VERACRUZ(EN) >2007 > G 3.8 DOHC > Fuel System > Engine Control System > Crankshaft Position Sensor (CKPS)>Repair procedures  
INSPECTION
FUNCTION AND OPERATION PRINCIPLE
Crankshaft Position Sensor (CKPS) detects the crankshaft position and is one of the most important sensors of the engine control system. If there is no CKPS signal input, the engine may stop because of CKPS signal missing. This sensor is installed on transaxle housing and generates alternating current by magnetic flux field which is made by the sensor and the target wheel when the engine rotates.The target wheel consists of 58 slots and 2 missing slots on 360 CA (Crank Angle).

SPECIFICATION
Item
 Specification
Coil Resistance (Ω)
 630 ~ 770Ω at 20°C (68°F)
Air Gap (mm)
 0.5 ~ 1.5

WAVEFORM

This example shows a typical Crankshaft Position Sensor (CKPS) and Camshaft Position Sensor (CMPS) waveform at idle. If the 17th signal of the CKPS after missing tooth is aligned with the high signal of the CMPS at idle, PCM recognizes that Synchronization between CKPS and CMPS is completed.
SCHEMATIC DIAGRAM

COMPONENT INSPECTION
1.
Check signal waveform of CMPS and CKPS using a scantool.
Specification: Refer to "WAVE FORM"