Nissan Car Altima & Sentra 1999-06
Crankshaft Position Sensor
Testing1.6L (GA16DE) I4 Engine & 2.0L (SR20DE) I4 Engine
2.4L (KA24DE) I4 Engine
With engine running, measure DC voltage between ECM pin 53 and ground.
Compare the measured results with the illustration.
Fig. Crankshaft Position Sensor voltage specifications-Sentra
Measure the resistance of the CKP sensor and compare with the specifications in the illustration.
Fig. Crankshaft Position Sensor resistance specifications-Altima