B1120 Nissan Code - Left Air Bag Satellite Sensor
Quick Answer
When the Air Bag Diagnosis Sensor Unit (ACU) define the both signal voltage of the “G†sensor and the Safing sensor to be that of the collision which exceeds the specified level, the driving circuit switches on and feeds the electric ignitor of both the side air bag and curtain air bag. Common causes include Faulty Left Air Bag Satellite Sensor, Left Air Bag Satellite Sensor harness is open or shorted, Left Air Bag Satellite 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
- B1120 Nissan indicates Left Air Bag Satellite Sensor.
- Common causes
- Common causes include Faulty Left Air Bag Satellite Sensor, Left Air Bag Satellite Sensor harness is open or shorted, Left Air Bag Satellite 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 B1120 Nissan Description
The Satellite Sensor is an integrated type of the G sensor element for side collision with output terminals for signal voltage.
What are the Possible Causes of the DTC B1120 Nissan?
- Faulty Left Air Bag Satellite Sensor
- Left Air Bag Satellite Sensor harness is open or shorted
- Left Air Bag Satellite Sensor circuit poor electrical connection
How to Fix the DTC B1120 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 B1120 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 B1120 Nissan Code
1. What are the common symptoms of OBDII code B1120 Nissan (Left Air Bag Satellite Sensor)?
- Common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the airbag system.
2. What could be causing the OBDII code B1120 in a Nissan related to the Left Air Bag Satellite Sensor?
- The code B1120 may be triggered by a faulty left air bag satellite sensor, damaged wiring, or a poor connection.
3. How can I diagnose the OBDII code B1120 Nissan issue with the Left Air Bag Satellite Sensor?
- A proper diagnosis can be done by using a professional OBDII scanner to read the code, inspecting the sensor and wiring for damage, and checking connections for looseness.
4. What are some repair tips for fixing the OBDII code B1120 Nissan involving the Left Air Bag Satellite Sensor?
- Repair tips include replacing the faulty left air bag satellite sensor, repairing damaged wiring, ensuring all connections are secure, and clearing the code with an OBDII scanner.
5. Is it safe to drive with the OBDII code B1120 Nissan related to the Left Air Bag Satellite Sensor?
- It is not recommended to drive with an active airbag system fault code like B1120, as it may affect the proper deployment of the airbags in case of an accident.
6. Can I reset the OBDII code B1120 Nissan on my own after fixing the issue with the Left Air Bag Satellite Sensor?
- Yes, after fixing the issue, you can reset the code using an OBDII scanner that has the capability to clear fault codes.
7. Are there any specific precautions to take when working on the Left Air Bag Satellite Sensor in a Nissan to fix the B1120 code?
- It is crucial to disconnect the vehicle's battery before working on the airbag system to prevent accidental deployment and ensure safety.
8. How much does it typically cost to repair the OBDII code B1120 Nissan associated with the Left Air Bag Satellite Sensor?
- The cost of repairing the B1120 code can vary depending on the specific issue, but it may involve sensor replacement, wiring repairs, and labor costs.
9. Can a DIY enthusiast with some automotive experience fix the OBDII code B1120 Nissan related to the Left Air Bag Satellite Sensor?
- While some repairs can be done by DIY enthusiasts, working on the airbag system requires specialized knowledge and tools, so it is recommended to consult a professional.
10. Will fixing the OBDII code B1120 Nissan involving the Left Air Bag Satellite Sensor affect the overall safety of the vehicle?
- Yes, ensuring that the airbag system is functioning properly by fixing the B1120 code is crucial for maintaining the safety features of the vehicle in case of an accident.
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