Right Rear Sensor Signal Failure

Tests 137 Through 142:

Tests 143 Through 145:

Symptom:
RIGHT REAR SENSOR SIGNAL FAILURE

When Monitored:
Ignition on. The CAB monitors the wheel speed signals at all times.

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
RIGHT REAR WHEEL BEARING CLEARANCE OUT OF SPECIFICATION
RIGHT REAR WSS AIR GAP OUT OF SPECIFICATION
RIGHT REAR WSS CIRCUITS SHORTED TOGETHER
RIGHT REAR WSS DEFECTIVE
RIGHT REAR WSS OBSERVABLE DEFECT
TONE WHEEL DEFECTIVE