Year of the corolla?

 

This likely due for replacement. The sensor is communicating fault and doesn't see where the cams position is to report to the ecu. You'll need small probes for your multimeter to back probe the connector and a wiring diagram to find the power and ground.


You can also remove the sensor and inspect it for damage. Clean off the end and see if the code goes away. High chance of the code coming back though.

 

thank you guys. I already solve the problem. I found out that the wire for o2 sensor was tapped to the wire of camshaft sensor..after removig the wire..alarm dissappears.
so happy. it cost for $100+ for all the checkups but no output. fuxk those technicians.