Nissan X-Trail 32. Manual - part 531

B2622 INSIDE ANTENNA

DLK-465

< DTC/CIRCUIT DIAGNOSIS >

[TYPE 2]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK INSIDE KEY ANTENNA INPUT SIGNAL 2

1.

Replace inside key antenna (luggage room). (New antenna or other antenna)

2.

Connect BCM connector and inside key antenna (luggage room) connector.

3.

Turn ignition switch ON.

4.

Check signal between BCM harness connector and ground using oscilloscope.

Is the inspection result normal?

YES

>> Replace inside key antenna (luggage room).

NO

>> Replace BCM. Refer to 

BCS-121, "Removal and Installation"

.

(+)

(–)

Condition

Signal

(Reference value)

BCM

Connector

Terminal

B47

22

Ground

Ignition switch 
ON and any 
door is open

When Intelli-
gent Key is not 
in the antenna 
detection area

When Intelli-
gent Key is in 
the antenna 
detection area

23

When Intelli-
gent Key is not 
in the antenna 
detection area

When Intelli-
gent Key is in 
the antenna 
detection area

JMMIA1652GB

JMMIA1653GB

JSMIA1507GB

JSMIA1506GB

DLK-466

< DTC/CIRCUIT DIAGNOSIS >

[TYPE 2]

U1000 CAN COMM CIRCUIT

U1000 CAN COMM CIRCUIT

DTC Description

INFOID:0000000010717509

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control unit, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with 2 communication lines (CAN H-line, CAN L-line) allowing a high rate of information transmission with less
wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart. Refer to 

LAN-41, "CAN COMMUNICATION SYSTEM : CAN Communica-

tion Signal Chart"

.

DTC DETECTION LOGIC

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

Inhibit automatic back door operation

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn the ignition switch OFF.

2.

Turn the ignition switch ON and wait for 2 seconds or more.

3.

Check “Self Diagnostic Result” of “AUTO BACK DOOR”.

s DTC “U1000” displayed?

YES

>> Refer to 

DLK-466, "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:0000000010717510

1.

PERFORM SELF DIAGNOSTIC

1.

Turn the ignition switch OFF.

2.

Turn the ignition switch ON and wait for 2 seconds or more.

3.

Check “Self Diagnostic Result” of “AUTO BACK DOOR”.

s DTC “U1000” displayed?

YES

>> Refer to 

LAN-17, "Trouble Diagnosis Flow Chart"

.

NO

>> Refer to 

GI-44, "Intermittent Incident"

.

DTC No.

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

U1000

CAN COMM

(CAN communication)

When automatic back door control unit cannot communicate CAN com-
munication signal continuously for 2 seconds or more.

U1010 CONTROL UNIT (CAN)

DLK-467

< DTC/CIRCUIT DIAGNOSIS >

[TYPE 2]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

U1010 CONTROL UNIT (CAN)

DTC Description

INFOID:0000000010717511

DTC DETECTION LOGIC

POSSIBLE CAUSE

Automatic back door control unit

FAIL-SAFE

Inhibit automatic back door operation

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn the ignition switch OFF.

2.

Turn the ignition switch ON and wait for 2 seconds or more.

3.

Check “Self Diagnostic Result” of “AUTO BACK DOOR”.

s DTC “U1000” displayed?

YES

>> Refer to 

DLK-467, "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:0000000010717512

1.

REPLACE AUTOMATIC BACK DOOR CONTROL UNIT

When DTC U1010 is detected, replace automatic back door control unit.

>> Replace automatic back door control unit. Refer to 

DLK-633, "Removal and Installation"

.

DTC No.

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

U1010

CONTROL UNIT (CAN)

[Control unit (CAN)]

Automatic back door control unit detected internal CAN communica-
tion circuit malfunction

DLK-468

< DTC/CIRCUIT DIAGNOSIS >

[TYPE 2]

AUTOMATIC BACK DOOR CLOSE SWITCH

AUTOMATIC BACK DOOR CLOSE SWITCH

Component Function Check

INFOID:0000000010717513

1.

CHECK FUNCTION

1.

Turn ignition switch ON.

2.

Select “AUTO BACK DOOR” using CONSULT.

3.

Select “BK DOOR CL SW” in “DATA MONITOR” mode.

4.

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

Is the inspection result normal?

YES

>> Automatic back door close switch is OK.

NO

>> Refer to 

DLK-468, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010717514

1.

CHECK AUTOMATIC BACK DOOR CLOSE SWITCH INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect automatic back door close switch connector.

3.

Check voltage between automatic back door close switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK AUTOMATIC BACK DOOR CLOSE SWITCH CIRCUIT

1.

Disconnect automatic back door control unit connector.

2.

Check continuity between automatic back door control unit harness connector and automatic back door
close switch 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-633, "Removal and Installation"

.

NO

>> Repair or replace harness.

3.

CHECK AUTOMATIC BACK DOOR CLOSE SWITCH GROUND CIRCUIT

Check continuity between automatic back door close switch harness connector and ground.

Monitor item

Condition

Status

 BK DOOR CL SW

Automatic back door close switch

Pressed

ON

Released

OFF

(+)

(–)

Voltage

(Approx.)

Automatic back door close switch

Connector

Terminal

D173

1

Ground

12.6 V

Automatic back door control unit

 Automatic back door close switch 

Continuity

 Connector

Terminal

Connector

Terminal

B24

23

D173

1

Existed

Automatic back door control unit

Ground

Continuity 

Connector

Terminal

B24

23

Not existed