Rear Sensor Open

Test 1:

Tests 2 Through 6:

Tests 7 Through 9:

Symptom:
REAR SENSOR OPEN

When Monitored and Set Condition:
REAR SENSOR OPEN

When Monitored:
Ignition On. The CAB continuously monitors the wheel speed sensor circuits by sending a small signal through the sensor circuits.

Set Condition:
1. No output signal from any sensor for initial 1.0 second period.
2. Continuously excessive sensor resistance for subsequent 1.0 second period. If the CAB does not receive the proper signal back, a Sensor Open DTC is set.

POSSIBLE CAUSES
REAR WHEEL SPEED SENSOR (+) CIRCUIT OPEN
REAR WHEEL SPEED SENSOR (-) CIRCUIT OPEN
REAR WHEEL SPEED SENSOR (+) CIRCUIT SHORTED TO GROUND
REAR WHEEL SPEED SENSOR 2-WAY CONNECTOR OBSERVABLE DEFECT
REAR WHEEL SPEED SENSOR DEFECTIVE
REAR WHEEL SPEED SENSOR OBSERVABLE DEFECT
REAR WHEEL SPEED SENSOR WIRING HARNESS OBSERVABLE DEFECT
CAB CONNECTOR OBSERVABLE DEFECT
CAB DEFECTIVE