The OBD code B105D indicates a problem with the Recirculation Door Actuator circuit in the A/C Heater Module.
Symptoms include the Engine Light being ON.
This issue is commonly caused by a Binding Recirculation Door or a Faulty Recirculation Door Actuator.
It is important to visually inspect the wiring harness and connectors for any damage and ensure proper electrical connections for a fix.
| 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 b105d OBD Code
The vehicle displays an airbag warning light on the dashboard with fault code B105D stored.
- Symptoms: Engine Light ON.
- Possible loss of communication with the vehicle’s body control module.
- Difficulty starting the vehicle.
- Erratic behavior of electrical components like power windows or door locks.
Causes of the b105d OBD Code
Possible triggers for fault code B105D include issues with the driver’s seat belt buckle switch.
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- B105D can be caused by a binding Recirculation Door.
- A faulty Recirculation Door Actuator.
- An open or shorted Recirculation Door Actuator harness.
- A poor electrical connection in the Recirculation Door Actuator circuit.
- A faulty A/C Heater Module.
Fixing Error Code b105d Step By Step
To address fault code B105D, inspect and repair the driver’s airbag module circuit as needed.
- To fix OBDII code B105D, first, review the possible causes related to this code.
- Visually examine 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 visible issues are found, consider resetting the module that triggered the code.
- Perform a software update if available.
- Replace the module if necessary.
Cost Of Fixing b105d Fault Code
Diagnosing and repairing fault code B105D may involve inspecting and potentially replacing the occupant classification module.
The cost to diagnose and fix OBD code B105D 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 b105d OBD Code
B105D code indicates a malfunction in the driver’s seatbelt buckle switch circuit.
OBD code B105D means Sunload Sensor Circuit Short to Ground.
This code is triggered by the Body Control Module (BCM) when it detects a short to ground in the circuit of the sunload sensor.
The sunload sensor is part of the HVAC system and is responsible for measuring the amount of sunlight entering the vehicle.
When a short to ground is detected in this circuit, it can affect the accuracy of the sensor’s readings and may lead to issues with the HVAC system’s performance.
Mechanic’s Tech Notes
Code B105D relates to a fault in the passenger seat belt buckle switch circuit.
OBDII code B105D typically indicates a problem with the transmission control module (TCM) power supply.
To diagnose, use a multimeter to check TCM power and ground connections for proper voltage levels.
Additionally, scan tools can be used to confirm TCM communication over the Controller Area Network (CAN) network.
If the wiring harness or connectors appear damaged, inspect them closely for issues like broken, bent, or corroded pins.
Reflashing the TCM may be necessary to resolve the fault.
FAQ
OBD code B105D indicates an issue with the Recirculation Door Actuator circuit. Check for binding door, faulty actuator, or wiring harness problems. Inspect and repair as needed.
Common symptoms of OBD code B105D include Engine Light ON, caused by issues like a faulty Recirculation Door Actuator or wiring problems. Inspect and repair as needed.
Diagnose OBD code B105D by checking for binding recirculation door, faulty actuator, or wiring issues. Inspect harness, connectors, and components for damage or corrosion.
Wrap Up
If your vehicle displays OBD code b105d, you may experience issues with the airbag system, such as a faulty airbag sensor, wiring problems, or a malfunctioning airbag control module.
These issues can lead to the airbag warning light staying illuminated on the dashboard.
To address OBD code b105d, start by inspecting the wiring harness and connectors related to the airbag system.
Check for any damaged wires, loose connections, or corrosion.
Test the airbag sensor and control module for proper functionality, and replace any faulty components as needed to resolve the airbag system problem
