The OBD code B279A indicates a fault in the Certification ECU (Smart Key ECU Assembly) system.
Symptoms include the Engine Light being ON.
Causes may include a faulty Certification ECU, open/shorted harness, poor electrical connection, or a faulty Engine Control Module (ECM).
This issue should be addressed promptly.
A possible fix is to inspect and repair any damaged wiring or connectors related to the Certification ECU system.
| 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 b279a OBD Code
The vehicle displays a warning light indicating a communication error with the steering angle sensor.
- Symptoms: Service Engine Soon Warning Light ON.
- Possible nostart condition.
- Intermittent starting issues.
- Engine stalling while driving.
- Engine running rough.
- Engine misfire.
- Difficulty shifting gears.
Causes of the b279a OBD Code
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Possible triggers for fault code B279A include issues with the steering column control module.
- B279A can be caused by a faulty Certification ECU (Smart Key ECU Assembly).
- A Certification ECU harness that is open or shorted.
- A Certification ECU circuit with poor electrical connection.
- A faulty Engine Control Module (ECM).
Fixing Error Code b279a Step By Step
To address fault code B279A, inspect and repair the steering column control module as needed.
- To fix OBDII code B279A, first, review the possible causes related to this code.
- Visually inspect the wiring harness and connectors associated with 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 with the wiring and connectors, proceed to test the affected module for proper operation.
- Depending on the results of the module test, consider reprogramming or replacing the module as necessary to resolve the B279A fault code.
Cost Of Fixing b279a Fault Code
Diagnosing and repairing fault code B279A may involve inspecting and potentially replacing the steering column control module.
The cost to diagnose and fix OBD code B279A typically ranges from $75 to $150, with an estimated repair time of 1. 0 hour.
Costs depend on labor rates, shop fees, and the complexity of the repair.
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Details of the b279a OBD Code
B279A code indicates a malfunction in the immobilizer system on a vehicle.
OBD code B279A means Invalid Configuration Data Received from HandsFree Control Module.
This code is triggered by the Body Control Module (BCM) when it detects that the configuration data received from the HandsFree Control Module is invalid.
The HandsFree Control Module is typically responsible for functions such as Bluetooth connectivity, voice commands, and handsfree calling in the vehicle.
When the BCM receives incorrect or invalid data from this module, it sets code B279A to indicate a problem with the handsfree system configuration.
Mechanic’s Tech Notes
Code B279A indicates a malfunction in the immobilizer system, possibly due to a faulty key or module.
OBDII code B279A typically indicates a problem with the transmission control module (TCM).
To diagnose this, you can use a multimeter to check the TCM’s power and ground connections for proper voltage levels.
Additionally, a scan tool can be used to confirm if the TCM is communicating over the Controller Area Network (CAN) network.
If the TCM is unresponsive, reprogramming or reflashing it may be necessary.
Visually inspect the wiring harness and connectors for any damage, and ensure that connector pins are not broken, bent, pushed out, or corroded.
This thorough inspection can help pinpoint the root cause of the issue.
FAQ
OBD code B279A indicates a fault with the Certification ECU (Smart Key ECU Assembly) or related wiring. Check and repair wiring and connectors.
Common symptoms of OBD code B279A include Engine Light ON. Causes may be a faulty Certification ECU or ECM. Fix: Inspect wiring harness and connectors for damage or corrosion.
Diagnose OBD code B279A by checking Certification ECU and harness for faults. Inspect wiring for damage or poor connections. Repair as needed.
Wrap Up
If your vehicle displays OBD code b279a, you may experience issues with the steering angle sensor, such as incorrect steering wheel position readings or stability control malfunctions.
This code commonly indicates a fault within the steering angle sensor circuit, possibly caused by damaged wiring, a faulty sensor, or poor connections.
To address OBD code b279a, start by inspecting the wiring harness for any visible damage or loose connections.
Test the steering angle sensor and its connectors for proper functionality.
Replace the sensor if necessary and ensure all connections are secure to resolve the issue effectively.
