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Basic Diagnostic Procedure: Procedure

CAUTION: Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to CRUISE CONTROL (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION .
  1. PERFORM CUSTOMER INTERVIEW  .

    Ask the customer when and how the trouble occurred using the Check List for Interview. Ref. to CRUISE CONTROL (DIAGNOSTICS)>CHECK LIST FOR INTERVIEW .

    Did you interview the customer?

    Yes  : Go to  2.

    No  : Perform the interview, and Go to  2.

  2. CHECK MALFUNCTION INDICATOR LIGHT  .

    Make sure the malfunction indicator light illuminates.

    Does the malfunction indicator light illuminate?

    Yes  : Go to  6.

    No  : Go to  3.

  3. CHECK CRUISE INDICATOR LIGHT  .

    Make sure the cruise indicator light blinks.

    Does the cruise indicator light blink?

    Yes  : Go to  8.

    No  : Go to  4.

  4. CHECK CRUISE MAIN SWITCH OPERATION  .

    Check the CRUISE MAIN switch operation. (Check the illumination of the CRUISE indicator.)

    Is the CRUISE MAIN switch turned to ON? (Does the CRUISE indicator illuminate?)

    Yes  : Go to  5.

    No  : Go to phenomenon 1. Ref. to CRUISE CONTROL (DIAGNOSTICS)>DIAGNOSTICS WITH PHENOMENON>DIAGNOSTIC PROCEDURE WITH PHENOMENON .

  5. CHECK CRUISE CONTROL SET OPERATION  .

    Check the cruise control setting operation.

    Can the cruise control be set while driving at 40 km/h (25 MPH) or more?

    Yes  : Go to  9.

    No  : Go to  8.

  6. CHECK DTC  .
    1. Turn the ignition switch to ON.
    2. Using the Subaru Select Monitor, read all DTCs. Ref. to LAN SYSTEM (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

    Is DTC related to engine or ABS/VDC displayed? (Current code)

    Yes  : Record the DTC. Go to  7.

    No  : Go to phenomenon 2. Ref. to CRUISE CONTROL (DIAGNOSTICS)>DIAGNOSTICS WITH PHENOMENON>DIAGNOSTIC PROCEDURE WITH PHENOMENON .

  7. CHECK FREEZE FRAME DATA  .

    Using the Subaru Select Monitor, check the Freeze Frame Data or Information in Trouble State.

    Was the Freeze Frame Data or Information in Trouble State recorded?

    Yes  : Record the data. Perform the inspection according to the engine or ABS/VDC related DTC.

    No  : Perform the inspection according to the engine or ABS/VDC related DTC.

  8. CHECK CANCEL CODE  .

    Read the cancel codes using the Subaru Select Monitor. Ref. to CRUISE CONTROL (DIAGNOSTICS)>CANCEL CODE .

    NOTE: If the following is performed, the cancel code will be cleared.
    • Do not turn the ignition switch to OFF after the cruise control is deactivated.
    • Do not operate the cruise control command switch after the cruise control is deactivated.

    Is a cancel code displayed?

    Yes  : Perform the diagnosis according to the cancel code. Ref. to CRUISE CONTROL (DIAGNOSTICS)>CANCEL CODE>LIST .

    No  : Go to  9.

  9. INSPECTION OF SET INDICATOR  .

    Check the illumination of the SET indicator.

    Does the SET indicator illuminate?

    Yes  : Go to  10.

    No  : Go to phenomenon 3. Ref. to CRUISE CONTROL (DIAGNOSTICS)>DIAGNOSTICS WITH PHENOMENON>DIAGNOSTIC PROCEDURE WITH PHENOMENON .

  10. CHECK VEHICLE SPEED IS HELD WITHIN SET SPEED  .

    Make sure the vehicle speed is held within set speed.

    Is the vehicle speed kept within the setting speed ±3 km/h (±2 MPH)? (Confirm that on a level road.)

    Yes  : Go to  11.

    No  : Go to phenomenon 4. Ref. to CRUISE CONTROL (DIAGNOSTICS)>DIAGNOSTICS WITH PHENOMENON>DIAGNOSTIC PROCEDURE WITH PHENOMENON .

  11. CHECK RES/+ OPERATION  .

    Check the RES/+ switch operation.

    Does the vehicle speed increase or return to set speed after RES/+ switch has been pressed?

    Yes  : Go to  12.

    No  : Go to phenomenon 5. Ref. to CRUISE CONTROL (DIAGNOSTICS)>DIAGNOSTICS WITH PHENOMENON>DIAGNOSTIC PROCEDURE WITH PHENOMENON .

  12. CHECK SET/- OPERATION  .

    Check the SET/- switch operation.

    Does the vehicle speed decrease after SET/- switch has been pressed?

    Yes  : Go to  13.

    No  : Go to phenomenon 6. Ref. to CRUISE CONTROL (DIAGNOSTICS)>DIAGNOSTICS WITH PHENOMENON>DIAGNOSTIC PROCEDURE WITH PHENOMENON .

  13. CANCEL OPERATION CHECK  .

    Check the CANCEL switch operation.

    Is the cruise control released after CANCEL switch has been pressed?

    Yes  : Go to  14.

    No  : Go to phenomenon 7. Ref. to CRUISE CONTROL (DIAGNOSTICS)>DIAGNOSTICS WITH PHENOMENON>DIAGNOSTIC PROCEDURE WITH PHENOMENON .

  14. CHECK CRUISE CONTROL RELEASE OPERATION  .

    Check the cruise control release operation.

    Is the cruise control released after brake pedal has been depressed?

    Yes  : Go to  15.

    No  : Go to phenomenon 8. Ref. to CRUISE CONTROL (DIAGNOSTICS)>DIAGNOSTICS WITH PHENOMENON>DIAGNOSTIC PROCEDURE WITH PHENOMENON .

  15. CHECK CRUISE CONTROL RELEASE OPERATION  .

    Check the cruise control release operation.

    Is the cruise control released after shifting to the neutral position?

    Yes  : Finish the diagnosis.

    No  : Go to phenomenon 9. Ref. to CRUISE CONTROL (DIAGNOSTICS)>DIAGNOSTICS WITH PHENOMENON>DIAGNOSTIC PROCEDURE WITH PHENOMENON .

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