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Home >> Subaru >> 2013 >> Legacy Premium, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 37 (Engine Controls (Diagnostics) (H4DOTC)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0335 Crankshaft Position Sensor "A" Circuit >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2013 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC PROCEDURE

Step Check Yes No
1 CHECK CONDITION OF CRANKSHAFT POSITION SENSOR.  Is the crankshaft position sensor installation bolt tightened securely? Go to step 2.  Tighten the crankshaft position sensor installation bolt securely.
2 CHECK CRANKSHAFT POSITION SENSOR. 
  1. Turn the ignition switch to OFF.
  2. Remove the crankshaft position sensor.
  3. Measure the resistance between terminals of crankshaft position sensor.

    Terminals 

    No. 1 - No. 2: 

 Is the resistance between 1 and 4 kΩ? Go to step 3.  Replace the crankshaft position sensor. < Refer to CRANKSHAFT POSITION SENSOR . >
3 CHECK HARNESS BETWEEN ECM AND CRANKSHAFT POSITION SENSOR CONNECTOR. 
  1. Disconnect the connector from ECM.
  2. Measure the resistance of harness between ECM and crankshaft position sensor connector.

    Connector & terminal 

    (B137) No. 17 - (E10) No. 1: 

    (B137) No. 25 - (E10) No. 2: 

 Is the resistance less than 1 Ω? Repair the poor contact of ECM and crankshaft position sensor connector. Repair the harness and connector.
NOTE: In this case, repair the following item:
  • Open circuit in harness between ECM and crankshaft position sensor connector
  • Poor contact of coupling connector
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