B3855 Saturn Code - Rollover Sensor Performance
Quick Answer
The B3855 diagnostic trouble code for Saturn vehicles specifically relates to the rollover sensor performance. Common causes include Faulty rollover sensor, Wiring issues or damage to the sensor's circuit, Corrosion or water damage affecting the sensor. 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
- B3855 Saturn indicates Rollover Sensor Performance.
- Common causes
- Common causes include Faulty rollover sensor, Wiring issues or damage to the sensor's circuit, Corrosion or water damage affecting the sensor.
- 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 B3855 Saturn Description
The B3855 diagnostic trouble code for Saturn vehicles specifically relates to the rollover sensor performance. The rollover sensor is a crucial safety feature in modern vehicles that detects when a rollover or significant impact occurs. This code indicates that there may be an issue with the sensor's performance, which could potentially compromise the vehicle's ability to deploy safety features such as airbags and seatbelt tensioners in the event of a rollover.
Common Causes of B3855 Saturn
- Faulty rollover sensor
- Wiring issues or damage to the sensor's circuit
- Corrosion or water damage affecting the sensor
- Impact damage to the sensor from a previous accident
- Software or system malfunction within the vehicle's safety control module
Symptoms of B3855 Saturn
- Airbag warning light illuminated on the dashboard
- Inconsistent or non-functioning airbag deployment
- Vehicle stability control system malfunction
- Unintended deployment of airbags
- Inaccurate data being sent to the vehicle's airbag control module
How to Fix B3855 Saturn
- Diagnose the specific cause of the B3855 code using a diagnostic scanner.
- Inspect the rollover sensor and associated wiring for any damage or corrosion.
- Repair or replace any faulty components identified during the inspection.
- Clear the trouble code from the vehicle's computer system.
- Perform a test drive to ensure the issue is resolved and that the airbag system functions correctly.
Cost to Fix B3855 Saturn
The cost of repairing a B3855 code related to rollover sensor performance can vary depending on the specific cause of the issue and the labor rates at the repair shop. Generally, the repair costs for this type of issue can range from $200 to $500, including parts and labor. It is advisable to consult with a trusted mechanic or repair shop to get an accurate estimate based on the vehicle's make and model, as well as the extent of the repair needed. Labor rates typically range from $80 to $150 per hour, but can vary based on location and shop rates.
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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 B3855 Saturn Code
1. What does the OBDII code B3855 mean on a Saturn?
B3855 indicates an issue with the rollover sensor's performance, which is responsible for detecting potential vehicle rollovers.
2. What are the common symptoms of the B3855 code?
Symptoms may include the airbag warning light illuminating, instability in airbag system operation, or an inability to detect rollover scenarios properly.
3. What causes the B3855 code to appear?
This code can be triggered by a faulty rollover sensor, damaged wiring or connections, or a malfunction in the airbag control module.
4. Is it safe to drive with the B3855 code active?
While the vehicle may still be drivable, the safety systems like airbags may not function properly in a rollover situation. It’s best to address the issue promptly.
5. How can I diagnose the B3855 code on my Saturn?
Start by scanning the vehicle for codes with an OBDII scanner, then inspect the rollover sensor, wiring, and connectors for damage or corrosion.
6. Can I fix the B3855 code myself?
If you have basic automotive skills, you may be able to check and repair loose or corroded wiring. However, sensor replacement or airbag system repairs are best left to professionals.
7. How much does it cost to repair the B3855 code?
Repair costs can vary widely, with sensor replacement ranging from $200 to $500, depending on labor and parts pricing.
8. Does the B3855 code always indicate a sensor failure?
Not necessarily. It could also be caused by wiring issues, a faulty airbag control module, or even software glitches.
9. Will clearing the B3855 code with a scanner fix the issue?
Clearing the code may turn off the warning temporarily, but the root cause must be addressed to prevent the code from returning.
10. Can a weak battery cause the B3855 code?
While rare, a weak or failing battery can sometimes cause electrical issues that trigger false codes, including B3855. Ensure your battery is in good condition.
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