Nissan Quest E52. Manual - part 368

DLK-186

< DTC/CIRCUIT DIAGNOSIS >

B2403 ENCODER

2.

Check continuity between sliding door control unit RH harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

CHECK ENCODER CIRCUIT 3

1.

Connect sliding door control unit RH connector and automatic sliding door unit RH connector.

2.

Check voltage between sliding door control unit RH harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace sliding door control unit RH. Refer to 

DLK-500, "RH : Removal and Installation"

.

6.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-42, "Intermittent Incident"

.

>> INSPECTION END

Sliding door control unit RH

Automatic sliding door unit RH

Continuity 

Connector

Terminal

Connector

Terminal

B247

26

B244

8

Existed

Sliding door control unit RH

Ground

Continuity 

Connector

Terminal

B247

26

Not existed

(+)

(–)

Voltage

Sliding door control unit RH

Connector

Terminal

B247

26

Ground

0 V

B2405 SLIDING DOOR CONTROL UNIT

DLK-187

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

B2405 SLIDING DOOR CONTROL UNIT

SLIDING DOOR LH

SLIDING DOOR LH : DTC Logic

INFOID:0000000009649078

DTC DETECTION LOGIC

SLIDING DOOR LH : Diagnosis Procedure

INFOID:0000000009649079

1.

REPLACE SLIDING DOOR CONTROL UNIT

When DTC [B2405] is detected, replace sliding door control unit LH.

>> Replace sliding door control unit. Refer to 

DLK-500, "LH : Removal and Installation"

.

SLIDING DOOR RH

SLIDING DOOR RH : DTC Logic

INFOID:0000000009649080

DTC DETECTION LOGIC

SLIDING DOOR RH : Diagnosis Procedure

INFOID:0000000009649081

1.

REPLACE SLIDING DOOR CONTROL UNIT

When DTC [B2405] is detected, replace sliding door control unit RH.

>> Replace sliding door control unit. Refer to 

DLK-500, "RH : Removal and Installation"

.

DTC

CONSULT display 

description

DTC detecting condition

Possible cause

B2405

ECU FAIL

Sliding door control unit detected CPU malfunction

Sliding door control unit

DTC

CONSULT display 

description

DTC detecting condition

Possible cause

B2405

ECU FAIL

Sliding door control unit detected CPU malfunction

Sliding door control unit

DLK-188

< DTC/CIRCUIT DIAGNOSIS >

B2409 HALF LATCH SWITCH

B2409 HALF LATCH SWITCH

AUTOMATIC BACK DOOR CONTROL MODULE

AUTOMATIC BACK DOOR CONTROL MODULE : DTC Logic

INFOID:0000000009649082

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Operate automatic back door function.

3.

Check “Self Diagnostic Result” mode of “AUTO BACK DOOR” using CONSULT.

Is DTC detected?

YES

>> Refer to 

DLK-188, "AUTOMATIC BACK DOOR CONTROL MODULE : Diagnosis Procedure"

.

NO

>> INSPECTION END

AUTOMATIC BACK DOOR CONTROL MODULE : Diagnosis Procedure

INFOID:0000000009649083

1.

CHECK HALF LATCH SWITCH SIGNAL

1.

Select “AUTO BACK DOOR” using CONSULT.

2.

Select “HALF LATCH 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 6.

NO

>> GO TO 2.

2.

CHECK HALF LATCH 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 4.

NO

>> GO TO 3.

3.

CHECK HALF LATCH SWITCH CIRCUIT

1.

Disconnect automatic back door control module connector.

2.

Check continuity between automatic back door control module harness connector and back door lock
assembly harness connector.

DTC

CONSULT display 

description

DTC detecting condition

Possible cause

B2409

HALF LATCH SW

When the automatic back door control unit can not 
detects the half latch switch ON condition even 
when the back door is in the open position 

• Half latch switch 
• Harness or connectors

(Half latch switch circuit is open)

• Automatic back door control mod-

ule

Monitor item

Condition

Status

HALF LATCH SW

Back door

Fully closed/Half latch

OFF

Open

ON

(+)

(–)

Voltage

Back door lock assembly

Connector

Terminal

D190

6

Ground

9 - 16 V

B2409 HALF LATCH SWITCH

DLK-189

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

3.

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

Is the inspection result normal?

YES

>> Replace automatic back door control module. Refer to 

DLK-495, "Removal and Installation"

.

NO

>> Repair or replace harness.

4.

CHECK HALF LATCH SWITCH GROUND CIRCUIT

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace back door lock assembly ground circuit.

5.

CHECK HALF LATCH SWITCH

Refer to 

DLK-189, "AUTOMATIC BACK DOOR CONTROL MODULE : Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace back door lock assembly.

6.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-42, "Intermittent Incident"

.

>> INSPECTION END

AUTOMATIC BACK DOOR CONTROL MODULE : Component Inspection

INFOID:0000000009649084

1.

CHECK HALF LATCH 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.

SLIDING DOOR LH

SLIDING DOOR LH : DTC Logic

INFOID:0000000009649085

DTC DETECTION LOGIC

Automatic back door control module

Back door lock assembly

Continuity 

 Connector

Terminal

 Connector

Terminal

B8

22

D190

6

Existed

Automatic back door control module

Ground

Continuity 

 Connector

Terminal

B8

22

Not existed

Back door lock assembly

Ground

Continuity 

 Connector

Terminal

D190

8

Existed

Back door lock assembly

Condition

Continuity

Terminal

6

8

Back door lock

Open

Existed

Fully closed/Half latch

Not existed