B0004 Lincoln Code - Driver Knee Bolster Deployment Control
Quick Answer
The Restraints Control Module (RCM) monitors all deployable device and sensor circuits for a signal cross coupled (short) between circuits. Common causes include Faulty Driver Knee Airbag, Driver Knee Airbag harness is open or shorted, Driver Knee 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
- B0004 Lincoln indicates Driver Knee Bolster Deployment Control.
- Common causes
- Common causes include Faulty Driver Knee Airbag, Driver Knee Airbag harness is open or shorted, Driver Knee 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.
Code B0004 Lincoln Description
What are the Possible Causes of the DTC B0004 Lincoln?
- Faulty Driver Knee Airbag
- Driver Knee Airbag harness is open or shorted
- Driver Knee Airbag circuit poor electrical connection
How to Fix the DTC B0004 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 is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B0004 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 B0004 Lincoln code?
Need more information on how to fix the B0004 Lincoln code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B0004 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.
Frequently Asked Questions about B0004 Lincoln Code
1. What are the common symptoms of OBDII code B0004 in a Lincoln related to the Driver Knee Bolster Deployment Control?
- Common symptoms may include the airbag warning light illuminating on the dashboard and potential issues with the driver knee airbag system.
2. What are some possible causes of OBDII code B0004 in a Lincoln?
- Causes of this code could include a faulty driver knee bolster deployment control module, damaged wiring, or a problem with the airbag system itself.
3. How can I diagnose the issue related to OBDII code B0004 in my Lincoln?
- Proper diagnosis would involve using a professional OBDII scanner to read the code and inspecting the driver knee bolster deployment control module, wiring, and airbag components for any visible damage or issues.
4. Can I still drive my Lincoln with OBDII code B0004 present?
- It is not recommended to drive your Lincoln with any airbag-related fault codes present, as it may affect the functionality of the airbag system in the event of an accident.
5. How do I repair OBDII code B0004 in my Lincoln?
- Repairing this code typically involves addressing the root cause, which may include replacing the driver knee bolster deployment control module, repairing damaged wiring, or fixing any issues with the airbag system components.
6. Are there any safety concerns associated with OBDII code B0004 in a Lincoln?
- Yes, there are safety concerns as this code relates to the driver knee airbag system, which is designed to provide protection in the event of a collision. It is important to address this issue promptly.
7. Can I reset the OBDII code B0004 in my Lincoln on my own?
- While you can clear the code with an OBDII scanner, it is crucial to investigate and repair the underlying issue causing the fault code to prevent it from reoccurring.
8. How much does it typically cost to repair OBDII code B0004 in a Lincoln?
- Repair costs can vary depending on the specific cause of the issue, but it may involve parts and labor expenses ranging from a few hundred to several hundred dollars.
9. Is OBDII code B0004 a common issue in Lincoln vehicles?
- While it may not be as common as some other OBDII codes, issues related to the driver knee bolster deployment control can occur in Lincoln vehicles and should be addressed promptly for safety reasons.
10. Can I prevent OBDII code B0004 from appearing in my Lincoln?
- Regular maintenance and inspections of the airbag system, including the driver knee bolster deployment control module, can help prevent issues that may trigger this fault code.
Discuss the causes and fixes for B0004 Lincoln OBDII Code
Code B0004 Lincoln comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
