Left Rear Sensor Signal Failure

Tests 62 Through 67:

Tests 68 Through 70:

Symptom:
LEFT REAR SENSOR SIGNAL FAILURE

When Monitored:
The CAB monitors the wheel speed sensor signal at all times.
1. Comparison is checked at drive off or every 7 milliseconds.
2. Continuity is checked continuously.
3. Phase length supervision is checked every 7 milliseconds.

Set Condition:
If the sensor signal is missing, as soon as vehicle speed exceeds 12 mph the DTC will set. If during an ABS stop, the CAB commands any valve solenoid on for an extended length of time, and does not see a corresponding wheel speed change, the DTC is set.

Possible Causes
CAB CONNECTOR OBSERVABLE DEFECT
LEFT REAR WSS CIRCUITS SHORTED TOGETHER
TONE WHEEL DEFECTIVE
LEFT REAR WHEEL BEARING CLEARANCE OUT OF SPECIFICATION
LEFT REAR WSS AIR GAP OUT OF SPECIFICATION
LEFT REAR WSS SENSOR DEFECTIVE
LEFT REAR WSS SENSOR OBSERVABLE DEFECT
NO PROBLEM FOUND