Circuit 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 display with a scan tool. This DTC detects an open, short to ground, short to voltage or faulty sensor.