Crankshaft Position Sensor: Testing and Inspection
CKPSCKPS:
The CKP sensor compares the signal from the crank position sensor with that from TDC sensor to measure the upper dead point of each cylinder piston. The position of CAM is detected immediately at the same time when the ignition key is turned ON.
It outputs digital signal by two hall devices.
Circuit Diagram And Output Signal:
In case of faulty TDC sensor, the CKP signal can be used to compute the TDC (The probability of cylinder #1 TDC is 50%) and engine rate to control the fuel quantity and ignition timing and provide availability of driving the engine.
Using Hi-Scan:
Troubleshooting hints
An abnormal operation of camshaft position sensor may cause engine stall, engine hesitation in idling or acceleration unavailability due to abnormal injection.
Harness Inspection Procedures:
