Nissan X-Trail 32. Manual - part 448

B2420 CLOSE SWITCH

DLK-133

< DTC/CIRCUIT DIAGNOSIS >

[TYPE 1]

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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 CLOSE 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 assem-
bly 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. Refer to 

DLK-327, "Removal and Installation"

.

NO

>> Repair or replace harness.

6.

CHECK CLOSE 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 INTERMITTENT INCIDENT

Refer to 

GI-44, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace harness.

8.

REPLACE BACK DOOR LOCK ASSEMBLY

1.

Replace back door lock assembly. Refer to 

DLK-312, "DOOR LOCK : Removal and Installation"

.

2.

Erase DTC.

3.

Perform DTC CONFIRMATION PROCEDURE for DTC 2420.
Refer to 

DLK-132, "DTC Description"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace automatic back door control unit. Refer to 

DLK-327, "Removal and Installation"

.

(+)

(–)

Voltage

(Approx.)

Back door lock assembly

Connector

Terminal

D172

5

Ground

12.2 V

Automatic back door control unit

Back door lock assembly

Continuity 

 Connector

Terminal

 Connector

Terminal

B24

5

D172

5

Existed

Automatic back door control unit

Ground

Continuity 

 Connector

Terminal

B24

5

Not existed

Back door lock assembly

Ground

Continuity 

 Connector

Terminal

D172

8

Existed

DLK-134

< DTC/CIRCUIT DIAGNOSIS >

[TYPE 1]

B2422 BACK DOOR STATE

B2422 BACK DOOR STATE

DTC Description

INFOID:0000000010708089

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Improper installation of back door assembly
• [CALIBRATION OF AUTOMATIC BACK DOOR POSITION INFORMATION]: not complete
• Back door mechanism
• Encoder
• Harness or connectors (encoder circuit is open or shorted)
• Automatic back door control unit

FAIL-SAFE

Inhibit automatic back door operation

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 “AUTO BACK DOOR” using CONSULT.

Is DTC detected?

YES

>> Refer to 

DLK-134, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010708090

1.

CALIBRATION OF AUTOMATIC BACK DOOR POSITION INFORMATION

1.

Perform initialization setting of automatic back door position information.
Refer to 

DLK-117, "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.
Refer to 

DLK-293, "BACK DOOR ASSEMBLY : Adjustment"

.

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.

Turn ignition switch ON.

2.

Select “AUTO BACK DOOR” using CONSULT.

3.

Select “SPINDLE SENSOR LH” and “SPINDLE SENSOR RH” in “DATA MONITOR” mode.

4.

Check that the function operates normally according to the following conditions.

DTC No.

CONSULT screen items (Trou-

ble diagnosis content)

DTC detecting condition

B2422

BACK DOOR STATE

(Back door state)

When the automatic back door control unit detects back door position mal-
function according to the pulse signal

B2422 BACK DOOR STATE

DLK-135

< DTC/CIRCUIT DIAGNOSIS >

[TYPE 1]

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Is the difference between the 2 monitor items 10 or more?

YES

>> GO TO 7.

NO

>> GO TO 4.

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. Refer to 

DLK-327, "Removal and Installation"

.

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.

Monitor item

Status

SPINDLE SENSOR LH

0 – 1000

SPINDLE SENSOR RH

0 – 1000

(+)

(–)

Voltage

(Approx.)

Spindle unit

Connector

Terminal

LH

B38

3

Ground

12.7 V

RH

B29

12.3 V

Automatic back door control unit

Spindle unit

Continuity 

 Connector

Terminal

 Connector

Terminal

B24

19

LH

B38

3

Existed

20

RH

B29

Automatic back door control unit

Ground

Continuity 

 Connector

Terminal

B24

19

Not existed

20

Automatic back door control unit

Spindle unit

Continuity 

 Connector

Terminal

 Connector

Terminal

B24

21

LH

B38

6

Existed

RH

B29

DLK-136

< DTC/CIRCUIT DIAGNOSIS >

[TYPE 1]

B2422 BACK DOOR STATE

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace harness.

7.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-44, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace automatic back door control unit. Refer to 

DLK-327, "Removal and Installation"

.

NO

>> Repair or replace the malfunctioning parts.

Automatic back door control unit

Ground

Continuity 

 Connector

Terminal

B24

21

Not existed