Prowler V6-3.5L VIN G (1999)
Crankshaft Position Sensor: Description and Operation
CRANKSHAFT POSITION SENSOR
Timing Slots
The crankshaft position sensor detects slots cut into the transmission driveplate extension. There are 3 sets of slots. Each set contains 4 slots, for a
total of 12 slots. Basic timing is set by the position of the last slot in each group. Once the Powertrain Control Module (PCM) senses the last slot,
it determines crankshaft position (which piston will next be at TDC) from the camshaft position sensor input. The 4 pulses generated by the
crankshaft position sensor represent the 69°, 49°, 29°, and 9° BTDC marks. It may take the PCM one engine revolution to determine crankshaft
position.
The PCM uses crankshaft position reference to determine injector sequence and ignition timing. Once the PCM determines crankshaft position, it
begins energizing the injectors in sequence.
Crankshaft Position Sensor Location
The crankshaft sensor is located on the passengers side of the transmission housing, above the differential housing. The bottom of the sensor is
positioned next to the drive plate.
