B1122 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
- B1122 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 B1122 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 B1122 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 B1122 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 B1122 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.
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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 B1122 Infiniti Code
1. What are the common symptoms of OBDII code B1122 in an Infiniti?
- Common symptoms include issues with the airbag system, such as the airbag light staying on, the airbag not deploying in an accident, or warning messages on the dashboard.
2. What can cause the OBDII code B1122 in an Infiniti?
- The most common cause of code B1122 in an Infiniti is a malfunction or failure of the Diagnosis Sensor Unit within the airbag system.
3. How serious is OBDII code B1122 in an Infiniti?
- Code B1122 should be taken seriously as it indicates a problem with the airbag system, which could potentially compromise the safety of the vehicle in the event of a collision.
4. Can I continue driving my Infiniti with OBDII code B1122?
- It is not recommended to drive the vehicle with code B1122 present, as the airbag system may not function properly in the event of an accident.
5. How can I diagnose and repair OBDII code B1122 in my Infiniti?
- Diagnosis and repair of code B1122 typically involve inspecting the Diagnosis Sensor Unit, checking the wiring and connections, and potentially replacing the sensor unit if necessary.
6. Is it possible to reset OBDII code B1122 in an Infiniti without fixing the underlying issue?
- While you can clear the code using an OBDII scanner, it is important to address the root cause of the problem to ensure the safety and functionality of the airbag system.
7. Are there any DIY tips for troubleshooting OBDII code B1122 in an Infiniti?
- DIY troubleshooting tips include checking the airbag fuse, inspecting the airbag connectors for loose or damaged wires, and ensuring the Diagnosis Sensor Unit is properly connected.
8. How much does it cost to repair OBDII code B1122 in an Infiniti?
- The cost of repairing code B1122 can vary depending on the extent of the issue and whether the Diagnosis Sensor Unit needs to be replaced. It is advisable to consult a professional for an accurate estimate.
9. Can a mechanic help me fix OBDII code B1122 in my Infiniti?
- Yes, a qualified mechanic with experience in airbag systems can diagnose and repair code B1122 in your Infiniti to ensure the proper functioning of the airbag system.
10. Will fixing OBDII code B1122 in my Infiniti affect the vehicle's warranty?
- If your Infiniti is still under warranty, it is recommended to have the issue addressed by an authorized dealership or service center to ensure compliance with warranty terms and conditions.
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