what does it mean when my Toyota Highlander shows C1241 code

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Raise the vehicle using a jack and secure it with jack stands.

2. Inspect Wheel Speed Sensors

• Remove the wheel cover and wheel to access the brake assembly.
• Locate the wheel speed sensor; it is typically mounted near the brake rotor.
• Disconnect the sensor's electrical connector.
• Remove the sensor from its mounting point.
• Clean any debris from the sensor and the mounting area.
• Reinstall the wheel speed sensor and connect the electrical connector.

3. Check Wiring and Connectors

• Examine the wiring harness for any visible damage, fraying, or corrosion.
• Use a multimeter to check the continuity of the wiring from the sensor to the ABS module.
• Repair or replace any damaged wiring or connectors as necessary.

4. Test ABS Control Module

• Reconnect the battery terminal.
• Use an OBD-II scanner to clear the C1241 code.
• Test the ABS control module and ensure it receives power and ground.
• If the module is faulty, it will need to be replaced.

5. Final Assembly

• Reinstall the wheel and wheel cover.
• Lower the vehicle from the jack stands.
• Reconnect the battery terminal.