Engine-Codes - Generic - B0012

B0012 Code - Driver Steering Wheel Air Bag Deployment Loop Stage 1

- Code Popularity: 18,162 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the Code B0012?

  • Faulty Steering Wheel Air Bag
  • Faulty Steering Wheel Air Bag Coil
  • Steering Wheel Air Bag harness is open or shorted
  • Steering Wheel Air Bag circuit poor electrical connection
  • Faulty Sensing and Diagnostic Module (SDM)

How to Fix the B0012 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.

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Code B0012 Tech Notes

B0012:01 Driver Frontal Deployment Loop Stage 1 Short to Battery
B0012:02 Driver Frontal Deployment Loop Stage 1 Short to Ground
B0012:04 Driver Frontal Deployment Loop Stage 1 Open Circuit
B0012:0D Driver Frontal Deployment Loop Stage 1 High Resistance
B0012:0E Driver Frontal Deployment Loop Stage 1 Low Resistance

What is the Cost to Diagnose the Code B0012?

Labor: 1.0

The cost to diagnose the B0012 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 Code B0012 Possible Symptoms?

  • Air Bag Warning Light ON

What Does the B0012 Code Mean?

During a frontal crash of sufficient force, the inflatable restraint Sensing and Diagnostic Module (SDM) will allow current to flow through the deployment loop in order to deploy the steering wheel air bag. The SDM performs continuous diagnostic tests on the deployment loops to check for proper circuit continuity and for shorts to ground or voltage. There are two shorting bars used within the steering wheel air bag coil connector which will short together both steering wheel air bag stage 1 high control circuit and steering wheel air bag stage 1 low control circuit and both steering wheel air bag stage 2 high control circuit and steering wheel air bag stage 2 low control circuit when the connector is disconnected. This will help to prevent unwanted deployment of the steering wheel air bag during servicing.

B0012 Code - Driver Steering Wheel Air Bag Deployment Loop Stage 1

Need more Information on the B0012 Code?

Need more information on how to fix the B0012 code? Get Access to Factory Service Manuals

Code B0012 Information for Specific Makes

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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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