC B1237?

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 B1237 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 B1237 code?

Need more information on how to fix the B1237 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1237 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1237 Acura — Short In The Passenger Side Air Mix Control Motor Circuit
B1237 Honda — Short In The Passenger Side Air Mix Control Motor Circuit

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 B1237 Code

1. What are the common symptoms of OBDII code B1237?

The common symptoms of OBDII code B1237 include issues with the passenger side air mix control motor, such as inconsistent temperature control on the passenger side of the vehicle.

2. What causes the OBDII code B1237 to be triggered?

The OBDII code B1237 is triggered when there is a short in the passenger side air mix control motor circuit. This can be caused by damaged wiring, a faulty motor, or a malfunctioning control module.

3. How can I diagnose the OBDII code B1237?

Diagnosing the OBDII code B1237 involves using a scan tool to retrieve the code, checking the wiring and connectors for any damage, and testing the air mix control motor for proper function.

4. Can I continue driving with the OBDII code B1237 present?

It is not recommended to continue driving with the OBDII code B1237 present, as it can lead to issues with temperature control in the vehicle's HVAC system.

5. How can I repair OBDII code B1237?

To repair OBDII code B1237, you will need to locate and repair the short in the passenger side air mix control motor circuit. This may involve repairing damaged wiring, replacing the air mix control motor, or addressing issues with the control module.

6. Can I fix OBDII code B1237 myself?

Depending on your level of automotive knowledge and experience, you may be able to fix OBDII code B1237 yourself. However, it is recommended to consult a professional mechanic for an accurate diagnosis and repair.

7. Will resetting the OBDII code B1237 make it go away permanently?

Resetting the OBDII code B1237 may temporarily clear the code, but if the underlying issue causing the code is not resolved, it is likely to reappear.

8. Is OBDII code B1237 a serious problem?

While OBDII code B1237 is not a critical issue that affects the overall drivability of the vehicle, it can impact the comfort and functionality of the HVAC system, especially for passengers.

9. How much does it typically cost to repair OBDII code B1237?

The cost to repair OBDII code B1237 can vary depending on the cause of the issue, the extent of the repairs needed, and the labor rates of the repair shop. It is recommended to obtain estimates from different mechanics.

10. Can OBDII code B1237 affect other systems in the vehicle?

OBDII code B1237 specifically relates to the passenger side air mix control motor circuit and is unlikely to directly affect other systems in the vehicle. However, addressing the issue promptly is recommended to prevent any potential issues with the HVAC system.