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Home >> Subaru >> 2019 >> WRX Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (Except For STI) (2 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0336: Crankshaft Position Sensor "A" Circuit Range/Performance >> Notes

DTC P0336: Crankshaft Position Sensor "A" Circuit Range/Performance: Notes

DTC detecting condition: 

Detected when two consecutive driving cycles with fault occur.

Trouble symptom: 

  1. CHECK CONDITION OF CRANKSHAFT POSITION SENSOR. 

    Check installation condition of the crankshaft position sensor.

    Is the crankshaft position sensor installation bolt tightened securely?

    Yes:  Go to  2.

    No:  Tighten the crankshaft position sensor installation bolt securely. Refer to FUEL INJECTION (FUEL SYSTEMS) (EXCEPT FOR STI)>CRANKSHAFT POSITION SENSOR .

  2. CHECK CRANKSHAFT POSITION SENSOR PLATE. 

    Check the crankshaft position sensor plate.

    Is there crack or damage in the crankshaft position sensor plate teeth?

    Yes:  Replace the crankshaft position sensor plate. Refer to MECHANICAL (EXCEPT FOR STI)>CYLINDER BLOCK .

    No:  Go to  3.

  3. CHECK INSTALLATION CONDITION OF TIMING CHAIN. 

    Turn the crankshaft, and align alignment mark on crank sprocket with alignment mark on cylinder block.

    ST 18252AA000 CRANKSHAFT SOCKET 

    Is the timing chain dislocated from its proper position?

    Yes:  Correct the installation condition of timing chain. Refer to MECHANICAL (EXCEPT FOR STI)>TIMING CHAIN ASSEMBLY .

    No:  Replace the crankshaft position sensor. Refer to FUEL INJECTION (FUEL SYSTEMS) (EXCEPT FOR STI)>CRANKSHAFT POSITION SENSOR .