B1125 Infiniti Code - Diagnosis Sensor Unit
Quick Answer
The Air Bag Diagnosis Sensor Unit detects the whole SRS electrical system and displays the malfunction either by illuminating or blinking the air bag warning lamp in the combination meter. Common causes include Faulty Diagnosis Sensor Unit, Diagnosis Sensor Unit harness is open or shorted, Diagnosis Sensor Unit 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
- B1125 Infiniti indicates Diagnosis Sensor Unit.
- Common causes
- Common causes include Faulty Diagnosis Sensor Unit, Diagnosis Sensor Unit harness is open or shorted, Diagnosis Sensor Unit 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 B1125 Infiniti Description
The Air Bag Diagnosis Sensor Unit contains the “G†sensors for both frontal and side collisions and spare battery function in case of main battery damaged in a collision.
What are the Possible Causes of the DTC B1125 Infiniti?
- Faulty Diagnosis Sensor Unit
- Diagnosis Sensor Unit harness is open or shorted
- Diagnosis Sensor Unit circuit poor electrical connection
How to Fix the DTC B1125 Infiniti?
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 B1125 Infiniti 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.
Need more information about the B1125 Infiniti code?
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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 B1125 Infiniti Code
1. What are the common symptoms of OBDII code B1125 in an Infiniti related to the Diagnosis Sensor Unit?
The common symptoms include issues with the airbag system, such as the airbag light staying illuminated on the dashboard.
2. What causes the OBDII code B1125 related to the Diagnosis Sensor Unit in an Infiniti?
The code B1125 is typically triggered by a malfunction in the Diagnosis Sensor Unit, which is responsible for monitoring the airbag system.
3. How can I diagnose the OBDII code B1125 in my Infiniti?
Diagnosing the B1125 code requires advanced diagnostic tools to scan the airbag system for specific fault codes and pinpoint the exact issue with the Diagnosis Sensor Unit.
4. Can I repair the Diagnosis Sensor Unit related to the OBDII code B1125 in my Infiniti myself?
Repairing the Diagnosis Sensor Unit may require specialized knowledge and tools. It is recommended to have a professional technician inspect and repair the unit to ensure safety and proper functioning of the airbag system.
5. Are there any troubleshooting tips for resolving the OBDII code B1125 in an Infiniti?
Check the wiring and connections related to the Diagnosis Sensor Unit for any damage or loose connections. Sometimes, a simple fix like securing a loose connection can resolve the issue.
6. Is it safe to drive my Infiniti with the OBDII code B1125 related to the Diagnosis Sensor Unit illuminated?
It is not recommended to drive the vehicle with the airbag system compromised. The malfunctioning Diagnosis Sensor Unit can affect the proper deployment of airbags in case of an accident.
7. How much does it typically cost to repair the Diagnosis Sensor Unit triggering the OBDII code B1125 in an Infiniti?
The cost of repairing the Diagnosis Sensor Unit can vary depending on the extent of the damage and whether any parts need to be replaced. It is advisable to consult a professional for an accurate estimate.
8. Can resetting the OBDII code B1125 related to the Diagnosis Sensor Unit in my Infiniti solve the issue?
Resetting the code may temporarily turn off the warning light, but if the underlying issue with the Diagnosis Sensor Unit is not addressed, the code is likely to reappear.
9. Are there any recalls or service bulletins related to the OBDII code B1125 in Infiniti vehicles?
It is recommended to check with an authorized Infiniti service center or the manufacturer's website for any recalls or service bulletins related to the B1125 code and the Diagnosis Sensor Unit.
10. How can I prevent the OBDII code B1125 from occurring in my Infiniti in the future?
Regular maintenance and inspections of the airbag system, including the Diagnosis Sensor Unit, can help prevent issues that trigger the B1125 code. Follow the manufacturer's recommended maintenance schedule for optimal performance.
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