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Home >> Subaru >> 2017 >> Legacy 2.5i Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Control System (Diagnostics) (P0161 To P0685) (H6DO)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0333 Knock/Combustion Vibration Sensor 2 Circuit High Bank 2 >> Notes

DTC P0333 Knock/Combustion Vibration Sensor 2 Circuit High Bank 2: Notes

WARNING: This page is about a different variant/trim than selected.

DTC detecting condition: 

Immediately at fault recognition

Trouble symptom: 

CAUTION: After servicing or replacing faulty parts, perform Clear Memory Mode <Ref. to OPERATION , Clear Memory Mode.>, and Inspection Mode <Ref. to PROCEDURE , Inspection Mode.>.

Wiring diagram: 

Engine Electrical System <Ref. to WIRING DIAGRAM , Engine Electrical System.>

Fig 1: Knock/Combustion Vibration Sensor 1 Circuit Low Bank 1 Or Single Sensor - Wiring Diagram
G11589069Courtesy of SUBARU OF AMERICA, INC.
Step Check Yes No
1 CHECK HARNESS BETWEEN ECM AND KNOCK SENSOR CONNECTOR. 
  1. Turn the ignition switch to OFF.
  2. Disconnect the connector from ECM.
  3. Measure the resistance between ECM connectors.

Connector & terminal 
(E158) No. 16 - (E158) No. 34: 
Is the resistance 600 kΩ or more? Go to step 2.  Repair the poor contact of ECM connector.
2 CHECK KNOCK SENSOR. 
  1. Disconnect the connector from the knock sensor.
  2. Measure the resistance between knock sensor terminals.

Terminals 
No. 1 - No. 2: 
Is the resistance 600 kΩ or more? Replace the knock sensor. <Ref. to KNOCK SENSOR .> Repair the harness and connector.
NOTE: In this case, repair the following item:
  • Open circuit in harness between ECM connector and knock sensor connector
  • Poor contact of knock sensor connector