B0105 LEXUS - Short In P Squib Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

B0105 Lexus Possible 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

B0105 Lexus Possible Symptoms

  • Air Bag Warning Light ON

B0105 Lexus Meaning

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 - Engine-Codes.com

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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