Engine-Codes - Toyota - B0101 TOYOTA

B0101 TOYOTA Code - Open In D Squib Circuit

- Code Popularity: 28,892 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the B0101 TOYOTA Code?

  • Faulty Steering Wheel Pad (D Squib)
  • Steering Wheel Pad (D Squib) harness is open or shorted
  • Steering Wheel Pad (D Squib) circuit poor electrical connection
  • Faulty Spiral cable
  • Faulty Airbag Sensor Assembly

|How to Fix the B0101 TOYOTA Code?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|B0101 TOYOTA code tech notes

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|What is the cost to diagnose the B0101 TOYOTA code?

Labor: 1.0

The cost to diagnose the B0101 TOYOTA code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

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|What are B0101 TOYOTA code possible symptoms?

  • Air Bag Warning Light ON

|What Does the B0101 TOYOTA Code Mean?

The D squib circuit consists of the airbag sensor assembly, spiral cable and steering wheel pad. It causes the airbag to deploy when the airbag deployment conditions are satisfied. The Air Bag Control Module monitors the D Squib. The Air Bag Control Module sets the OBDII code when the D Squib is not to factory specifications.

Open In D Squib Circuit

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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.