C Yukon 2WD V8-5.7L VIN R (1999)
Crankshaft Position Sensor: Description and Operation
Crankshaft Position Sensor-2
The scan tool scan tool displays crankshaft position sensor data as engine speed (RPM). An error in the crankshaft position sensor circuit should set a
DTC P0336, P0337, P0338, or a P0339. The crankshaft position sensor provides a signal through the ignition control module which the VCM uses as
reference to calculate RPM and crankshaft position.
