B1066 Code - Assist Air Bag Module Short
Quick Answer
In the case of a frontal collision whose acceleration exceeds the specified level, the ignition materials are ignited by the electric ignition system. Common causes include Faulty Assist Air Bag Module, Assist Air Bag Module harness is open or shorted, Assist Air Bag Module 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
- B1066 indicates Assist Air Bag Module Short.
- Common causes
- Common causes include Faulty Assist Air Bag Module, Assist Air Bag Module harness is open or shorted, Assist Air Bag Module 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 B1066 Description
The front passenger air bag module mainly consists of air bag and inflator which inflates the air bag.
What are the Possible Causes of the DTC B1066?
- Faulty Assist Air Bag Module
- Assist Air Bag Module harness is open or shorted
- Assist Air Bag Module circuit poor electrical connection
- Faulty Diagnosis Sensor Unit
How to Fix the DTC B1066?
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 B1066 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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Information for Specific Makes
- B1066 Infiniti — Assist Air Bag Module Short
- B1066 Nissan — Assist Air Bag Module Short
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 B1066 Code
1. What are the common symptoms of OBDII code B1066, Assist Air Bag Module Short?
- Common symptoms include the airbag warning light staying on, faulty airbag deployment, and potential loss of airbag functionality.
2. What are the possible causes of OBDII code B1066?
- The code B1066 can be triggered by a short circuit in the wiring harness, a malfunctioning airbag module, or a faulty connection in the airbag system.
3. How can I diagnose the cause of OBDII code B1066?
- A thorough inspection of the airbag system wiring, connectors, and components is necessary. It’s recommended to use a diagnostic scanner capable of reading and interpreting the specific code to pinpoint the issue.
4. Can I still drive my vehicle with OBDII code B1066 present?
- It is not recommended to drive a vehicle with an active airbag fault code like B1066, as it poses a safety risk in the event of a collision. Address the issue promptly to ensure the airbag system functions correctly.
5. How can I repair OBDII code B1066, Assist Air Bag Module Short?
- Repairing this code typically involves fixing the short circuit in the wiring, replacing the faulty airbag module, or repairing any damaged connections in the airbag system.
6. Do I need specialized tools to fix OBDII code B1066?
- While basic hand tools may be sufficient for some repairs, diagnosing and fixing OBDII code B1066 may require specialized diagnostic tools and equipment to accurately identify and address the issue.
7. Will resetting the OBDII code B1066 turn off the airbag warning light?
- Resetting the code may temporarily turn off the warning light, but if the underlying issue is not fixed, the code is likely to reappear, and the warning light will come back on.
8. Is it safe to attempt DIY repairs for OBDII code B1066?
- Due to the critical safety implications associated with the airbag system, it is recommended to have repairs for OBDII code B1066 performed by a qualified automotive technician or at a certified repair facility.
9. Can extreme temperatures or environmental conditions trigger OBDII code B1066?
- While extreme temperatures or environmental conditions can potentially impact the airbag system, the code B1066 is more commonly triggered by electrical faults within the system rather than external factors.
10. How long does it typically take to repair OBDII code B1066?
- The repair time for OBDII code B1066 can vary depending on the exact cause of the issue and the extent of repairs needed. In general, it may take a few hours to a day to diagnose and fix the problem.
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