B1405 Lincoln Code - Driver Side Curtain Deployment Control 1 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 Curtain, Driver Side Curtain harness is open or shorted, Driver Side Curtain 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
- B1405 Lincoln indicates Driver Side Curtain Deployment Control 1 Circuit.
- Common causes
- Common causes include Faulty Driver Side Curtain, Driver Side Curtain harness is open or shorted, Driver Side Curtain 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 B1405 Lincoln Description
What are the Possible Causes of the DTC B1405 Lincoln?
- Faulty Driver Side Curtain
- Driver Side Curtain harness is open or shorted
- Driver Side Curtain circuit poor electrical connection
- Faulty Restraint Control Module (RCM)
How to Fix the DTC B1405 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.
Code Tech Notes
B1405:12 Driver Side Curtain Deployment Control 1 Circuit Short to Battery
B1405:13 Driver Side Curtain Deployment Control 1 Circuit Open
B1405:1A Driver Side Curtain Deployment Control 1 Circuit Resistance Below Threshold
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1405 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 B1405 Lincoln code?
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Need Help with the Code?
Get the B1405 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 B1405 Lincoln Code
1. What does the OBDII code B1405 mean on a Lincoln?
Code B1405 refers to an issue with the Driver Side Curtain Deployment Control 1 Circuit, indicating a problem in the airbag system related to the driver's side curtain airbag.
2. What are the symptoms of code B1405 in a Lincoln?
Common symptoms include an illuminated airbag warning light on the dashboard and the potential deactivation of the side curtain airbag system.
3. What causes the B1405 code to appear?
The code can be triggered by a faulty airbag module, damaged wiring or connectors in the circuit, or a malfunctioning sensor related to the side curtain airbag.
4. Is it safe to drive with the B1405 code active?
While the vehicle may still be drivable, the airbag system may not function properly in the event of an accident, which poses a safety risk.
5. How do you diagnose the B1405 code?
Diagnosis involves using an OBDII scanner to confirm the code, visually inspecting the wiring and connectors, and testing the side curtain airbag module and circuit for faults.
6. Can a weak battery trigger the B1405 code?
Yes, a weak or failing battery can cause voltage issues that may affect the airbag system and trigger this code.
7. What repairs are needed to fix the B1405 code?
Repairs may include replacing damaged wiring, repairing or replacing faulty connectors, or replacing the driver side curtain airbag module if defective.
8. How much does it cost to fix the B1405 code?
Repair costs vary depending on the issue but can range from $100 for wiring repairs to over $500 for replacing the airbag module.
9. Can I clear the B1405 code without fixing the problem?
Clearing the code without addressing the underlying issue will likely result in the code returning, as the system continuously monitors for faults.
10. Do I need a professional to fix the B1405 code?
Due to the complexity and safety-critical nature of airbag systems, it is recommended to have a certified technician handle repairs for this code.
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