Automatic Back Door Warning Buzzer

AUTOMATIC BACK DOOR WARNING BUZZER

Diagnosis Procedure


1. CHECK AUTOMATIC BACK DOOR WARNING BUZZER POWER SUPPLY CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect automatic back door warning buzzer connector.
3.Check voltage between automatic back door warning buzzer harness connector and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- GO TO 2.

2. CHECK AUTOMATIC BACK DOOR WARNING BUZZER OUTPUT SIGNAL CIRCUIT

1.Disconnect automatic back door control unit connector.
2.Check continuity between automatic back door control unit harness connector and automatic back door warning buzzer harness connector.





3.Check continuity between automatic back door control unit harness connector and ground.





Is the inspection result normal?
YES- Replace automatic back door control unit. Service and Repair.
NO- Repair or replace harness.

3. CHECK AUTOMATIC BACK DOOR WARNING BUZZER GROUND CIRCUIT

Check continuity between automatic back door warning buzzer harness connector and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace harness.

4. CHECK AUTOMATIC BACK DOOR WARNING BUZZER

.
Is the inspection result normal?
YES- GO TO 5.
NO- Replace automatic back door warning buzzer.

5. CHECK INTERMITTENT INCIDENT

Intermittent Incident.
- INSPECTION END


Component Inspection


1. CHECK AUTOMATIC BACK DOOR WARNING BUZZER

1.Turn ignition switch OFF.
2.Disconnect automatic back door warning buzzer connector.
3.Check battery power supply directly to automatic back door warning buzzer terminals and check the operation.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace automatic back door warning buzzer.