B1009 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
- B1009 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 B1009 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 B1009 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 B1009 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 B1009 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 B1009 Infiniti code?
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Need Help with the Code?
Get the B1009 Infiniti code diagnosed by a professional: Find a repair shop in your area
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 B1009 Infiniti Code
1. What is OBDII code B1009 in an Infiniti?
Code B1009 in an Infiniti refers to a fault with the Diagnosis Sensor Unit, which is part of the vehicle's airbag system.
2. What are the common symptoms of OBDII code B1009 in an Infiniti?
Common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the airbag deployment system.
3. What can cause OBDII code B1009 to trigger in an Infiniti?
Code B1009 can be triggered by a malfunction in the Diagnosis Sensor Unit itself, wiring issues, or problems with the airbag system components.
4. How can I diagnose OBDII code B1009 in my Infiniti?
Diagnosing code B1009 typically involves using a professional OBDII scanner to retrieve the specific fault code and then inspecting the Diagnosis Sensor Unit and related components for any visible damage or issues.
5. Can I drive my Infiniti with OBDII code B1009?
It is not recommended to drive your Infiniti with an active B1009 code, as it indicates a potential problem with the airbag system, which is crucial for your safety in case of a collision.
6. How can I repair OBDII code B1009 in my Infiniti?
Repairing code B1009 may involve replacing the Diagnosis Sensor Unit, repairing any damaged wiring, or addressing issues with other components in the airbag system as necessary.
7. Is it safe to reset OBDII code B1009 in my Infiniti without fixing the issue?
Resetting the code without addressing the underlying problem is not recommended, as the airbag system may still be compromised and fail to deploy properly in an emergency.
8. Can I fix OBDII code B1009 in my Infiniti myself?
While some DIY enthusiasts may attempt to address B1009 by replacing the Diagnosis Sensor Unit or checking for wiring issues, it is recommended to seek professional help for proper diagnosis and repair.
9. How much does it cost to repair OBDII code B1009 in an Infiniti?
The cost of repairing code B1009 can vary depending on the specific issue causing the fault, the labor charges, and the price of any replacement parts needed.
10. How often does OBDII code B1009 occur in Infiniti vehicles?
Code B1009 related to the Diagnosis Sensor Unit can occur sporadically in Infiniti vehicles and is more common in older models or those with high mileage.
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