C164D Toyota Code - Front Wheel Speed Sensor Malfunction

C164D indicates a malfunction in the front wheel speed sensor, which is responsible for measuring the rotational speed of the front wheels and sending this data to the vehicle's control systems.

Common symptoms include the ABS warning light or traction control light turning on, reduced braking efficiency, or the ABS system not functioning properly.

This code is typically caused by a faulty front wheel speed sensor, damaged wiring or connectors, debris obstructing the sensor, or a malfunctioning ABS control module.

While the vehicle may still be drivable, the ABS and traction control systems may not function properly, increasing the risk of skidding or loss of control in certain conditions. It’s recommended to repair the issue promptly.

Diagnosis involves scanning the vehicle with an OBDII scanner, inspecting the front wheel speed sensor and its wiring, checking for debris or damage near the sensor, and testing the sensor's electrical resistance.

Fixes may include cleaning or replacing the front wheel speed sensor, repairing damaged wiring or connections, and clearing the code with a scan tool after repairs.

Repair costs vary but typically range from $100 to $300, depending on whether the sensor needs replacement or if additional repairs like wiring fixes are required.

Yes, debris, dirt, or rust on the wheel hub or near the sensor can interfere with the sensor’s ability to read wheel speed accurately, triggering the code.

Simply clearing the code without addressing the underlying issue will not fix the problem. The code will likely return if the malfunction persists.

Not always. While the sensor is a common culprit, the issue could also be due to damaged wiring, a bad ABS control module, or physical obstructions near the sensor.