Component Function Check

1. Turn ignition switch ON.
2. Perform On Board Diagnosis Function of AV system, and then check steering switch input signal. Refer to "ON BOARD DIAGNOSIS FUNCTION ".

   Is the inspection result normal? 

   YES: INSPECTION END

   NO: GO TO 2.

Check "Self Diagnostic Result" of "AV."

Is "U1300" detected? 

YES: Refer to "DTC DESCRIPTION ".

NO: Refer to "DIAGNOSIS PROCEDURE ".