C1658 2016 Toyota RAV4 Code - Rear Wheel Speed Sensor Malfunction

The C1658 code indicates a Rear Wheel Speed Sensor Malfunction, meaning the vehicle's ABS system has detected an issue with the rear wheel speed sensor or its circuit.

Common symptoms include ABS warning light illumination, traction control light activation, and possible loss of ABS or traction control functionality.

Causes may include a faulty rear wheel speed sensor, damaged wiring or connectors, dirt or debris on the sensor, or issues with the ABS control module.

Start by visually inspecting the rear wheel speed sensor, its wiring, and connectors. Use a multimeter to check sensor resistance and scan for additional ABS codes.

Yes, dirt, debris, or corrosion on the wheel speed sensor can interfere with its function and trigger the C1658 code.

While the vehicle may still be drivable, the ABS and traction control systems may not function properly, increasing the risk in slippery conditions.

Repairs may include cleaning or replacing the rear wheel speed sensor, repairing damaged wiring or connectors, or, in rare cases, replacing the ABS control module.

Repair costs vary but typically range from $150 to $400, depending on whether the sensor needs replacement or if wiring repairs are required.

While unlikely, a weak or failing battery can cause electrical issues that may indirectly affect the ABS system. It’s worth checking the battery’s voltage as part of diagnosis.

Regularly inspect and clean the wheel speed sensors, avoid driving through deep water or mud, and address wiring or connector issues promptly to prevent future malfunctions.