Intermittent Signal From Left Front Sensor

Symptom:
INTERMITTENT SIGNAL FROM LEFT FRONT SENSOR

When Monitored and Set Condition:
INTERMITTENT SIGNAL FROM LEFT FRONT SENSOR

When Monitored:
1. Ignition turned on for at least 3.5 seconds.
2. Average filtered speed computation for the two front wheel above 6 km/h (4 mph).
3. Speed computation for each suspect sensor above 32 km/h (20 mph) (brake applied or ABS active) or 19 km/h (12 mph) (brake released or ABS inactive)

Set Condition:
4. No output signal from one or more sensors for 15 milliseconds (ms).

POSSIBLE CAUSES
LEFT FRONT WHEEL SPEED SENSOR OR CONNECTOR DAMAGED
TONE WHEEL DAMAGED
LEFT FRONT WHEEL SPEED SENSOR AIR GAP OUT OF SPECIFICATION
LEFT FRONT WHEEL SPEED SENSOR INOPERATIVE
CAB WON'T RESPOND TO LEFT FRONT WHEEL SPEED SENSOR SIGNAL
INTERMITTENT SIGNAL DTC