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.
DTC B0012 01 Driver Frontal Deployment Loop Stage 1 Short to Battery
DTC B0012 02 Driver Frontal Deployment Loop Stage 1 Short to Ground
DTC B0012 04 Driver Frontal Deployment Loop Stage 1 Open Circuit
DTC B0012 0D Driver Frontal Deployment Loop Stage 1 Resistance Above Threshold
DTC B0012 0E Driver Frontal Deployment Loop Stage 1 Resistance Below Threshold
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.
If a malfunction is detected, a Diagnostic Trouble Code (DTC) will be stored in non-volatile memory. 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 module. 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 2 shorting bars used within each connector which will short together both steering wheel module stage 1 high circuit and steering wheel module stage 1 low circuit and both steering wheel module stage 2 high circuit and steering wheel module stage 2 low circuit when the connector is disconnected. This will help to prevent unwanted deployment of the inflator module during servicing.
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