B1045 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
- B1045 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 B1045 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 B1045 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 B1045 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 B1045 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 B1045 Infiniti Code
1. What are the common symptoms of OBDII code B1045 in an Infiniti related to the Diagnosis Sensor Unit?
- Common symptoms include issues with the airbag system, such as the airbag warning light staying illuminated on the dashboard.
2. What are the possible causes of OBDII code B1045 in an Infiniti?
- The most common cause of this code is a malfunction or failure of the Diagnosis Sensor Unit in the airbag system.
3. How can I diagnose the Diagnosis Sensor Unit issue causing OBDII code B1045 in my Infiniti?
- Diagnosing the Diagnosis Sensor Unit requires specialized diagnostic tools that can communicate with the airbag system's control module to retrieve specific fault codes and data.
4. Can I repair the Diagnosis Sensor Unit issue myself to clear OBDII code B1045 in my Infiniti?
- Repairing the Diagnosis Sensor Unit issue is typically best left to professional technicians due to the complexity and safety considerations of working on the airbag system.
5. What are the potential risks of ignoring OBDII code B1045 related to the Diagnosis Sensor Unit in my Infiniti?
- Ignoring this code can lead to the airbag system not functioning properly in the event of a collision, potentially compromising passenger safety.
6. Are there any safety precautions I should take if I suspect an issue with the Diagnosis Sensor Unit causing OBDII code B1045 in my Infiniti?
- It is crucial to avoid tampering with the airbag system and seek professional assistance to prevent accidental deployment or other safety hazards.
7. How much does it typically cost to repair the Diagnosis Sensor Unit issue triggering OBDII code B1045 in an Infiniti?
- Repair costs can vary depending on the extent of the issue and whether any components need to be replaced, but it is advisable to budget for a potentially significant repair expense.
8. Can a faulty Diagnosis Sensor Unit causing OBDII code B1045 in an Infiniti be reset or cleared without addressing the underlying problem?
- Clearing the code without addressing the root cause will not fix the issue, and the code is likely to reappear until the Diagnosis Sensor Unit problem is resolved.
9. How long does it usually take to repair the Diagnosis Sensor Unit issue associated with OBDII code B1045 in an Infiniti?
- The repair time can vary depending on the availability of parts, the complexity of the repair, and the technician's experience, so it is best to consult with a professional for an accurate estimate.
10. Is it safe to drive my Infiniti with OBDII code B1045 related to the Diagnosis Sensor Unit until I can get it repaired?
- It is not recommended to drive the vehicle with this code present, as it indicates a potential safety issue with the airbag system that could compromise passenger safety in the event of a collision.
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