B1018 Nissan Code - Occupant Sensor
Quick Answer
The Occupant Sensor suppresses the deployment of passenger air bag when the condition of the passenger seat is empty or child and child-seat. Common causes include Faulty Occupant Sensor, Occupant Sensor harness is open or shorted, Occupant 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
- B1018 Nissan indicates Occupant Sensor.
- Common causes
- Common causes include Faulty Occupant Sensor, Occupant Sensor harness is open or shorted, Occupant 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 B1018 Nissan Description
The Occupant Sensor unit classifies occupant in the passenger seat and transmits it to Occupant Classification System (OCS) control unit.
Plural Occupant Sensors are installed in the sensor mat to prevent incorrect sensing induced by the sitting position.
What are the Possible Causes of the DTC B1018 Nissan?
- Faulty Occupant Sensor
- Occupant Sensor harness is open or shorted
- Occupant Sensor circuit poor electrical connection
How to Fix the DTC B1018 Nissan?
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 B1018 Nissan 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 B1018 Nissan Code
1. What are the common symptoms of OBDII code B1018 Nissan related to the Occupant Sensor?
The common symptoms include the airbag warning light being illuminated on the dashboard and potential issues with the airbag system.
2. What are the possible causes of OBDII code B1018 Nissan for the Occupant Sensor?
The code B1018 typically indicates a fault with the occupant sensor itself or issues related to its wiring or connections.
3. How can I diagnose the OBDII code B1018 Nissan for the Occupant Sensor issue?
Diagnosing the B1018 code usually involves using an OBDII scanner to read the fault code and inspecting the occupant sensor and its wiring for any visible damage or loose connections.
4. Can I repair the OBDII code B1018 Nissan related to the Occupant Sensor myself?
Repairing the B1018 code may require specialized knowledge and tools, so it is recommended to consult with a professional mechanic or dealership for accurate diagnosis and repair.
5. Is it safe to drive with the OBDII code B1018 Nissan triggered by the Occupant Sensor issue?
It is not recommended to drive with the B1018 code active, as it may indicate a problem with the airbag system, compromising occupant safety in the event of a collision.
6. How much does it typically cost to repair the OBDII code B1018 Nissan for the Occupant Sensor?
The cost of repairing the B1018 code can vary depending on the specific issue, but it may involve sensor replacement, wiring repairs, or system recalibration, potentially ranging from a few hundred to over a thousand dollars.
7. Can resetting the OBDII code B1018 Nissan for the Occupant Sensor fix the issue temporarily?
Resetting the B1018 code may temporarily clear the fault code, but if the underlying issue with the occupant sensor or its components persists, the code is likely to reappear.
8. What should I do if the OBDII code B1018 Nissan keeps coming back after repairs?
If the B1018 code keeps reappearing after repairs, it is recommended to have the system rechecked by a professional to ensure the issue is fully resolved.
9. Are there any recalls or technical service bulletins related to the OBDII code B1018 Nissan Occupant Sensor?
It is advisable to check with Nissan dealerships or online resources for any recalls or technical service bulletins related to the B1018 code to see if there are known issues or solutions provided by the manufacturer.
10. How important is it to address the OBDII code B1018 Nissan for the Occupant Sensor promptly?
Addressing the B1018 code promptly is crucial for ensuring the proper function of the airbag system and maintaining occupant safety in the vehicle, making timely diagnosis and repair essential.
Discuss the causes and fixes for B1018 Nissan OBDII Code
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my 2010 Murano was diagnosed with B1018 error...faulty airbag sensors, so side airbag will not deploy in a wreck. Two issues need discussion and would like feedback from anyone else:
1. there have been various models and years recalled for this safety issue, but not the 2010 Murano. Nissan North America has not helpful to this point.
2. you cannot just replace this $50 part. the design is such that the entire seat must be replaced! a $2,000+ repair for a $50 to $80 part. Nissan has corrected this serious design flaw in subsequent years, but that fact does not help me. Neither will Nissan N.A.My vehicle is out warranty so I would pay a reasonable service and parts charge to have this replaced, but do not want to replace a $2,000 seat because of their poor design.
I've been told there is an easy workaround, which I'll pursue if Nissan does not do the right thing.
Anyone else have this problem?
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I have a 2008 Nissan Frontier SE. I popped the B1018 code. Additionally, I have a P1564 code which is ASCD SW which states I could have a loose or disconnected wire in the steering column wires and my cruise control only turns on if your crank the wheel hard to the left. I’m thinking I could have a bad connection which I will check. I’m wondering if this could also cause the passenger seat belt B1018 along with cruise control issue. A Coil Spring or a faulty ECU. If anyone has any thoughts I’d appreciate it.
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The B1018 code is not for the Passenger Side Seat Belt. The P1018 is for the Occupant Sensor, which is the sensor under the Passenger Side Seat Cushing. I can't see how both problems are related, more than likely you have two different problems. Try clearing the code first and check if the code comes back.
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