AutoCodes – Lincoln – B1407 Lincoln

B1407 Lincoln Code - Passenger 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 Passenger Side Airbag, Passenger Side Airbag harness is open or shorted, Passenger 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: B1407 Lincoln indicates Passenger Side Airbag Deployment Control Circuit.
Common causes: Common causes include Faulty Passenger Side Airbag, Passenger Side Airbag harness is open or shorted, Passenger 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 1,129

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 B1407 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 B1407 Lincoln - Passenger Side Airbag Deployment Control Circuit - AutoCodes.com — B1407 Lincoln Code - Passenger Side Airbag Deployment Control Circuit

What does this mean?

What are the Possible Causes of the DTC B1407 Lincoln?

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

How to Fix the DTC B1407 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

B1407:11 Passenger Side Airbag Deployment Control Circuit Short to Ground
B1407:12 Passenger Side Airbag Deployment Control Circuit Short to Battery
B1407:13 Passenger Side Airbag Deployment Control Circuit Open
B1407:1A Passenger Side Airbag Deployment Control Circuit Resistance Below Threshold

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1407 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 B1407 Lincoln code?

Need more information on how to fix the B1407 Lincoln code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1407 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 B1407 Lincoln Code

1. What are the common symptoms of OBDII code B1407 in a Lincoln related to the passenger side airbag deployment control circuit?

- The common symptoms include the airbag warning light illuminating on the dashboard and a potential failure of the passenger side airbag system.

2. What are the possible causes of OBDII code B1407 in a Lincoln?

- The code B1407 in a Lincoln is usually caused by issues such as a faulty passenger side airbag module, damaged wiring harness, or a poor connection in the airbag deployment control circuit.

3. How can I diagnose the OBDII code B1407 related to the passenger side airbag in my Lincoln?

- To diagnose the issue, you can use a diagnostic scanner to retrieve the specific fault code, inspect the wiring harness for any visible damage, and test the passenger side airbag module for proper functionality.

4. Is it safe to drive my Lincoln with OBDII code B1407 triggered for the passenger side airbag deployment control circuit?

- It is not recommended to drive the vehicle with the code B1407 triggered, as it indicates a potential issue with the passenger side airbag system, which could compromise passenger safety in the event of a collision.

5. How can I reset the OBDII code B1407 for the passenger side airbag in my Lincoln?

- To reset the code B1407, you will need to diagnose and repair the underlying issue causing the fault code. Once the issue is fixed, you can use a diagnostic scanner to clear the code and reset the airbag system.

6. Can I repair the OBDII code B1407 related to the passenger side airbag in my Lincoln myself?

- While some basic troubleshooting steps can be taken, it is recommended to have a professional mechanic diagnose and repair the issue to ensure the passenger side airbag system functions correctly and safely.

7. What are some tips for preventing OBDII code B1407 from occurring in the future in my Lincoln?

- Regularly inspecting the airbag system components, avoiding physical damage to the wiring harness, and addressing any airbag warning lights promptly can help prevent the occurrence of code B1407 in the future.

8. How much does it typically cost to repair OBDII code B1407 related to the passenger side airbag in a Lincoln?

- The cost of repairing OBDII code B1407 can vary depending on the specific issue causing the fault code, but it may range from a few hundred to over a thousand dollars, including parts and labor.

9. Can OBDII code B1407 in a Lincoln be triggered by other factors besides the passenger side airbag deployment control circuit?

- While code B1407 is primarily related to the passenger side airbag deployment control circuit, it is essential to diagnose the specific issue to determine if any other factors are contributing to the fault code.

10. How long does it usually take to repair OBDII code B1407 related to the passenger side airbag in a Lincoln?

- The repair time for OBDII code B1407 can vary depending on the complexity of the issue, availability of parts, and the mechanic's experience, but it may take several hours to a day to complete the repair.