B1945 Lincoln Code - Left Front Impact Sensor Not Mounted To Vehicle Properly/Ground Circuit Open
Quick Answer
The Air Bag Diagnostic Monitor measures resistance between circuit and reference ground. Common causes include Faulty Left Front Impact Sensor, Left Front Impact Sensor harness is open or shorted, Left Front Impact Sensor 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
- B1945 Lincoln indicates Left Front Impact Sensor Not Mounted To Vehicle Properly/Ground Circuit Open.
- Common causes
- Common causes include Faulty Left Front Impact Sensor, Left Front Impact Sensor harness is open or shorted, Left Front Impact Sensor 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 B1945 Lincoln Description
What are the Possible Causes of the DTC B1945 Lincoln?
- Faulty Left Front Impact Sensor
- Left Front Impact Sensor harness is open or shorted
- Left Front Impact Sensor circuit poor electrical connection
- Faulty Air Bag Diagnostic Monitor
How to Fix the DTC B1945 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 B1945 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.
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Get the B1945 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 B1945 Lincoln Code
1. What are the common symptoms of OBDII code B1945 Lincoln?
The common symptoms of code B1945 include the airbag warning light illuminating on the dashboard and potential issues with the airbag system.
2. What can cause the OBDII code B1945 Lincoln to trigger?
The code B1945 is typically triggered when the left front impact sensor is not mounted properly to the vehicle or when there is an open circuit in the ground connection.
3. How serious is OBDII code B1945 Lincoln?
Code B1945 should be taken seriously as it indicates a potential problem with the airbag system, which may affect its functionality in the event of a collision.
4. Can I continue driving with OBDII code B1945 active?
It is not recommended to drive with the B1945 code active, as it may compromise the proper functioning of the airbag system in case of an accident.
5. How can I diagnose the cause of OBDII code B1945 Lincoln?
Diagnosing the cause of B1945 usually involves inspecting the left front impact sensor for proper mounting and checking the ground circuit for any open connections.
6. What are some repair tips for fixing OBDII code B1945?
Repair tips for B1945 may include re-mounting the left front impact sensor securely to the vehicle and ensuring a proper ground connection is established.
7. Can a DIY enthusiast fix OBDII code B1945 Lincoln?
While some basic checks and repairs may be possible for a DIY enthusiast, dealing with airbag system issues, including code B1945, is best left to professional technicians due to safety concerns.
8. How much does it typically cost to repair OBDII code B1945 Lincoln at a mechanic?
The cost of repairing B1945 can vary depending on the exact cause of the issue and local labor rates. It's recommended to consult with a mechanic for an accurate estimate.
9. Will resetting the OBDII code B1945 turn off the airbag warning light?
Resetting the code may temporarily turn off the warning light, but if the underlying issue with the left front impact sensor or ground circuit is not addressed, the light will likely reappear.
10. How can I prevent OBDII code B1945 from coming back in the future?
To prevent the recurrence of B1945, make sure the left front impact sensor is securely mounted to the vehicle and regularly inspect the airbag system for any signs of damage or wear.
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