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B0105 Lexus Code - Short In P Squib Circuit

- Code Popularity: 2,690 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B0105 Lexus?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Front Passenger Airbag Assembly (P Squib)
  • Front Passenger Airbag Assembly (P Squib) harness is open or shorted
  • Front Passenger Airbag Assembly (P Squib) circuit poor electrical connection
  • Faulty Passenger Airbag Manual On–Off Switch
  • Faulty Airbag Sensor Assembly
⚠ Does your Lexus have Safety Recalls? → Check here

How to Fix the DTC B0105 Lexus?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0105 Lexus code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Air Bag Warning Light ON

Code B0105 Lexus Description

The P squib circuit consists of the airbag sensor assembly, passenger airbag manual on–off switch and front passenger airbag assembly. The Air Bag Control Module monitors the P Squib. The Air Bag Control Module sets the OBDII code when the P Squib is not to factory specifications.

OBDII Code B0105 Lexus - Short In P Squib Circuit - AutoCodes.com
B0105 Lexus Code - Short In P Squib Circuit

Need More Information on the Code?

Need more information on how to fix the B0105 Lexus code? Get Access to Factory Service Manuals

Need Help with the Code?

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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.

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