AutoCodes – Mercury – B19A8 Mercury

B19A8 Mercury Code - Driver Seat Back Blower Speed Short To Ground

Quick Answer

The Front Seat Climate Control Module (SCME) supplies voltage and ground to the driver seat backrest blower motor. Common causes include Faulty Cushion Blower Motor, Cushion Blower Motor harness is open or shorted, Cushion 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: B19A8 Mercury indicates Driver Seat Back Blower Speed Short To Ground.
Common causes: Common causes include Faulty Cushion Blower Motor, Cushion Blower Motor harness is open or shorted, Cushion 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 545

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 04, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B19A8 Mercury Description

The Front Seat Climate Control Module (SCME) supplies voltage and ground to the driver 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 driver seat backrest blower speed circuit is shorted to voltage, the Front Seat Climate Control Module (SCME) shuts down the driver seat system and sets this Diagnostic Trouble Code (DTC).

OBDII Code B19A8 Mercury - Driver Seat Back Blower Speed Short To Ground - AutoCodes.com — B19A8 Mercury Code - Driver Seat Back Blower Speed Short To Ground

What does this mean?

What are the Possible Causes of the DTC B19A8 Mercury?

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

How to Fix the DTC B19A8 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 B19A8 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 B19A8 Mercury code?

Need more information on how to fix the B19A8 Mercury code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B19A8 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 B19A8 Mercury Code

1. What are the common symptoms of OBDII code B19A8 in a Mercury related to the driver seat back blower speed short to ground issue?

The common symptoms include inoperative driver seat back blower, erratic blower speed control, and potential electrical issues in the driver seat.

2. What could cause the OBDII code B19A8 in a Mercury indicating a driver seat back blower speed short to ground problem?

Possible causes include damaged wiring or connectors, a faulty blower motor, a malfunctioning blower speed control module, or a short circuit in the electrical system.

3. How can I diagnose the OBDII code B19A8 in a Mercury for the driver seat back blower speed short to ground issue?

Diagnosis involves inspecting the wiring and connectors for damage, testing the blower motor for proper function, checking the blower speed control module, and performing continuity tests to identify any short circuits.

4. What are some repair tips for addressing the OBDII code B19A8 in a Mercury related to the driver seat back blower speed short to ground problem?

Repair tips include repairing or replacing damaged wiring and connectors, replacing the blower motor if faulty, repairing or replacing the blower speed control module, and addressing any short circuits in the system.

5. Can I continue to drive my Mercury if OBDII code B19A8 is present indicating a driver seat back blower speed short to ground issue?

It is not recommended to continue driving the vehicle with this issue, as it can lead to further electrical problems or potential safety hazards related to the driver seat back blower system.

6. How serious is the OBDII code B19A8 in a Mercury related to the driver seat back blower speed short to ground problem?

While the issue may not directly impact the drivability of the vehicle, it is important to address it promptly to prevent potential electrical malfunctions or safety concerns associated with the driver seat back blower.

7. Can I reset the OBDII code B19A8 in a Mercury after addressing the driver seat back blower speed short to ground problem?

Once the underlying issue causing the code has been repaired, the code can be cleared using an OBDII scanner to reset the system and ensure the problem has been resolved.

8. Are there any recalls or technical service bulletins related to OBDII code B19A8 in a Mercury for the driver seat back blower speed short to ground issue?

It is recommended to check with the manufacturer or authorized dealerships for any recalls or technical service bulletins specific to this OBDII code in your Mercury model to see if there are any related issues identified by the manufacturer.

9. How much can I expect to pay for repairing the OBDII code B19A8 in a Mercury indicating a driver seat back blower speed short to ground problem?

The cost of repair can vary depending on the specific cause of the issue, but it may involve expenses for parts replacement, labor, and diagnostic services, so it's advisable to consult a professional technician for an accurate estimate.

10. Is it possible to prevent the OBDII code B19A8 in a Mercury for the driver seat back blower speed short to ground issue from recurring in the future?

To prevent recurrence, ensure proper maintenance of the blower system components, address any electrical issues promptly, and follow recommended service schedules to keep the system in good working condition and avoid potential shorts or malfunctions.