B1186 Lexus Code - Open In Passenger Side Air Bag Second Stage Squib Circuit
Quick Answer
The Passenger Side Air Bag Second Stage Squib Circuit consists of the Air Bag Sensor Assembly and Passenger Side Air Bag Module. Common causes include Faulty Passenger Side Air Bag Second Stage Squib, Passenger Side Air Bag Second Stage Squib harness is open or shorted, Passenger Side Air Bag Second Stage Squib 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
- B1186 Lexus indicates Open In Passenger Side Air Bag Second Stage Squib Circuit.
- Common causes
- Common causes include Faulty Passenger Side Air Bag Second Stage Squib, Passenger Side Air Bag Second Stage Squib harness is open or shorted, Passenger Side Air Bag Second Stage Squib 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 B1186 Lexus Description
What are the Possible Causes of the DTC B1186 Lexus?
- Faulty Passenger Side Air Bag Second Stage Squib
- Passenger Side Air Bag Second Stage Squib harness is open or shorted
- Passenger Side Air Bag Second Stage Squib circuit poor electrical connection
- Faulty Air Bag Sensor Assembly
How to Fix the DTC B1186 Lexus?
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 B1186 Lexus 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 B1186 Lexus Code
1. What are common symptoms of OBDII code B1186 in a Lexus related to the passenger side airbag circuit?
- Common symptoms include the airbag warning light staying on, the airbag not deploying in an accident, and diagnostic trouble codes related to the passenger side airbag circuit.
2. What are the possible causes of OBDII code B1186 in a Lexus for an open circuit in the passenger side airbag second stage squib?
- The code may be triggered by a loose or disconnected wiring connection, a faulty airbag squib (igniter), a blown fuse, or a malfunctioning airbag control module.
3. How can I diagnose and repair an open circuit in the passenger side airbag squib circuit in a Lexus?
- To diagnose the issue, use an OBDII scanner to retrieve the specific trouble code, then inspect the wiring connections, test the airbag squib for continuity, check the fuse, and verify the airbag control module functionality. Repair any faults found.
4. Is it safe to drive a Lexus with OBDII code B1186 related to an open circuit in the passenger side airbag squib circuit?
- It is not recommended to drive the vehicle with this issue, as the passenger side airbag may not deploy in the event of a collision, potentially putting the occupant at risk.
5. Can I reset the OBDII code B1186 in a Lexus after repairing the open circuit in the passenger side airbag squib circuit?
- Yes, after repairing the issue causing the code, you can use an OBDII scanner to clear the code and reset the airbag warning light.
6. Do I need special tools to repair OBDII code B1186 in a Lexus for an open circuit in the passenger side airbag squib circuit?
- Basic tools such as a multimeter, wire connectors, and a soldering iron may be needed to diagnose and repair the open circuit in the passenger side airbag squib circuit.
7. How much does it cost to repair OBDII code B1186 in a Lexus related to an open circuit in the passenger side airbag squib circuit?
- The cost of repair can vary depending on the specific issue causing the open circuit, the labor rates of the repair shop, and the cost of any replacement parts needed such as an airbag squib or wiring harness.
8. Are there any recalls or service bulletins related to OBDII code B1186 in Lexus vehicles for an open circuit in the passenger side airbag squib circuit?
- It is recommended to check with a Lexus dealership or the manufacturer's website to see if there are any recalls or service bulletins related to this specific OBDII code in your vehicle.
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