AutoCodes – Mercury – B19A2 Mercury

B19A2 Mercury Code - Passenger Seat Back Blower Speed Short To Battery

Quick Answer

The Front Seat Climate Control Module (SCME) supplies voltage and ground to the passenger seat backrest blower motor. Common causes include Faulty Backrest Blower Motor, Backrest Blower Motor harness is open or shorted, Backrest Blower Motor 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: B19A2 Mercury indicates Passenger Seat Back Blower Speed Short To Battery.
Common causes: Common causes include Faulty Backrest Blower Motor, Backrest Blower Motor harness is open or shorted, Backrest Blower Motor 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 505

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 Aug 02, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B19A2 Mercury Description

The Front Seat Climate Control Module (SCME) supplies voltage and ground to the passenger seat backrest blower motor. The Front Seat Climate Control Module (SCME) also sends a speed control voltage signal to the blower motor to control blower speed. If the passenger seat backrest blower speed circuit is shorted to voltage, the Front Seat Climate Control Module (SCME) shuts down the passenger seat system and sets this Diagnostic Trouble Code (DTC).

OBDII Code B19A2 Mercury - Passenger Seat Back Blower Speed Short To Battery - AutoCodes.com — B19A2 Mercury Code - Passenger Seat Back Blower Speed Short To Battery

What does this mean?

What are the Possible Causes of the DTC B19A2 Mercury?

Faulty Backrest Blower Motor
Backrest Blower Motor harness is open or shorted
Backrest Blower Motor circuit poor electrical connection
Faulty Front Seat Climate Control Module (SCME)

How to Fix the DTC B19A2 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 B19A2 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 B19A2 Mercury code?

Need more information on how to fix the B19A2 Mercury code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B19A2 Mercury code diagnosed by a professional: Find a repair shop in your area

Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.

Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

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 B19A2 Mercury Code

1. What are the common symptoms of OBDII code B19A2 in a Mercury related to the passenger seat back blower speed short to battery?

- The common symptoms include a non-functioning passenger seat back blower, erratic blower speed control, and potential electrical malfunctions in the blower system.

2. What are the possible causes of OBDII code B19A2 Mercury indicating a passenger seat back blower speed short to battery?

- The possible causes can be a short circuit in the wiring, a malfunctioning blower speed control module, or a faulty blower motor.

3. How can I diagnose the issue related to OBDII code B19A2 in my Mercury passenger seat back blower system?

- You can use a multimeter to test the continuity of the wiring, check the blower speed control module for proper functioning, and inspect the blower motor for any signs of damage.

4. What are the recommended repair tips for fixing OBDII code B19A2 in a Mercury with a passenger seat back blower speed short to battery?

- Repair tips may include repairing or replacing damaged wiring, replacing the faulty blower speed control module, or installing a new blower motor if necessary.

5. Can I continue driving my Mercury with OBDII code B19A2 indicating a passenger seat back blower speed short to battery?

- It is not recommended to drive the vehicle with this issue as it can lead to further electrical problems and potential safety hazards. It is best to address the problem promptly.

6. How much can I expect to pay for repairing OBDII code B19A2 in my Mercury's passenger seat back blower system?

- The repair costs can vary depending on the exact cause of the issue and the parts needed. It is advisable to consult a professional mechanic for an accurate estimate.

7. Is OBDII code B19A2 a common problem in Mercury vehicles with a passenger seat back blower system?

- While it may not be the most common issue, some Mercury models may experience this problem due to electrical faults or component failures in the blower system.

8. Are there any preventive measures I can take to avoid encountering OBDII code B19A2 related to the passenger seat back blower speed short to battery in my Mercury?

- Regularly inspecting the blower system components, ensuring proper wiring connections, and addressing any electrical issues promptly can help prevent this code from appearing.

9. Can a DIY enthusiast with automotive knowledge fix OBDII code B19A2 in a Mercury or should I seek professional help?

- While some DIY enthusiasts may be able to diagnose and repair this issue, it is recommended to seek professional help, especially when dealing with electrical components to ensure proper repairs.

10. Will resetting the OBDII system clear the B19A2 code related to the passenger seat back blower speed short to battery in my Mercury?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear. It is crucial to diagnose and fix the root cause of the problem.