Nissan Pathfinder. Manual - part 342

DLK-134

< DTC/CIRCUIT DIAGNOSIS >

B2422 BACK DOOR STATE

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

YES

>> GO TO 4.

NO

>> Replace automatic back door control module. Refer to 

DLK-321, "Removal and Installation"

.

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 module connector.

2. Check continuity between automatic back door control module harness connector and spindle unit har-

ness connector.

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-321, "Removal and Installation"

.

NO

>> Repair or replace harness.

6.

CHECK ENCODER CIRCUIT 2

1. Disconnect automatic back door control module connector.

2. Check continuity between automatic back door control module harness connector and spindle unit har-

ness connector.

Monitor item

Status

SPINDLE SENSOR LH

0 – 65535

SPINDLE SENSOR RH

0 – 65535

(+)

(–)

Voltage

(Approx.)

Spindle unit

Connector

Terminal

LH

B70

8

Ground

Battery voltage

RH

B162

Automatic back door control module

Spindle unit

Continuity 

 Connector

Terminal

 Connector

Terminal

B55

19

LH

B70

8

Yes

20

RH

B162

Automatic back door control module

Ground

Continuity 

 Connector

Terminal

B55

19

No

20

B2422 BACK DOOR STATE

DLK-135

< 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

>> GO TO 7.

NO

>> Repair or replace harness.

7.

CHECK ENCODER CIRCUIT 3

1. Connect automatic back door control module and spindle unit connector

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

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Replace automatic back door control module. Refer to 

DLK-321, "Removal and Installation"

.

8.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-49, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace automatic back door control module. Refer to 

DLK-321, "Removal and Installation"

.

NO

>> Repair or replace the malfunctioning parts.

Automatic back door control module

Spindle unit

Continuity 

 Connector

Terminal

 Connector

Terminal

B55

6

LH

B70

3

Yes

7

10

8

RH

B162

3

9

10

Automatic back door control module

Ground

Continuity 

 Connector

Terminal

B55

6

No

7

8

9

Automatic back door control module

Ground

Voltage

(Approx.)

 Connector

Terminal

B55

21

0 V

DLK-136

< DTC/CIRCUIT DIAGNOSIS >

B2423 AUTOMATIC BACK DOOR MOTOR OPERATION TIME

B2423 AUTOMATIC BACK DOOR MOTOR OPERATION TIME

DTC Logic

INFOID:0000000009175675

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 MODULE” using CON-

SULT.

Is DTC detected?

YES

>> Refer to 

DLK-136, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009175676

Regarding Wiring Diagram information, refer to 

DLK-94, "Wiring Diagram"

.

1.

ERASE DTC

1. At least 180 seconds are passed after automatic back door operation is inhibited.

2. Erase DTC, and then repeat “PERFORM DTC CONFIRMATION PROCEDURE”.
Is DTC detected?

YES

>> GO TO 2.

NO

>> Inspection End.

2.

CHECK SPINDLE MOTOR CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect automatic back door control module and spindle unit connector.

3. Check continuity between automatic back door control module harness connector and spindle unit har-

ness connector.

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

DTC

CONSULT display de-

scription

DTC detecting condition

Possible cause

B2423

ABD MTR TIME OUT

When the automatic back door control module and 
spindle motor operate in the same direction for 180 
seconds or more continuously.

• Spindle motor
• Automatic back door control 

module

• Harness or connector

Automatic back door control module

Spindle unit

Continuity 

 Connector

Terminal

 Connector

Terminal

B56

27

LH

B70

9

Yes

34

2

29

RH

B162

9

36

2

B2423 AUTOMATIC BACK DOOR MOTOR OPERATION TIME

DLK-137

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

Is the inspection result normal?

YES

>> Replace automatic back door control module. Refer to 

DLK-321, "Removal and Installation"

.

NO

>> Repair or replace harness.

Automatic back door control module

Ground

Continuity 

 Connector

Terminal

B56

27

No

29

34

36