Code 35 - Left Rear Wheel Speed Sensor: Notes

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

SERVICE ABS and SERVICE ASR indicators will be on and Code 35 will be set if speed sensor is faulty or if there is a short to voltage or ground in circuit No. 885 or circuit No. 884. Code will only set with ignition on and vehicle moving.

1. Checks for correct resistance reading of wheel speed sensor.
2. Checks for short to battery voltage in wheel speed sensor circuit wires.
3. Checks for short between wheel speed sensor circuit wires.
4. Checks for short to ground in circuit No. 885. Ground may be a hard, constant short to ground or a partial (resistive) short. A resistive short of less than 2 megohms can set a Code 35.
5. Checks if code resets during road test. If code is reset during road test, intermittent problems are suspected.
6. Checks for intermittents in wiring and connectors.
7. Checks sensor mounting, toothed wheel and rear wheel bearing problems which may be causing code setting fault. Check toothed wheel for large grooves, gouges, marks, etc. that might affect signal at speed sensor. Check for foreign material buildup in the gaps between teeth.
8. Replace speed sensor assembly since it is most likely cause of a code reset during road test.