Test B: DTC C1145 (RF), DTC C1155 (LF), DTC C1165 (RR), DTC C1175 (LR) - Wheel Speed Sensor Input Circuit Failure
PINPOINT TEST B: DTC C1145 (RF), DTC C1155 (LF), DTC C1165 (RR), DTC C1175 (LR) - WHEEL SPEED SENSOR INPUT CIRCUIT FAILURENormal Operation
The wheel speed sensor generates a square wave signal that is sent to the ABS module. The wheel speed sensor circuitry connects to the ABS module connector C135 through 2 wires and a connector at each wheel speed sensor. When the ignition is turned to the RUN position, the ABS module carries out a self-test by sending a reference voltage through the wheel speed sensors and their circuitry to determine if they are functional. Power and ground are supplied to the wheel speed sensors from the ABS module.
The front wheel speed sensors are integral to the wheel hub and bearing assembly and have a serviceable jumper harness connecting the sensor to the main wire harness.
Possible Causes
^ Circuit open
^ Circuit shorted
^ Front wheel speed sensor jumper harness
^ Wheel speed sensor(s)
^ ABS module
B1-B3:
B4:
