(27) Intermittent Signal From Left Front Sensor

Tests 21 Through 24:

Tests 25 Through 29:

Symptom
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 4 mph.
3. Speed computation for each suspect sensor above 20 mph (brake applied or ABS active) or 12 mph (brake released or ABS inactive)

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

Possible Causes
- CAB connector observable defect
- Left front WSS circuit open
- Left front WSS circuit open
- Left front WSS 2-way connector observable defect
- Left front WSS defective
- Left front WSS wiring harness observable defect
- left front WSS/tone wheel observable defect
- WSS wiring harness observable defect