B1145 Code - Right Side Curtain Air Bag Module Open
Quick Answer
In case of collision whose acceleration exceeds the specified level, the ignition materials are ignited by the electric ignition system. Common causes include Faulty Right Side Curtain Air Bag Module, Right Side Curtain Air Bag Module harness is open or shorted, Right Side Curtain 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
- B1145 indicates Right Side Curtain Air Bag Module Open.
- Common causes
- Common causes include Faulty Right Side Curtain Air Bag Module, Right Side Curtain Air Bag Module harness is open or shorted, Right Side Curtain 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 B1145 Description
The Right Side Curtain Air Bag Module mainly consists of air bag and inflator which inflates the air bag.
What are the Possible Causes of the DTC B1145?
- Faulty Right Side Curtain Air Bag Module
- Right Side Curtain Air Bag Module harness is open or shorted
- Right Side Curtain Air Bag Module circuit poor electrical connection
How to Fix the DTC B1145?
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 B1145 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
- B1145 Infiniti — Right Side Curtain Air Bag Module Open
- B1145 Lexus — Door Side Airbag Sensor Malfunction
- B1145 Nissan — Right Side Curtain Air Bag Module Open
- B1145 Scion — Door Side Airbag Sensor Malfunction
- B1145 Toyota — Door Side Airbag Sensor Malfunction
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 B1145 Code
1. What does the OBDII code B1145 mean?
The code B1145 indicates an open circuit in the right-side curtain airbag module, which prevents proper communication or deployment.
2. What are the common symptoms of the B1145 code?
Symptoms include an illuminated airbag warning light on the dashboard, a stored trouble code, and potential malfunction of the right-side curtain airbag during a collision.
3. What causes the B1145 code to appear?
Common causes include damaged wiring, loose or corroded electrical connections, a faulty right-side curtain airbag module, or a defective airbag control module.
4. Can I drive my car with the B1145 code?
While the car may still be drivable, the right-side curtain airbag may not deploy during an accident, posing a safety risk.
5. How is the B1145 code diagnosed?
A technician will scan the vehicle with an OBDII scanner, visually inspect the wiring and connectors for damage, and test the airbag module's resistance to confirm the fault.
6. How can I fix the B1145 code?
Repairs may involve replacing damaged wires, cleaning or reconnecting loose connectors, or replacing the right-side curtain airbag module if it is faulty.
7. How much does it cost to fix the B1145 code?
Repair costs vary depending on the issue but typically range from $150 to $600, with airbag module replacement being on the higher end.
8. Can resetting the airbag system clear the B1145 code?
Resetting the system might temporarily clear the code, but the underlying issue must be repaired to prevent the code from returning.
9. Is the B1145 code related to a recall?
In some cases, this code could be associated with a manufacturer recall. Check with your vehicle’s manufacturer or dealership for any applicable recalls.
10. What tools are needed to fix a B1145 code?
A diagnostic scanner, multimeter, and basic hand tools are typically required to diagnose and repair this issue properly.
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