DTC P0332: Knock/Combustion Vibration Sensor 2 Circuit Low Bank 2: Notes

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

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DTC detecting condition:

Immediately at fault recognition

Trouble symptom:
- Driving performance problem
- Knocking occurs
Wiring diagram:

Engine Electrical System Ref. to WIRING SYSTEM (CROSSTREK MODEL (HEV))>ENGINE ELECTRICAL SYSTEM .

Courtesy of SUBARU OF AMERICA, INC.

CAUTION: Use the check board when measuring the ECM terminal voltage and resistance. Ref. to ENGINE (DIAGNOSTICS) (H4DO (HEV))>GENERAL DESCRIPTION>PREPARATION TOOL>HOW TO USE CHECK BOARD .

NOTE: After the faulty parts are repaired or replaced, perform the final check in Basic Diagnostic Procedure. Ref. to ENGINE (DIAGNOSTICS) (H4DO (HEV))>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE .

Courtesy of SUBARU OF AMERICA, INC.

CHECK HARNESS BETWEEN ECM AND KNOCK SENSOR .
1. Turn the ignition switch to OFF.
2. Disconnect the connector from ECM.
3. Measure the resistance between ECM connectors.
  Connector & terminal
  
  (E158) No. 19 - (E158) No. 6:
  
  Is the resistance less than 500 kΩ?
  
  Yes: Go to 2.
  
  No: Go to 3.
CHECK KNOCK SENSOR .
1. Disconnect the connector from the knock sensor.
2. Measure the resistance between knock sensor terminals.
  Terminal
  
  No. 1 - No. 2:
  
  Is the resistance less than 500 kΩ?
  
  Yes: Replace the knock sensor. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO (HEV))>KNOCK SENSOR .
  
  No: Repair the short circuit between lines in the harness between the ECM connector and knock sensor connector.
  
  NOTE: The harness between both connectors are shielded. Remove the shield and repair the short circuit of harness.
CHECK INPUT SIGNAL OF ECM .
1. Connect the ECM.
2. Turn the ignition switch to ON.
3. Measure the voltage between ECM connector and engine ground.
  Connector & terminal
  
  (E158) No. 6 (+) - Engine ground (-):
  
  Is the voltage 2 V or more?
  
  Yes: Even if DTC is detected, the circuit has returned to a normal condition at this time.
  
  Reproduce the failure, and then perform the diagnosis again.
  
  NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.
  
  No: Repair the short circuit to ground in harness between ECM connector and knock sensor connector.
  
  NOTE: The harness between both connectors are shielded. Remove the shield and repair the short circuit of harness.