B2419

B2419 OPEN SWITCH

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

1.Turn ignition switch ON.
2.Operate automatic back door.
3.Check "Self Diagnostic Result" mode of "AUTOMATIC BACK DOOR CONTROL UNIT" using CONSULT.
Is DTC detected?
YES- .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK FOR FOREIGN MATERIALS IN BACK DOOR LOCK ASSEMBLY

Check for entry of foreign materials in back door lock assembly.
Is the inspection result normal?
YES- GO TO 2.
NO- Remove foreign materials.

2. CHECK BACK DOOR OPEN/CLOSE OPERATION

Manually check open and close operation of back door.
Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace the malfunctioning parts.

3. CHECK OPEN SWITCH SIGNAL

1.Select "AUTOMATIC BACK DOOR CONTROL UNIT" using CONSULT.
2.Select "OPEN SW" in "DATA MONITOR" mode.
3.Check that the function operates normally according to the following conditions.





Is the inspection result normal?
YES- GO TO 8.
NO- GO TO 4.

4. CHECK OPEN SWITCH INPUT SIGNAL

1.Turn ignition switch OFF.
2.Disconnect back door lock assembly connector.
3.Check voltage between back door lock assembly harness connector and ground.





Is the inspection result normal?
YES- GO TO 6.
NO- GO TO 5.

5. CHECK OPEN SWITCH CIRCUIT

1.Disconnect automatic back door control unit connector.
2.Check continuity between automatic back door control unit harness connector and back door lock assembly 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.

6. CHECK OPEN SWITCH GROUND CIRCUIT

Check continuity between back door lock assembly harness connector and ground.





Is the inspection result normal?
YES- GO TO 7.
NO- Repair or replace harness.

7. CHECK OPEN SWITCH

B2409.
Is the inspection result normal?
YES- GO TO 8.
NO- Replace back door lock assembly.

8. CHECK INTERMITTENT INCIDENT

Intermittent Incident.
- INSPECTION END


Component Inspection


COMPONENT INSPECTION


1. CHECK SWITCH

1.Turn ignition switch OFF.
2.Disconnect back door lock assembly connector.
3.Check continuity between back door lock assembly terminals.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace back door lock assembly.