Nissan X-Trail 32. Instruction — 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-
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
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