why is my Toyota RAV4 giving me a C1231 code

Solution

1. Preparation

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

Tools Required:

• OBD-II scanner
• Multimeter
• Socket set
• Torque wrench
• Wire brush (for cleaning connections)

2. Inspect and Clean Connections

1. Locate the left front wheel speed sensor connector.
2. Disconnect the wheel speed sensor connector.
3. Clean the connector pins and the wiring harness using a wire brush to ensure good electrical contact.
4. Reconnect the sensor and ensure the connection is secure.

3. Replace Wheel Speed Sensor (if necessary)

1. Remove the wheel and tire to access the wheel speed sensor.
2. Unbolt the wheel speed sensor from its mounting location using the appropriate socket size.
3. Compare the old sensor with the new one to ensure compatibility.
4. Install the new wheel speed sensor, tightening the bolts to the manufacturer’s specified torque settings.
5. Reattach the wheel and tire.

4. Reconnect Battery and Clear Codes

1. Reconnect the vehicle's battery.
2. Use the OBD-II scanner to clear the C1231 code and any other stored codes from the system.

5. Test Drive the Vehicle

1. Perform a test drive to ensure all systems are functioning correctly.
2. Monitor for any warning lights on the dashboard during and after the drive.