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Diagnostic procedure

WARNING: This page is about a different car, the 2015 Subaru XV Crosstrek. However, it is still accessible from the selected car via links, so may be relevant.
  1. Prepare for drive cycle. < Ref. to PREPARATION FOR DRIVE CYCLE , PROCEDURE, Drive Cycle.>
  2. After leaving the vehicle unattended for 6 hours or longer, start the engine and run at idling speed for 20 seconds.
  3. Read the readiness code and check that the concerned DTC is not displayed. < Ref. to ALL READINESS DIAGNOSTIC CODE(S) .>
    NOTE: If the concerned DTC is displayed, the self-diagnosis of the DTC is not complete. Repeat from step  1).
  4. Read the DTC and check that the DTC is not displayed. < Ref. to READ DIAGNOSTIC TROUBLE CODE (DTC) .>
    NOTE: If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis according to DTC. < Ref. to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) .> After repairing the cause of setting DTC, repeat from preparation for drive cycle. < Ref. to PREPARATION FOR DRIVE CYCLE , PROCEDURE, Drive Cycle.>


  1. Prepare for drive cycle. < Ref. to PREPARATION FOR DRIVE CYCLE , PROCEDURE, Drive Cycle.>
  2. Select the System Operation Check Mode «High Voltage Battery Cooling Fan» of the drive motor control system. < Ref. to DRIVE MOTOR CONTROL SYSTEM , OPERATION, System Operation Check Mode.>
  3. On «High Voltage Battery Cooling Fan» display, select {Step1}.
  4. On «High Voltage Battery Cooling Fan» display, select {Stop}.
  5. Read the readiness code and check that the concerned DTC is not displayed. < Ref. to ALL READINESS DIAGNOSTIC CODE(S) .>
    NOTE: If the concerned DTC is displayed, the self-diagnosis of the DTC is not complete. Repeat from step  1).
  6. Read the DTC and check that the DTC is not displayed. < Ref. to READ DIAGNOSTIC TROUBLE CODE (DTC) .>
    NOTE: If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis according to DTC. < Ref. to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) .> After repairing the cause of setting DTC, repeat from preparation for drive cycle. < Ref. to PREPARATION FOR DRIVE CYCLE , PROCEDURE, Drive Cycle.>
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