what does it mean if my Honda Accord Eleventh Generation (2023-present) has a C1231 error code

Learn how to diagnose and fix C1231 ABS issue in Honda Accord Eleventh Generation. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the battery to ensure safety while working on electrical components.

2. Remove Wheel and Inspect Sensor

1. Loosen the lug nuts of the wheel corresponding to the affected sensor.
2. Lift the vehicle using a jack and secure it on jack stands.
3. Remove the wheel to gain access to the wheel speed sensor.
4. Inspect the wheel speed sensor for physical damage or debris.

3. Replace Wheel Speed Sensor (if necessary)

1. If the sensor is damaged, disconnect the electrical connector from the sensor.
2. Remove the retaining bolt(s) securing the wheel speed sensor to the hub.
3. Carefully pull the sensor out of its mounting position.
4. Install the new wheel speed sensor by reversing the removal steps.
   • Ensure the sensor is seated properly and secure with the retaining bolt(s).
   • Connect the electrical connector firmly to the new sensor.

4. Reassemble and Connect Battery

1. Reinstall the wheel and hand-tighten the lug nuts.
2. Lower the vehicle from the jack stands and torque the lug nuts to the manufacturer's specifications (typically around 80-100 ft-lbs).
3. Reconnect the battery terminal, ensuring a secure connection.

5. Clear Codes and Test Drive

1. Use the OBD-II scanner to clear the C1231 error code from the system.
2. Conduct a test drive to ensure proper functioning of the ABS system and verify that the error code does not reappear.