Code 36 - Rear Axle Toothed Wheel Frequency Error

As differential pinion gear turns, toothed wheel (mounted on differential pinion gear) generates a voltage pulse as it moves past sensor. Frequency and voltage generated is proportional to rear axle speed.

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

Code 36 will set if improper speed signals are generated by toothed ring sensor. Possible causes are incorrect number of teeth on sensor ring, sensor rings covered with dirt, grease or metallic particles, and damaged toothed sensor ring.

Code 36 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.