what does C1231 code mean for Honda Civic 9th Generation (2012-2015)

Solution

1. Preparation

• Gather tools and parts required for repair.
• Ensure the vehicle is parked on a flat surface and the ignition is off.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect and Replace Wheel Speed Sensor

• 2.1. Raise the Vehicle
  • Use a jack to lift the vehicle and support it on jack stands.
• 2.2. Remove the Wheel
  • Use a socket set to remove the lug nuts and take off the left rear wheel.
• 2.3. Access the Wheel Speed Sensor
  • Locate the left rear wheel speed sensor near the brake rotor.
• 2.4. Disconnect the Sensor
  • Unplug the electrical connector from the wheel speed sensor.
• 2.5. Remove the Sensor
  • Use an appropriate wrench or socket to remove the sensor from its mount.
• 2.6. Install the New Sensor
  • Insert the new wheel speed sensor into the mount and tighten it to the manufacturer’s specifications.
• 2.7. Reconnect the Electrical Connector
  • Ensure a secure connection to the new sensor.

3. Reassemble and Test

• 3.1. Reinstall the Wheel
  • Place the wheel back on and hand-tighten the lug nuts.
• 3.2. Lower the Vehicle
  • Carefully lower the vehicle back to the ground and torque the lug nuts to specifications.
• 3.3. Reconnect the Battery
  • Reconnect the negative battery terminal.
• 3.4. Clear the Codes
  • Use the OBD-II scanner to clear any existing trouble codes.
• 3.5. Test Drive the Vehicle
  • Perform a test drive to ensure the ABS and traction control systems function correctly without triggering the C1231 code.