AutoCodes – Lincoln – B1404 Lincoln

B1404 Lincoln Code - Driver Side Airbag Deployment Control Circuit

Quick Answer

The Restraint Control Module (RCM) analyzes the deployment loop resistance to determine if a fault exists. Common causes include Faulty Driver Side Airbag, Driver Side Airbag harness is open or shorted, Driver Side Airbag 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: B1404 Lincoln indicates Driver Side Airbag Deployment Control Circuit.
Common causes: Common causes include Faulty Driver Side Airbag, Driver Side Airbag harness is open or shorted, Driver Side Airbag 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 1,621

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 Apr 04, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1404 Lincoln Description

The Restraint Control Module (RCM) analyzes the deployment loop resistance to determine if a fault exists. The value displayed in the PID is the deployment loop resistance measured by the RCM. If the value displayed is lower or higher than the desired range, the RCM can set a Diagnostic Trouble Code (DTC). As the deployment loop resistance drifts farther outside the desired range, the chance for a DTC increases. Small variations in resistance can occur due to the effect of road vibrations on terminal fit. Crimps and terminals can be affected by stress and harness movement and can cause an increase in resistance due to wire strain. These variables can result in an intermittent fault. For this reason, the test requires the PID value to be within the desired range before the fault is considered repaired, regardless if the module is reporting an on-demand DTC at the time of diagnosis. Following this direction helps make sure that minor changes in resistance do not create a repeat concern.

OBDII Code B1404 Lincoln - Driver Side Airbag Deployment Control Circuit - AutoCodes.com — B1404 Lincoln Code - Driver Side Airbag Deployment Control Circuit

What does this mean?

What are the Possible Causes of the DTC B1404 Lincoln?

Faulty Driver Side Airbag
Driver Side Airbag harness is open or shorted
Driver Side Airbag circuit poor electrical connection
Faulty Restraint Control Module (RCM)

How to Fix the DTC B1404 Lincoln?

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 does this mean?

Code Tech Notes

B1404:11 Driver Side Airbag Deployment Control Circuit Short to Ground
B1404:12 Driver Side Airbag Deployment Control Circuit Short to Battery
B1404:13 Driver Side Airbag Deployment Control Circuit Open
B1404:1A Driver Side Airbag Deployment Control Circuit Resistance Below Threshold

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1404 Lincoln 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 B1404 Lincoln code?

Need more information on how to fix the B1404 Lincoln code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1404 Lincoln 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 B1404 Lincoln Code

1. What are the common symptoms of OBDII code B1404 in a Lincoln related to the driver side airbag deployment control circuit?

The common symptoms include the airbag warning light illuminating on the dashboard and a potential failure of the driver side airbag to deploy in the event of a collision.

2. What are some possible causes of OBDII code B1404 in a Lincoln?

Potential causes of this code may include a faulty driver side airbag module, damaged wiring or connectors in the airbag circuit, or a malfunction in the airbag control module.

3. How can I diagnose the issue related to OBDII code B1404 in my Lincoln?

Diagnosing the issue typically involves using a diagnostic scanner to retrieve the specific trouble code, conducting a visual inspection of the airbag system components, and testing the circuit for continuity and proper voltage.

4. Is it safe to drive my Lincoln with OBDII code B1404 triggered?

It is not recommended to drive the vehicle with this code active, as it indicates a potential issue with the driver side airbag deployment control circuit, which may compromise the safety of the airbag system in the event of an accident.

5. Can I reset the OBDII code B1404 in my Lincoln to see if it comes back?

While you can clear the code using a diagnostic scanner, it is important to address the underlying issue first. If the problem is not fixed, the code is likely to reappear once the system performs a self-check.

6. What are some repair tips for fixing OBDII code B1404 in a Lincoln?

Repair tips may include checking and repairing any damaged wiring or connectors, replacing the driver side airbag module if faulty, and ensuring all airbag system components are properly connected and functioning.

7. Can I fix OBDII code B1404 in my Lincoln myself, or do I need to take it to a professional mechanic?

The complexity of fixing this code depends on your experience and knowledge of automotive systems. If you are not confident in your abilities, it is recommended to seek the help of a professional mechanic to ensure the issue is properly diagnosed and repaired.

8. How much does it cost to repair OBDII code B1404 in a Lincoln at a repair shop?

The cost of repair can vary depending on the specific issue causing the code, the labor rates of the repair shop, and any replacement parts needed. It is advisable to obtain quotes from different shops for an accurate estimate.

9. Are there any recalls or technical service bulletins related to OBDII code B1404 in Lincoln vehicles?

It is recommended to check with the manufacturer or authorized dealerships for any recalls or technical service bulletins related to this specific OBDII code in Lincoln vehicles to see if there are any known issues or solutions provided by the manufacturer.

10. How important is it to address OBDII code B1404 in a timely manner?

Addressing this code promptly is crucial for ensuring the proper function of the driver side airbag system in your Lincoln. Delaying repairs could potentially compromise the safety of the vehicle occupants in the event of a collision.