Right Front Wheel Speed Signal Failure

Test 1-3:

Test 4-7:

SYMPTOM
RIGHT FRONT WHEEL SPEED SIGNAL FAILURE

TEST NOTE
This symptom is diagnosed using the test LEFT FRONT WHEEL SPEED SIGNAL FAILURE.

WHEN MONITORED
Wheel speed comparison is checked and verified at drive off and continuously thereafter.

SET CONDITION
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 Diagnostic Trouble Code (DTC) is set. The DTC can also set if the signal is missing or erratic.

POSSIBLE CAUSES
- WHEEL SPEED SIGNAL FAILURE DTC PRESENT
- AFFECTED WHEEL SPEED SENSOR SIGNAL INOPERATIVE
- AFFECTED WHEEL SPEED SENSOR CONNECTOR DAMAGED
- AFFECTED WHEEL SPEED SENSOR TONE WHEEL DAMAGED
- AFFECTED WHEEL SPEED SENSOR AIR GAP FAULT
- WHEEL BEARING FAULT
- BRAKE LINING FAULT
- AFFECTED WHEEL SPEED SENSOR CIRCUIT ELECTRICAL FAULT