what does code C1201 mean for Toyota Highlander Third Generation (2014-2019)

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, basic hand tools, brake fluid, cleaning supplies.
• Park the vehicle on a level surface, engage the parking brake, and disconnect the battery.

2. Inspect and Replace ABS Fuse/Relay

• Locate the fuse box under the dashboard or engine compartment.
• Remove the cover and identify the ABS fuse and relay.
• Sub-steps:
  • Use the fuse puller to remove the ABS fuse and inspect for a blown fuse. Replace if necessary.
  • Disconnect and inspect the ABS relay; replace if it shows signs of failure.

3. Check ABS Wheel Speed Sensors

• Raise the vehicle using a jack and secure it with jack stands.
• Locate the wheel speed sensors on each wheel hub.
• Sub-steps:
  • Disconnect the sensor electrical connector.
  • Use a multimeter to test the sensor resistance (should typically be within manufacturer specifications).
  • Clean the sensor and connector with an electronic cleaner. Replace any faulty sensors.

4. Brake Fluid Inspection

• Locate the brake fluid reservoir.
• Sub-steps:
  • Check the fluid level and condition; replace with manufacturer-approved brake fluid if needed.
  • Bleed the brake system if air is suspected in the lines.

5. Reconnect Battery and Clear Codes

• Reconnect the battery.
• Use the OBD-II scanner to clear the C1201 code and any other related codes.
• Perform a road test to ensure the issue is resolved.