Diagnosis Procedure

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

1. CHECK SELF-DIAGNOSIS RESULTS
   
   

   Check if any DTC other than "C1B20" is detected in "Self Diagnostic Result" of "BSW/BUZZER".

   Is any DTC detected?

   YES 

   Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to DTC INDEX .

   NO 

   GO TO STEP 2  .

2. CHECK WARNING BUZZER SIGNAL CIRCUIT FOR OPEN
   
   
   1. Turn ignition switch OFF.
   2. Disconnect the warning buzzer connector.
   3. Disconnect the driver assistance buzzer control module connector.
   4. Check continuity between the driver assistance buzzer control module harness connector and warning buzzer harness connector.

      Driver assistance buzzer control module		Warning buzzer		Continuity
      Connector	Terminal	Connector	Terminal
      M198	12	M199	1	Yes
      	24		2

   Is the inspection result normal?

   YES 

   GO TO STEP 3  .

   NO 

   Repair the harnesses or connectors.

3. CHECK WARNING BUZZER SIGNAL CIRCUIT FOR SHORT
   
   

   Check continuity between the driver assistance buzzer control module harness connector and ground.

   Driver assistance buzzer control module		Ground	Continuity
   Connector	Terminal
   M198	12		No
   	24

   Is the inspection result normal?

   YES 

   GO TO STEP 4  .

   NO 

   Repair the harnesses or connectors.

4. CHECK WARNING BUZZER
   
   

   Check warning buzzer. Refer to COMPONENT INSPECTION .

   Is the inspection result normal?

   YES 

   Replace the driver assistance buzzer control module. Refer to REMOVAL AND INSTALLATION .

   NO 

   Replace the warning buzzer. Refer to REMOVAL AND INSTALLATION .