C1100 Buick ABS Pump Switch Circuit Failure

C1101 Buick Rear Right Sensor 1

Possible causes
– ABS Wheel Sensor not installed currently
– ABS Wheel Sensor rotor or encoder damaged
– Faulty ABS Wheel Sensor
– ABS Wheel Sensor harness is open or shorted
– ABS Wheel Sensor circuit poor electrical connection
– Faulty ABS Control Unit
What about the obd code?
Circuit of rear Right wheel sensor (4WD) or rear sensor (2WD) is open, shorted or sensor voltage is unusual
Symptoms
– ABS Warning Light ON
C1101 Buick OBD Code Description

When the sensor rotor rotates, the magnetic field changes. It converts the magnetic field changes to current signals (rectangular wave) and transmits them to the ABS actuator and electric unit (control unit).

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