B1203 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
- B1203 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 B1203 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 B1203 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 B1203 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 B1203 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 B1203 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 B1203 Infiniti Code
1. What is OBDII code B1203 in an Infiniti?
- OBDII code B1203 in an Infiniti refers to a fault in the Diagnosis Sensor Unit.
2. What are the common symptoms of OBDII code B1203 in an Infiniti?
- Common symptoms of OBDII code B1203 in an Infiniti may include issues with airbag functionality, illuminated airbag warning light, and potential loss of airbag protection.
3. What are the possible causes of OBDII code B1203 in an Infiniti?
- The possible causes of OBDII code B1203 in an Infiniti can include a faulty Diagnosis Sensor Unit, wiring issues, or a malfunction in the airbag system.
4. How can I diagnose OBDII code B1203 in my Infiniti?
- Diagnosis of OBDII code B1203 in an Infiniti typically involves using a diagnostic scanner to retrieve the specific fault code and then inspecting the Diagnosis Sensor Unit and related components for any visible damage or wiring issues.
5. Can OBDII code B1203 in an Infiniti be repaired at home?
- Repairing OBDII code B1203 in an Infiniti may require specialized tools and knowledge, so it is recommended to seek assistance from a professional mechanic or dealership to properly diagnose and repair the issue.
6. Is it safe to drive with OBDII code B1203 present in an Infiniti?
- It is not recommended to drive with OBDII code B1203 present in an Infiniti, as it may affect the proper functioning of the airbag system and compromise safety in the event of a collision.
7. How much does it typically cost to repair OBDII code B1203 in an Infiniti?
- The cost of repairing OBDII code B1203 in an Infiniti can vary depending on the specific issue and the labor rates of the repair facility. It is advisable to get a few quotes from different mechanics or dealerships.
8. Can resetting the OBDII system clear the B1203 code in an Infiniti?
- Resetting the OBDII system may temporarily clear the B1203 code in an Infiniti, but if the underlying issue with the Diagnosis Sensor Unit is not addressed, the code is likely to reappear.
9. Are there any recalls related to OBDII code B1203 in certain Infiniti models?
- It is advisable to check with the manufacturer or visit the National Highway Traffic Safety Administration (NHTSA) website to see if there are any recalls related to OBDII code B1203 in your specific Infiniti model.
10. How long does it take to repair OBDII code B1203 in an Infiniti?
- The repair time for OBDII code B1203 in an Infiniti can vary depending on the extent of the issue and the availability of parts. It is recommended to consult with a professional mechanic for a more accurate estimate.
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