AutoCodes – Mercury – B10B9 Mercury

B10B9 Mercury Code - Blower Control No Sub Type Information

Quick Answer

The Heating, Ventilating and Air Conditioning (HVAC) Module monitors the Blower Motor Control. Common causes include Faulty Blower Motor, Blower Motor harness is open or shorted, Blower 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: B10B9 Mercury indicates Blower Control No Sub Type Information.
Common causes: Common causes include Faulty Blower Motor, Blower Motor harness is open or shorted, Blower 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 845

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 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 B10B9 Mercury Description

The Heating, Ventilating and Air Conditioning (HVAC) Module monitors the Blower Motor Control. The HVAC Module sets the OBDII code when the Blower Motor Control is not to factory specifications.

OBDII Code B10B9 Mercury - Blower Control No Sub Type Information - AutoCodes.com — B10B9 Mercury Code - Blower Control No Sub Type Information

What does this mean?

What are the Possible Causes of the DTC B10B9 Mercury?

Faulty Blower Motor
Blower Motor harness is open or shorted
Blower Motor circuit poor electrical connection
Faulty Heating, Ventilating and Air Conditioning (HVAC) Module

How to Fix the DTC B10B9 Mercury?

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 B10B9 Mercury 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 B10B9 Mercury code?

Need more information on how to fix the B10B9 Mercury code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B10B9 Mercury code diagnosed by a professional: Find a repair shop in your area

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 B10B9 Mercury Code

1. What are the common symptoms of OBDII code B10B9 in a Mercury related to Blower Control No Sub Type Information?

- The common symptoms include the HVAC blower not working, inconsistent airflow from the vents, or the blower only functioning on certain speed settings.

2. What could be causing the OBDII code B10B9 in a Mercury related to Blower Control No Sub Type Information?

- Possible causes of this code include a faulty blower motor, a damaged blower motor resistor, a malfunctioning HVAC control module, or wiring issues.

3. How can I diagnose the OBDII code B10B9 in a Mercury related to Blower Control No Sub Type Information?

- Diagnosis typically involves checking the blower motor and resistor for proper function, inspecting wiring connections, and using a scan tool to communicate with the HVAC control module for error codes.

4. What are some repair tips for resolving OBDII code B10B9 in a Mercury related to Blower Control No Sub Type Information?

- Repair tips may include replacing the blower motor or resistor if faulty, repairing any damaged wiring, resetting the HVAC control module, or reprogramming the module if necessary.

5. Can OBDII code B10B9 in a Mercury related to Blower Control No Sub Type Information be safely driven with?

- It is generally not recommended to drive the vehicle with this code present, as it can affect the HVAC system's performance and comfort inside the vehicle.

6. Is it possible to reset OBDII code B10B9 in a Mercury related to Blower Control No Sub Type Information without repairs?

- While clearing the code with a scan tool may temporarily turn off the warning light, it is crucial to address the underlying issue causing the code for a permanent solution.

7. How much does it typically cost to repair OBDII code B10B9 in a Mercury related to Blower Control No Sub Type Information?

- The cost of repairs can vary depending on the specific cause of the code, but it may involve parts and labor expenses ranging from $100 to $500 or more.

8. Are there any preventive measures to avoid OBDII code B10B9 in a Mercury related to Blower Control No Sub Type Information?

- Regular maintenance of the HVAC system, such as checking and replacing air filters, can help prevent issues that may trigger this code.

9. Can a DIY enthusiast fix OBDII code B10B9 in a Mercury related to Blower Control No Sub Type Information?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair simple causes of this code, such as replacing a blower motor resistor.

10. How long does it take to repair OBDII code B10B9 in a Mercury related to Blower Control No Sub Type Information?

- The repair time can vary based on the specific issue, but it may take anywhere from 30 minutes to a few hours to diagnose and fix the problem causing this code.