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

• Tools Required: OBD-II scanner, multimeter, basic hand tools (sockets, wrenches), safety gloves, and safety glasses.
• Ensure the vehicle is parked on a level surface with the ignition off before starting repairs.

2. Remove the Wheel

• Sub-steps:
  • Loosen the lug nuts on the affected wheel using a socket wrench.
  • Lift the vehicle using a jack and secure it with jack stands.
  • Remove the lug nuts completely and take off the wheel.

3. Inspect and Replace the Wheel Speed Sensor

• Sub-steps:
  • Locate the wheel speed sensor mounted near the brake rotor.
  • Disconnect the sensor's electrical connector.
  • Remove the mounting bolt securing the sensor using an appropriate socket.
  • Pull the sensor out gently from its housing.
  • Inspect the sensor and the connector for any visible damage; if damaged, replace with a new sensor.
  • Install the new wheel speed sensor, ensuring it is properly seated and secured with the mounting bolt to the specified torque (typically around 8-10 ft-lbs).
  • Reconnect the electrical connector.

4. Reassemble and Test

• Sub-steps:
  • Reattach the wheel and hand-tighten the lug nuts.
  • Lower the vehicle from the jack stands and fully tighten the lug nuts in a crisscross pattern to the manufacturer’s specified torque (usually around 80-100 ft-lbs).
  • Start the vehicle and check for any warning lights.
  • Conduct a test drive to verify proper operation of the ABS and ensure the C1231 code does not return.