C0300 BUICK, CADILLAC, CHEVROLET, GCM, OLDSMOBILE: REAR PROPSHAFT SPEED SENSOR
POST UPDATED IN June, 2023
C0300 BUICK, CADILLAC, CHEVROLET, GCM, OLDSMOBILE: REAR PROPSHAFT SPEED SENSOR
The rear driveshaft speed sensor is a permanent magnet (PM) generator device. This PM generator produces a pulsating AC voltage. The voltage and the number of pulses tend to rise as the speed increases. The Module converts the pulsating AC voltage into a propeller shaft RPM, which performs various calculations. The RPM of the propeller shaft can be displayed by an automotive scanner.
The Diagnostic code C0300 OBD2 is set when a malfunction is detected in the Rear Drive Shaft Speed Sensor.
The C0300 OBDII fault code C0300 is set for the following reasons:
To troubleshoot DTC C0300 OBD2, follow these suggestions: