B2855 Ford Code - Crash Zone Sensor Circuit Short
Quick Answer
The Air Bag Control Module monitors the Front Crash Sensor. Common causes include Faulty Front Crash Sensor, Front Crash Sensor harness is open or shorted, Front Crash 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
- B2855 Ford indicates Crash Zone Sensor Circuit Short.
- Common causes
- Common causes include Faulty Front Crash Sensor, Front Crash Sensor harness is open or shorted, Front Crash 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 B2855 Ford Description
What are the Possible Causes of the DTC B2855 Ford?
- Faulty Front Crash Sensor
- Front Crash Sensor harness is open or shorted
- Front Crash Sensor circuit poor electrical connection
- Faulty Air Bag Control Module
How to Fix the DTC B2855 Ford?
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 B2855 Ford 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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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 B2855 Ford Code
1. What are the common symptoms of OBDII code B2855 on a Ford vehicle?
- Common symptoms include the airbag warning light staying on, erratic airbag deployment, or complete airbag system failure.
2. What can cause the OBDII code B2855 Crash Zone Sensor Circuit Short on a Ford?
- This code is typically triggered by a short circuit in the crash zone sensor circuit, which could be caused by damaged wiring, a faulty sensor, or a problem with the airbag control module.
3. How serious is the OBDII code B2855 on a Ford vehicle?
- This code indicates a potential issue with the airbag system, which is a critical safety component in the vehicle. It is important to address this issue promptly to ensure the airbags function properly in the event of a collision.
4. How can I diagnose the OBDII code B2855 Crash Zone Sensor Circuit Short on my Ford?
- Diagnosing this code usually requires a scan tool to read the specific fault codes and potentially some electrical testing to pinpoint the exact location of the short circuit.
5. Can I still drive my Ford with the OBDII code B2855 present?
- It is not recommended to drive the vehicle with this code present, as it indicates a problem with the airbag system that could potentially affect its performance during a collision.
6. How can I repair the OBDII code B2855 on my Ford?
- Repairing this code typically involves locating and fixing the short circuit in the crash zone sensor circuit. This may require repairing or replacing damaged wiring, sensors, or the airbag control module.
7. Is it possible to reset the OBDII code B2855 on a Ford without fixing the issue?
- While you can clear the code with a scan tool, it is not recommended to do so without addressing the underlying issue, as it could compromise the safety of the airbag system.
8. How much does it cost to repair the OBDII code B2855 on a Ford?
- The cost of repair can vary depending on the extent of the damage and the specific components that need to be replaced. It is advisable to consult a professional mechanic for an accurate estimate.
9. Can the OBDII code B2855 be intermittent or come back after being cleared?
- Yes, this code can sometimes be intermittent, especially if the short circuit is caused by a loose connection. It is important to thoroughly diagnose and repair the issue to prevent it from recurring.
10. Are there any safety precautions I should take if the OBDII code B2855 appears on my Ford?
- If this code appears, it is important to exercise caution and have the airbag system inspected by a qualified technician as soon as possible to ensure the safety of the vehicle occupants.
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