The OBD code B2A0C indicates a fault with the Data Communication Module (DCM) in the vehicle.
Symptoms include the Engine Light being ON.
This issue can be caused by a faulty DCM, open or shorted DCM harness, or poor electrical connections.
It is important to address this problem promptly to prevent further communication issues within the vehicle.
To fix this, inspect the DCM wiring harness and connectors for any damage or poor connections.
Repair Importance Level | 10.0 (Out of 10) |
Estimated Repair Time | Approximately 1.0 hour |
Repair Difficulty Level | 10.0 (Out of 10) |
Symptoms of the b2a0c OBD Code
The vehicle displays a warning light on the dashboard indicating fault code B2A0C.
- Symptoms: Engine Light ON.
- Rough idle may be experienced.
- Loss of power during acceleration.
- Engine may stall unexpectedly.
- Difficulty starting the vehicle.
Causes of the b2a0c OBD Code
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Possible triggers for fault code B2A0C include faulty wheel speed sensor or damaged wiring.
- B2A0C can be caused by a faulty Data Communication Module (DCM).
- An open or shorted Data Communication Module harness.
- A poor electrical connection in the Data Communication Module circuit.
Fixing Error Code b2a0c Step By Step
Address the issue by inspecting the wiring harness for any damage or loose connections.
- To fix OBDII code B2A0C, first, review the possible causes related to this code.
- Visually examine the wiring harness and connectors associated with the affected component.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- If no visible issues are found, perform a thorough diagnostic scan to identify the specific cause of the code.
- Depending on the findings, replace the faulty sensor, module, or component.
- Clear the fault code from the vehicle’s computer memory using a diagnostic scanner.
- Test drive the vehicle to ensure the code does not return, indicating a successful repair.
Cost Of Fixing b2a0c Fault Code
The repair for fault code B2A0C may involve replacing the steering angle sensor.
The cost to diagnose and fix OBD code B2A0C 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. Factors like shop rates and complexity can affect the final cost.
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Details of the b2a0c OBD Code
Fault code B2A0C relates to a fault in the rearview camera system.
OBD code B2A0C means that the rear differential control module has detected a malfunction in the rear differential locking solenoid circuit.
This code is triggered by the rear differential control module when it detects an electrical fault in the circuit that controls the locking and unlocking of the rear differential.
The rear differential locking solenoid is responsible for engaging and disengaging the rear differential lock, which is used to improve traction in offroad or low traction situations.
When this solenoid circuit malfunctions, it can affect the vehicle’s ability to transfer power to the rear wheels effectively.
Mechanic’s Tech Notes
This code indicates a fault in the rear differential control module on BMW vehicles.
To diagnose and fix OBDII code B2A0C, start by checking the Transmission Control Module (TCM) power and ground using a multimeter.
Verify TCM communication over the Controller Area Network (CAN) using 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 check connector pins for signs of being broken, bent, pushed out, or corroded.
This code typically indicates a communication issue between modules, so ensuring proper power, ground, and communication signals are crucial for a successful repair.
FAQ
OBD code B2A0C indicates a fault with the Data Communication Module (DCM). Check DCM, wiring harness, and connectors for damage or poor connection.
Common symptoms of OBD code B2A0C include Engine Light ON. Possible causes are a faulty Data Communication Module (DCM) or related wiring issues. Inspect and repair as needed.
Diagnose OBD code B2A0C by checking for a faulty Data Communication Module (DCM), open/shorted harness, or poor electrical connection. Inspect wiring and connectors for damage.

Wrap Up
If your vehicle is displaying OBDII code b2a0c, you may experience issues with the transmission fluid temperature sensor circuit.
This could be caused by a faulty transmission fluid temperature sensor, damaged wiring, or poor connections in the sensor circuit.
To address OBDII code b2a0c, start by inspecting the transmission fluid temperature sensor and its wiring harness for any signs of damage or corrosion.
Test the sensor’s resistance and ensure proper connection at the sensor and the transmission control module.
Replace the sensor if necessary and repair any wiring issues to resolve the fault.