Code 26 - Left Front Toothed Wheel Frequency Error

Toothed wheel generates a voltage pulse as it moves past sensor. EBCM uses these pulses to determine wheel speed. Amount of voltage generated in each pulse depends on wheel speed and air gap between sensor and toothed wheel.

EBCM uses wheel speed sensor signal to calculate vehicle reference speeds and individual speed, acceleration and slip values for each wheel. These values are used to determine when anti-lock control is needed.

Code 26 will set if improper speed signals are generated by toothed ring sensor. Possible causes are incorrect number of teeth on sensor ring, sensor ring covered with dirt, grease or metallic particles, and damaged toothed sensor ring.

Code 26 may set if mini-spare tire has been used or tire sizes on vehicle differ from each other.

1. Checks for properly mounted sensor and mounting torque.
2. Checks for faulty toothed sensor ring.
3. Checks for contamination on sensor face or toothed sensor ring.