what does it mean if my Toyota Highlander has a C1241 error code?

Solution

1. Preparation

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

2. Inspect Wheel Speed Sensors

• Locate each wheel speed sensor, typically mounted on the wheel hub or brake assembly.
• Remove the sensor's electrical connector by pressing on the release tab.
• Inspect the sensor for physical damage or dirt accumulation; clean if necessary.

3. Test Wheel Speed Sensors

• Use a multimeter to measure the resistance across the terminals of each wheel speed sensor; the resistance should typically be between 1,000 to 2,500 ohms (refer to the service manual for exact specifications).
• If a sensor is outside this range, replace it.

4. Check Wiring and Connectors

• Examine the wiring harness leading to each wheel speed sensor for any signs of wear, corrosion, or damage.
• Repair or replace any damaged wiring or connectors.

5. Test Drive and Reconnect Battery

• After repairs, reconnect the battery and start the vehicle.
• Conduct a test drive to ensure the ABS and VSC systems are functioning properly and check for the reappearance of the error code.