Lumina V6-3.1L VIN J (2000)
Crankshaft Position Sensor: Description and Operation
7X Crankshaft Position (CKP) Sensor
7X Crank Shaft Position (CKP) Sensor
The ignition control module uses the 7X crankshaft position sensor to generate 3X reference pulses witch the PCM uses to calculate RPM and crankshaft
position. The PCM uses the pulses to initiate injector pulses. If the PCM receives no pulses on this circuit, DTC P1374 will set and the PCM will use the
24X reference signal circuit for fuel and ignition control. For further information, refer to In formation Sensors/ Switches Description.
