The OBD code B212D indicates a problem with the Run Relay circuit in the Occupant Classification Module (OCM).
Symptoms include the Engine Light being ON.
The issue is typically caused by a faulty Run Relay, open/shorted Run Relay harness, or poor electrical connection.
This is a moderate issue that can be fixed by inspecting and repairing the wiring harness and connectors related to the Run Relay circuit.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
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Symptoms of the b212d OBD Code
The vehicle displays a warning light indicating a fault with the occupant classification system.
- Symptoms: Service Engine Soon Warning Light ON.
- Possible loss of communication with the vehicle immobilizer control module.
- Difficulty starting the engine.
- Engine stalling while driving.
- Difficulty shifting gears in an automatic transmission vehicle.
Causes of the b212d OBD Code
Possible triggers for fault code B212D include issues with the occupant classification system.
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- B212D can be caused by a faulty Run Relay.
- A Run Relay harness that is open or shorted.
- A Run Relay circuit with poor electrical connection.
- A faulty Occupant Classification Module (OCM).
Fixing Error Code b212d Step By Step
To resolve fault code B212D, inspect and repair the driver’s side airbag module circuit.
- To fix OBDII code B212D, start by reviewing the possible causes mentioned above.
- Visually examine the wiring harness and connectors related to the code.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- If no issues are found during the visual inspection, proceed to check the specific circuit related to the code for continuity and proper voltage levels.
- Replace any faulty components or repair any wiring issues as necessary.
- Clear the fault code from the vehicle’s computer using a scan tool and test drive the vehicle to ensure the code does not return.
Cost Of Fixing b212d Fault Code
The repair for fault code B212D may involve replacing the occupant classification module in the vehicle.
The cost to diagnose and fix OBD code B212D depends on the estimated 1. 0hour repair time.
Labor rates usually range from $75 to $150 per hour, so the total cost could be between $75 and $150. Actual cost may vary based on shop rates and the complexity of the repair.
Details of the b212d OBD Code
Fault code B212D relates to a problem with the occupant classification system in the vehicle.
OBD code B212D means Ignition Run/Acc Circuit Open.
This code is triggered when the Body Control Module (BCM) detects an open circuit in the ignition run/acc circuit.
The ignition run/acc circuit is responsible for providing power to various components when the ignition is in the run or accessory position, such as the radio, power windows, and other accessories.
When this circuit is open, it can cause issues with starting the vehicle or operating accessories while the vehicle is running.
Mechanic’s Tech Notes
This fault code indicates a problem with the occupant classification system in the vehicle.
To diagnose and fix OBDII code B212D, start by checking the Transmission Control Module (TCM) power and ground using a multimeter.
Verify TCM communication over the Controller Area Network (CAN) network with a scan tool.
If the TCM does not respond, reprogramming or reflashing may be necessary.
Visually inspect the wiring harness and connectors for any damage, and ensure connector pins are not broken, bent, pushed out, or corroded.
This thorough inspection will help identify and address any issues causing the B212D fault code.
FAQ
OBD code B212D indicates a fault with the Run Relay circuit. Check for issues with the relay, wiring, or Occupant Classification Module. Inspect and repair as needed.
Common symptoms of OBD code B212D include Engine Light ON. Possible causes are faulty Run Relay, Run Relay harness issues, or faulty Occupant Classification Module (OCM).
Diagnose OBD code B212D by checking for a faulty Run Relay, open/shorted harness, or poor connection. Inspect wiring and connectors for damage or corrosion.
Wrap Up
If your vehicle is displaying OBD code b212d, you may experience issues with the steering angle sensor.
This could be caused by a faulty sensor, damaged wiring, or poor connections in the steering angle sensor circuit.
To address OBD code b212d, start by inspecting the wiring harness and connectors related to the steering angle sensor.
Look for any signs of damage, corrosion, or loose connections.
Test the sensor itself for proper operation and replace if necessary to resolve the steering angle sensor issue.
