B0087:39 Code - Left Rear Side Impact Sensor Internal Malfunction
Quick Answer
The impact sensors are equipped on vehicles to supplement the supplemental inflatable restraint (SIR) system performance. Common causes include Faulty Left Rear Side Impact Sensor, Left Rear Side Impact Sensor harness is open or shorted, Left Rear Side 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
- B0087:39 indicates Left Rear Side Impact Sensor Internal Malfunction.
- Common causes
- Common causes include Faulty Left Rear Side Impact Sensor, Left Rear Side Impact Sensor harness is open or shorted, Left Rear Side 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 B0087:39 Description
What are the Possible Causes of the DTC B0087:39?
- Faulty Left Rear Side Impact Sensor
- Left Rear Side Impact Sensor harness is open or shorted
- Left Rear Side Impact Sensor circuit poor electrical connection
- Faulty Inflatable Restraint Sensing and Diagnostic Module (SDM)
How to Fix the DTC B0087:39?
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
B0087:05 Left Rear Side Impact Sensor High Voltage/Open
B0087:39 Left Rear Side Impact Sensor Internal Malfunction
B0087:3A Left Rear Side Impact Sensor Incorrect Component Installed
B0087:71 Left Rear Side Impact Sensor Invalid Data
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B0087:39 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 B0087:39 Code
1. What are the common symptoms of OBDII code B0087:39 (Left Rear Side Impact Sensor Internal Malfunction)?
- Common symptoms include the airbag warning light illuminated on the dashboard and potential issues with the airbag system's functionality.
2. What can cause the OBDII code B0087:39 to trigger?
- The code can be triggered by a malfunction in the left rear side impact sensor, which may be caused by wiring issues, sensor damage, or internal component failure.
3. How can I diagnose the cause of OBDII code B0087:39?
- Diagnosis typically involves using a scan tool to retrieve the specific trouble code, inspecting the left rear side impact sensor and its wiring for damage, and conducting any necessary electrical tests.
4. Can I drive my vehicle with the OBDII code B0087:39 present?
- It is not recommended to drive the vehicle with the code present, as it indicates a potential issue with the airbag system's ability to deploy in the event of a side impact.
5. How can I repair OBDII code B0087:39 (Left Rear Side Impact Sensor Internal Malfunction)?
- Repairing the code may involve replacing the left rear side impact sensor, repairing any damaged wiring, or addressing any internal component failures identified during diagnosis.
6. Is it safe to reset the OBDII code B0087:39 without addressing the underlying issue?
- Resetting the code without addressing the underlying issue can lead to safety risks, as the airbag system may not function properly in the event of a side impact.
7. How much does it typically cost to repair OBDII code B0087:39?
- The cost of repairing the code can vary depending on the specific cause of the issue, but it may involve parts and labor expenses ranging from $200 to $500 or more.
8. Can a DIY enthusiast fix OBDII code B0087:39 at home?
- While some DIY enthusiasts may be able to diagnose and repair the issue, it is recommended to consult a professional mechanic, especially when dealing with safety-critical components like the airbag system.
9. What are the potential risks of ignoring OBDII code B0087:39?
- Ignoring the code can pose a risk of the airbag system failing to deploy correctly in a side impact collision, potentially leading to increased injury to vehicle occupants.
10. How long does it typically take to repair OBDII code B0087:39?
- The repair time can vary depending on the extent of the issue and the availability of parts, but it may take a few hours to a full day for a mechanic to diagnose and repair the problem.
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