B1118 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
- B1118 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 B1118 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 B1118?
- 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 B1118?
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 B1118 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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Information for Specific Makes
- B1118 Infiniti — Left Air Bag Satellite Sensor
- B1118 Nissan — Left Air Bag Satellite Sensor
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 B1118 Code
1. What are the common symptoms of OBDII code B1118 (Left Air Bag Satellite Sensor)?
The common symptoms include the airbag warning light staying illuminated on the dashboard and potential issues with the left side airbag deployment system.
2. What are the possible causes of OBDII code B1118?
The code B1118 typically indicates a fault with the left air bag satellite sensor, which could be caused by wiring issues, a malfunctioning sensor, or a problem with the airbag control module.
3. How can I diagnose the OBDII code B1118 related to the Left Air Bag Satellite Sensor?
Diagnosing this code usually involves using a diagnostic scanner to retrieve the specific fault code, inspecting the wiring and connections related to the left air bag satellite sensor, and testing the sensor itself for proper functionality.
4. Can I drive my vehicle with OBDII code B1118 present?
It is not recommended to drive the vehicle with an active airbag fault code like B1118, as it may compromise the safety features of the airbag system in the event of a collision.
5. How can I repair OBDII code B1118 associated with the Left Air Bag Satellite Sensor?
Repairing this code may involve replacing the faulty left air bag satellite sensor, repairing any damaged wiring or connections, or reprogramming the airbag control module to clear the fault code.
6. Is it possible to reset the OBDII code B1118 without fixing the underlying issue?
Resetting the code without addressing the root cause may temporarily turn off the warning light, but the issue will likely reappear, and the safety of the airbag system will remain compromised.
7. Are there any safety concerns associated with OBDII code B1118?
Yes, OBDII code B1118 related to the Left Air Bag Satellite Sensor indicates a potential safety hazard as it involves the functionality of the airbag system, which is crucial for occupant protection in a collision.
8. Can a DIY enthusiast repair OBDII code B1118 at home?
While some basic troubleshooting steps can be performed at home, repairing OBDII code B1118 related to the Left Air Bag Satellite Sensor may require specialized tools and expertise, so it is recommended to seek professional help.
9. How much does it typically cost to repair OBDII code B1118?
The cost of repairing OBDII code B1118 can vary depending on the root cause of the issue, the parts needed for replacement, and the labor charges, but it may range from a few hundred to over a thousand dollars.
10. Is it necessary to visit a dealership for OBDII code B1118 repair, or can an independent auto repair shop handle it?
An independent auto repair shop with experience in airbag systems and OBDII diagnostics can usually handle the repair of OBDII code B1118 effectively, potentially offering cost savings compared to dealership services.
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