The OBD code B221E indicates a fault with the radio unit in the vehicle.
Symptoms include the Engine Light being ON.
This code is usually caused by a faulty radio unit, open or shorted radio unit harness, or poor electrical connection in the radio unit circuit.
It is not a serious issue.
To fix it, inspect the wiring harness and connectors for any damage or corrosion.
| 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 b221e OBD Code
The vehicle displays an airbag warning light on the dashboard with fault code B221E stored.
- Symptoms: Service Engine Soon Warning Light ON.
- Possible loss of communication with the instrument panel control module.
- Difficulty starting the vehicle.
- Engine stalling while driving.
- Unusual electrical issues like erratic gauge readings or warning lights flashing.
Causes of the b221e OBD Code
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Possible triggers for fault code B221E include issues with the occupant classification system.
- B221E can be caused by a faulty Radio Unit.
- A Radio Unit harness that is open or shorted.
- A Radio Unit circuit with a poor electrical connection.
Fixing Error Code b221e Step By Step
Replace the faulty occupant classification module to address fault code B221E.
- To fix OBDII code B221E, first, review the possible causes related to this code.
- Visually examine the wiring harness and connectors associated with the affected circuit.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- Repair or replace any damaged wiring or connectors found during the inspection.
- Clear the fault code using a diagnostic scan tool.
- Test drive the vehicle to verify if the code returns.
- If the code persists, consider replacing the faulty component or module as necessary.
Cost Of Fixing b221e Fault Code
Diagnosing and repairing fault code B221E may involve inspecting and replacing the occupant classification system components.
The cost to diagnose and fix OBD code B221E is typically based on 1. 0 hour of labor, with rates ranging from $75 to $150 per hour.
The total cost will depend on the shop’s labor rates and the complexity of the repair needed.
Details of the b221e OBD Code
B221E fault code relates to the driver’s door key cylinder switch circuit.
OBD code B221E means Driver Seatbelt Buckle Switch Circuit Short to Ground.
This code is triggered by the Restraints Control Module (RCM) when it detects a short to ground in the circuit of the driver seatbelt buckle switch.
The RCM monitors the seatbelt buckle switch circuit to ensure proper operation and trigger warnings if a fault is detected.
Mechanic’s Tech Notes
Code B221E indicates a fault in the driver’s door key cylinder switch circuit.
OBDII code B221E indicates a communication error between the body control module (BCM) and the transmission control module (TCM).
To diagnose, check TCM power and ground using a multimeter.
Use a scan tool to confirm TCM communication over the CAN network.
Inspect wiring harnesses and connectors for damage, focusing on pin connections for corrosion or damage.
Reflashing the modules may be necessary to resolve the issue.
FAQ
OBD code B221E indicates a fault with the radio unit, such as a faulty unit, open/shorted harness, or poor electrical connection. Inspect and repair wiring/connectors as needed.
Common symptoms for code B221E include Engine Light ON, caused by faulty radio unit, open/shorted harness, or poor electrical connection. Inspect and repair affected components and wiring.
Diagnose OBD code B221E by checking for a faulty radio unit, open/shorted harness, or poor electrical connection. Inspect wiring and connectors for damage or corrosion.
Wrap Up
If your vehicle displays OBD code b221e along with issues like erratic speedometer readings or ABS system malfunctions, it may indicate a fault in the vehicle speed sensor circuit.
Possible causes include damaged wiring, a faulty vehicle speed sensor, or poor electrical connections within the system.
To address OBD code b221e, start by inspecting the wiring harness for any visible damage or corrosion.
Test the connectors for proper connectivity and consider replacing the vehicle speed sensor if necessary to restore accurate speedometer readings and proper ABS system functionality.
