how to resolve C1201 code in my Toyota Highlander Third Generation (2014-2019)?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shock.
• Ensure the vehicle is on a flat surface and securely raise it using jack stands if needed.

2. Inspect and Repair Wiring

• Sub-step 1: Visually inspect the wiring harness leading to the ABS control module for any frays or breaks.
• Sub-step 2: Use a multimeter to test for continuity in the wiring. Repair or replace any damaged wires.
• Tools Required: Multimeter, wire repair kit.

3. Check Wheel Speed Sensors

• Sub-step 1: Remove the wheel corresponding to the affected sensor.
• Sub-step 2: Clean the wheel speed sensor and the area around it to remove any debris.
• Sub-step 3: Reconnect the sensor and check for proper alignment.
• Tools Required: Socket set, cleaning cloth.

4. Reconnect Battery and Clear Codes

• Sub-step 1: Reconnect the negative terminal of the battery.
• Sub-step 2: Use the OBD-II scanner to clear the C1201 code from the system.
• Tools Required: OBD-II scanner.

5. Test Drive the Vehicle

• Sub-step 1: Conduct a test drive to ensure the ABS and traction control systems are functioning properly without any warning lights.
• Sub-step 2: Monitor the braking performance under different conditions.