B1206 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
- B1206 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 B1206 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 B1206?
- Faulty Diagnosis Sensor Unit
- Diagnosis Sensor Unit harness is open or shorted
- Diagnosis Sensor Unit circuit poor electrical connection
How to Fix the DTC B1206?
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 B1206 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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Get the B1206 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B1206 Ford — EIC Switch Assembly Circuit Open
- B1206 Infiniti — Diagnosis Sensor Unit
- B1206 Lexus — Power Window Master Switch Communication Stop
- B1206 Lincoln — EIC Switch Assembly Circuit Open
- B1206 Mercury — EIC Switch Assembly Circuit Open
- B1206 Nissan — Diagnosis Sensor Unit
- B1206 Scion — Power Window Master Switch Communication Stop
- B1206 Toyota — Power Window Master Switch Communication Stop
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 B1206 Code
1. What are the common symptoms of OBDII code B1206 (Diagnosis Sensor Unit)?
- Common symptoms include the airbag warning light staying illuminated on the dashboard and potential issues with the vehicle's airbag system.
2. What can cause OBDII code B1206 to trigger?
- The most common cause of B1206 is a malfunction or failure of the diagnosis sensor unit within the airbag system.
3. How can I diagnose OBDII code B1206?
- Diagnosis of B1206 typically involves using a diagnostic scanner to retrieve the specific trouble code and then inspecting the diagnosis sensor unit and related components for any visible damage or issues.
4. Are there any DIY repair tips for fixing OBDII code B1206?
- DIY repair for B1206 is not recommended due to the complexity and safety implications of working on the airbag system. It is best to seek professional help to diagnose and repair this issue.
5. Can OBDII code B1206 be reset without fixing the underlying issue?
- While you can clear the code temporarily, the underlying issue causing B1206 will persist, and the code is likely to return until the problem is properly diagnosed and repaired.
6. Is it safe to drive with OBDII code B1206 active?
- It is not recommended to drive the vehicle with an active B1206 code, as it signifies a potential problem with the airbag system, which is crucial for occupant safety in the event of a collision.
7. How much does it typically cost to repair OBDII code B1206?
- The cost of repairing B1206 can vary depending on the extent of the issue and the specific components that need to be repaired or replaced. It is advisable to get a professional diagnosis to determine the exact cost.
8. Can a faulty diagnosis sensor unit be repaired, or does it need to be replaced?
- In most cases, a faulty diagnosis sensor unit will need to be replaced rather than repaired. This ensures the proper functioning of the airbag system and maintains safety standards.
9. Are there any recalls or technical service bulletins related to OBDII code B1206?
- It is advisable to check with the vehicle manufacturer or authorized dealerships for any recalls or technical service bulletins related to OBDII code B1206, as they may offer solutions or repairs covered under warranty.
10. How long does it take to repair OBDII code B1206?
- The repair time for B1206 can vary depending on the specific issue and the availability of parts. It is recommended to consult with a professional technician to get an accurate estimate of the repair time.
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