B1187 Lexus Code - Short To Ground In Passenger Side Air Bag Module 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
- B1187 Lexus indicates Short To Ground In Passenger Side Air Bag Module 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 B1187 Lexus Description
What are the Possible Causes of the DTC B1187 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 B1187 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 B1187 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.
Need more information about the B1187 Lexus code?
Need more information on how to fix the B1187 Lexus code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1187 Lexus code diagnosed by a professional: Find a repair shop in your area
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 B1187 Lexus Code
1. What are common symptoms of OBDII code B1187 in a Lexus related to a short to ground in the passenger side air bag module second stage squib circuit?
The common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the passenger side airbag deployment system.
2. What are some possible causes of the B1187 OBDII code in a Lexus indicating a short to ground in the air bag circuit?
Possible causes may include damaged wiring or connectors in the passenger side air bag system, a faulty air bag module, or a short circuit in the second stage squib circuit.
3. How can I diagnose the B1187 OBDII code in my Lexus related to a short to ground in the passenger side air bag circuit?
Diagnosing this issue typically involves using a diagnostic scanner to read the fault code, inspecting the wiring and connectors for damage, and testing the components in the passenger side air bag system.
4. Is it safe to drive my Lexus with the B1187 OBDII code indicating a short to ground in the passenger side air bag circuit?
It is not recommended to drive the vehicle with this fault code present, as it may affect the proper function of the passenger side airbag in the event of a collision.
5. Can I repair the short to ground issue in the passenger side air bag circuit myself?
Repairing this issue may require advanced knowledge and special tools, so it is recommended to seek assistance from a professional mechanic or dealership to properly diagnose and repair the problem.
6. How much does it typically cost to repair the B1187 OBDII code related to a short to ground in the passenger side air bag circuit in a Lexus?
The cost of repairs can vary depending on the exact cause of the issue, but it may involve replacing damaged wiring, connectors, or components in the air bag system, which can range from a few hundred to a few thousand dollars.
7. Are there any safety precautions I should take if I suspect a short to ground in the passenger side air bag circuit of my Lexus?
It is important to avoid tampering with the air bag system, as it contains explosive devices that can deploy accidentally and cause injury. Always consult a professional for diagnosis and repair of airbag-related issues.
8. Can the B1187 OBDII code be triggered by other factors besides a short to ground in the passenger side air bag circuit?
While the code specifically indicates a short to ground in the air bag system, other related faults or malfunctions in the system can sometimes trigger this code as well.
9. How long does it typically take to repair the B1187 OBDII code indicating a short to ground in the passenger side air bag circuit?
The repair time can vary depending on the exact cause of the issue and the availability of parts, but it may take a few hours to a full day to diagnose and repair the problem.
10. Is it important to address the B1187 OBDII code indicating a short to ground in the passenger side air bag circuit promptly?
Yes, it is crucial to address this issue promptly to ensure the proper operation of the passenger side airbag system in the event of a collision and maintain the safety of the vehicle occupants.
Discuss the causes and fixes for B1187 Lexus OBDII Code
Code B1187 Lexus comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
