B2422

B2422 BACK DOOR STATE

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. CALIBRATION OF AUTOMATIC BACK DOOR POSITION INFORMATION

1.Perform initialization setting of automatic back door position information.
Work Procedure.
2.Erase DTC, and then repeat "PERFORM DTC CONFIRMATION PROCEDURE".
Is DTC detected?
YES- GO TO 2.
NO- INSPECTION END

2. CHECK INSTALLATION OF BACK DOOR ASSEMBLY

1.Check that back door assembly is installed normally.
Adjustments.
2.Check back door assembly mechanism deformation, looseness, rattle, interference with other parts, and pinched foreign materials.
Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace the malfunctioning parts.

3. CHECK ENCODER SIGNAL

1.Select "AUTOMATIC BACK DOOR CONTROL UNIT" using CONSULT.
2.Select "SPINDLE SENSOR LH" and "SPINDLE SENSOR RH" in "DATA MONITOR" mode.
3.Check that the function operates normally according to the following conditions.





Is the difference between the 2 monitor items 10 or more?
YES- GO TO 4.
NO- Replace automatic back door control unit. Service and Repair.

4. CHECK ENCODER POWER SUPPLY

1.Turn ignition switch OFF.
2.Disconnect spindle unit connector.
3.Check voltage between spindle unit harness connector and ground.





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

5. CHECK ENCODER CIRCUIT

1.Disconnect automatic back door control unit connector.
2.Check continuity between automatic back door control unit harness connector and spindle unit 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 ENCODER CIRCUIT 2

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





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





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

7. CHECK ENCODER CIRCUIT 3

1.Connect automatic back door control unit and spindle unit connector
2.Check continuity between automatic back door control unit harness connector and ground.





Is the inspection result normal?
YES- GO TO 8.
NO- Replace automatic back door control unit. Service and Repair.

8. CHECK INTERMITTENT INCIDENT

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