B1875 Lexus Code - Short in Passenger Side Front Seat Cushion Squib Circuit
Quick Answer
The Front Seat Cushion Squib Right (RH) Circuit consists of the Center Airbag Sensor Assembly and the Front Seat Airbag Sub-Assembly. Common causes include Faulty Front Seat Airbag Sub-Assembly (Front Seat Cushion Squib Right), Front Seat Airbag Sub-Assembly harness is open or shorted, Front Seat Airbag Sub-Assembly 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
- B1875 Lexus indicates Short in Passenger Side Front Seat Cushion Squib Circuit.
- Common causes
- Common causes include Faulty Front Seat Airbag Sub-Assembly (Front Seat Cushion Squib Right), Front Seat Airbag Sub-Assembly harness is open or shorted, Front Seat Airbag Sub-Assembly 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 B1875 Lexus Description
What are the Possible Causes of the DTC B1875 Lexus?
- Faulty Front Seat Airbag Sub-Assembly (Front Seat Cushion Squib Right)
- Front Seat Airbag Sub-Assembly harness is open or shorted
- Front Seat Airbag Sub-Assembly circuit poor electrical connection
- Faulty Center Airbag Sensor Assembly
How to Fix the DTC B1875 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 B1875 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 B1875 Lexus Code
1. What are common symptoms of OBDII code B1875 in a Lexus related to a short in the passenger side front seat cushion squib circuit?
- Common symptoms include an illuminated airbag warning light on the dashboard and potential non-deployment of the passenger side airbag during an accident.
2. What are possible causes of OBDII code B1875 in a Lexus indicating a short in the passenger side front seat cushion squib circuit?
- Potential causes may include damaged wiring, a faulty seat cushion squib (airbag) module, or a poor connection in the circuit.
3. How can I diagnose the source of the short in the passenger side front seat cushion squib circuit in my Lexus triggering OBDII code B1875?
- Diagnosis typically involves using a scan tool to retrieve the specific fault code, visually inspecting the wiring and connectors for damage, and testing the seat cushion squib module for proper function.
4. Can I repair OBDII code B1875 related to a short in the passenger side front seat cushion squib circuit in my Lexus myself?
- While some basic troubleshooting steps can be performed by DIY enthusiasts, in-depth repairs involving airbag systems are best left to trained professionals due to safety concerns.
5. What precautions should I take when working on the passenger side front seat cushion squib circuit to address OBDII code B1875 in my Lexus?
- Before attempting any repairs, disconnect the vehicle's battery and wait for the appropriate amount of time to ensure the airbag system is safely deactivated to prevent accidental deployment.
6. Is it safe to drive my Lexus with OBDII code B1875 indicating a short in the passenger side front seat cushion squib circuit?
- It is not recommended to drive the vehicle with unresolved airbag issues, as the passenger side airbag may not deploy properly in the event of a collision, potentially compromising passenger safety.
7. How much does it typically cost to repair OBDII code B1875 related to a short in the passenger side front seat cushion squib circuit in a Lexus?
- Repair costs can vary depending on the specific cause of the issue, but expect to budget a few hundred to a thousand dollars for parts and labor at a dealership or reputable repair shop.
8. Can resetting the OBDII code B1875 in my Lexus temporarily fix the issue related to the short in the passenger side front seat cushion squib circuit?
- Resetting the fault code may temporarily clear the warning light, but the underlying issue causing the short in the circuit will likely persist and should be addressed to ensure the airbag system functions properly.
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