how to fix C1231 code on my Honda Civic 10th Generation (2016-2021)

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface, and the ignition is off.
• Disconnect the battery to prevent electrical shorts.

2. Inspect and Replace Wheel Speed Sensors

• Sub-step 1: Remove the wheel for easier access to the wheel speed sensor. Use a jack and jack stands to support the vehicle.
• Sub-step 2: Locate the wheel speed sensor at the hub assembly and disconnect the electrical connector.
• Sub-step 3: Remove the mounting bolt(s) securing the wheel speed sensor using a socket set.
• Sub-step 4: Carefully pull the sensor out from the hub assembly.
• Sub-step 5: Install the new wheel speed sensor by reversing the removal steps. Ensure it is seated properly and secured with the mounting bolt(s) to the recommended torque specifications (typically around 8-10 ft-lbs).
• Sub-step 6: Reconnect the electrical connector to the new sensor.

3. Repair Wiring Issues

• Sub-step 1: If you found damaged wiring or connections during the visual inspection, cut and strip the damaged sections.
• Sub-step 2: Use solder and heat shrink tubing or wire connectors to repair the wiring.
• Sub-step 3: Ensure all connections are secure and insulated to prevent future issues.

4. Reconnect Battery and Clear Codes

• Sub-step 1: Reconnect the vehicle's battery terminal.
• Sub-step 2: Use the OBD-II scanner to clear the C1231 code and any other related codes.
• Sub-step 3: Start the vehicle and verify that the dashboard lights for ABS and traction control are off.