C0300 CADILLAC – Rear Propshaft Speed Sensor

C0300 CADILLAC Possible Symptoms

Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)

C0300 CADILLAC Possible Causes

Faulty Rear Propshaft Speed Sensor,Rear Propshaft Speed Sensor harness is open or shorted,Rear Propshaft Speed Sensor circuit poor electrical connection

C0300 CADILLAC Description

The rear propshaft speed sensor is a Permanent Magnet (PM) generator. The PM generator produces a pulsing AC voltage. The AC voltage level and number of pulses increases as speed increases. The module converts the pulsating AC voltage to a propshaft RPM which is used for calculations. The propshaft RPM can be displayed with a scan tool. This DTC detects an open, short to ground, short to voltage or faulty sensor.