Component Tests and General Diagnostics
CRANKSHAFT POSITION SENSOR (CKP) SYSTEM DIAGNOSISCIRCUIT DESCRIPTION
The crankshaft position (CKP) sensor is a variable reluctance sensor. The crankshaft position (CKP) sensor indicates the crankshaft speed and position. The CKP sensor produces an AC voltage of different amplitude and frequency. The frequency depends on the velocity of the crankshaft. The AC voltage output depends on the crankshaft position and battery voltage. The CKP sensor works in conjunction with a 7X reluctor wheel attached to the crankshaft. The CKP sensor connects to the powertrain control module (PCM) through the following circuits:
- The CKP sensor signal
- The low reference
TEST
Steps 1-6:
Steps 7-13:
