B1004 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
- B1004 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 B1004 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 B1004 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 B1004 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 B1004 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 B1004 Infiniti Code
1. What are common symptoms of OBDII code B1004 in an Infiniti related to the Diagnosis Sensor Unit?
- Common symptoms include the malfunction indicator light (MIL) illuminating, issues with airbag deployment system, and potential loss of communication with the airbag control module.
2. What are possible causes of OBDII code B1004 in an Infiniti related to the Diagnosis Sensor Unit?
- Possible causes include a faulty Diagnosis Sensor Unit, damaged wiring or connectors, or issues with the airbag control module.
3. How can I diagnose OBDII code B1004 in an Infiniti related to the Diagnosis Sensor Unit?
- Diagnosis typically involves using a professional OBDII scanner to retrieve the specific error code and further inspecting the Diagnosis Sensor Unit, wiring, and connectors for any visible damage.
4. Can I repair OBDII code B1004 in an Infiniti related to the Diagnosis Sensor Unit myself?
- Repairing this code may require professional expertise due to the complex nature of the airbag system. However, you can inspect wiring and connectors for visible damage before seeking professional help.
5. Is it safe to drive with OBDII code B1004 in an Infiniti related to the Diagnosis Sensor Unit?
- It is not recommended to drive with this code present, as it indicates a potential issue with the airbag system that could affect its functionality in case of an accident.
6. How much does it cost to fix OBDII code B1004 in an Infiniti related to the Diagnosis Sensor Unit?
- Repair costs can vary depending on the exact cause of the issue, but it is advisable to budget for diagnostic fees, parts replacement, and labor costs.
7. Can resetting the OBDII system clear code B1004 in an Infiniti related to the Diagnosis Sensor Unit?
- Resetting the system may temporarily clear the code, but it is crucial to address the underlying issue causing the code to prevent it from reoccurring.
8. Are there any recalls related to OBDII code B1004 in Infiniti vehicles?
- It is recommended to check with the manufacturer or authorized dealerships for any recalls related to this specific OBDII code and the Diagnosis Sensor Unit in Infiniti vehicles.
9. How long does it take to repair OBDII code B1004 in an Infiniti related to the Diagnosis Sensor Unit?
- Repair time can vary depending on the exact cause of the issue and the availability of parts. It is advisable to consult with a professional mechanic for a more accurate estimate.
10. Will OBDII code B1004 in an Infiniti related to the Diagnosis Sensor Unit affect the vehicle's overall performance?
- While this code may not directly impact the vehicle's performance, it signifies a potential safety issue with the airbag system that should be addressed promptly.
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