Nissan X-Trail 32. Manual — part 1933
SN-188
< DTC/CIRCUIT DIAGNOSIS >
[WITH PARK ASSIST]
B2728-12 LED
B2728-12 LED
DTC Description
INFOID:0000000011009385
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Harness between sonar control unit and sonar system switch
• Sonar control unit
FAIL-SAFE
• Obstacle detection function is stopped
• Alarm display is displayed on the information display of combination meter
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1.
Turn ignition switch ON.
2.
Turn ignition switch OFF and wait at least 30 seconds.
3.
Turn ignition switch ON and wait at least 30 seconds or more.
4.
Select “Self Diagnostic Result” mode of “SONAR” using CONSULT.
5.
Check DTC.
Is DTC B2728-12 detected?
YES
>> Proceed to
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
.
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000011009386
1.
CHECK SONAR SYSTEM SWITCH INDICATOR SIGNAL CIRCUIT FOR SHORT
1.
Turn ignition switch OFF.
2.
Disconnect sonar control unit harness connector and sonar system switch harness connector.
3.
Check the voltage between sonar control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace sonar control unit. Refer to
SN-237, "Removal and Installation"
.
NO
>> Repair harness or connector.
DTC
Trouble diagnosis
(Trouble diagnosis contents)
Detection condition
B2728-12
LED
(Light emitting diode)
SHORT-BAT
(Short to battery)
Short circuit to battery is detected in harness between sonar control
unit and sonar system switch when ignition switch is turned ON.
Terminals
Voltage
(Approx.)
(+)
(
−
)
Sonar control unit
Connector
Terminal
B129
17
Ground
0 V
SN
B2728-14 LED
SN-189
< DTC/CIRCUIT DIAGNOSIS >
[WITH PARK ASSIST]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
B2728-14 LED
DTC Description
INFOID:0000000011009387
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Harness between sonar control unit and sonar system switch
• Sonar control unit
• Sonar system switch
FAIL-SAFE
• Obstacle detection function is stopped
• Alarm display is displayed on the information display of combination meter
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1.
Turn ignition switch ON.
2.
Turn ignition switch OFF and wait at least 30 seconds.
3.
Turn ignition switch ON and wait at least 30 seconds or more.
4.
Select “Self Diagnostic Result” mode of “SONAR” using CONSULT.
5.
Check DTC.
Is DTC B2728-14 detected?
YES
>> Proceed to
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000011009388
1.
CHECK SONAR SYSTEM SWITCH INDICATOR SIGNAL CIRCUIT FOR SHORT
1.
Turn ignition switch OFF.
2.
Disconnect sonar control unit harness connector and sonar system switch harness connector.
3.
Check the continuity between sonar control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK SONAR SYSTEM SWITCH INDICATOR SIGNAL CIRCUIT FOR OPEN
Check the continuity between sonar control unit harness connector and sonar system switch harness connec-
tor.
DTC
Trouble diagnosis
(Trouble diagnosis contents)
Detection condition
B2728-14
LED
(Light emitting diode)
OPEN/SHORT-
GND
(open/short to
ground)
Short circuit to ground or open circuit is detected in harness be-
tween sonar control unit and sonar system switch when ignition
switch is turned ON.
Sonar control unit
Ground
Continuity
Connector
Terminal
B129
17
Not existed
Sonar control unit
Sonar system switch
Continuity
Connector
Terminal
Connector
Terminal
B129
17
M142
5
Existed
SN-190
< DTC/CIRCUIT DIAGNOSIS >
[WITH PARK ASSIST]
B2728-14 LED
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK SONAR SYSTEM SWITCH INDICATOR SIGNAL GROUND CIRCUIT
Check the continuity between sonar system switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK SONAR SYSTEM SWITCH
Check the sonar system switch. Refer to
SN-190, "Component Inspection"
Is the inspection result normal?
YES
>> Replace sonar control unit. Refer to
SN-237, "Removal and Installation"
.
NO
>> Replace sonar system switch. Refer to
SN-238, "Removal and Installation"
.
Component Inspection
INFOID:0000000011009618
1.
CHECK SONAR SYSTEM SWITCH (1)
1.
Turn ignition switch OFF.
2.
Remove sonar system switch. Refer to
SN-112, "Removal and Installation"
3.
Check the continuity between sonar system switch terminals.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace sonar system switch. Refer to
SN-112, "Removal and Installation"
.
2.
CHECK SONAR SYSTEM SWITCH (2)
Check the continuity between sonar system switch terminals as per the following condition.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace sonar system switch. Refer to
SN-112, "Removal and Installation"
.
Sonar system switch
Ground
Continuity
Connector
Terminal
M142
6
Existed
Sonar system switch
Continuity
Terminals
(+)
(
−
)
Terminal
5
6
Existed
Sonar system switch
Condition
Continuity
Terminal
1
2
Sonar sys-
tem switch
Press
Existed
Except for
above
Not existed
SN
B2729-12 CORNER SENSOR [FL]
SN-191
< DTC/CIRCUIT DIAGNOSIS >
[WITH PARK ASSIST]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
B2729-12 CORNER SENSOR [FL]
DTC Description
INFOID:0000000010736679
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Harness or connectors (Corner sensor front LH circuit)
• Corner sensor front LH
FAIL-SAFE
• Obstacle detection function is stopped
• Alarm display is displayed on the information display of combination meter
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1.
Turn ignition switch ON.
2.
Turn ignition switch OFF and wait at least 30 seconds.
3.
Turn ignition switch ON and wait at least 30 seconds or more.
4.
Select “Self Diagnostic Result” mode of “SONAR” using CONSULT.
5.
Check DTC.
Is DTC B2729-12 detected?
YES
>> Proceed to
.
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010736680
1.
CHECK CORNER SENSOR SIGNAL FRONT LH CIRCUIT FOR SHORT (1)
1.
Turn ignition switch OFF.
2.
Disconnect sonar control unit harness connector and corner sensor front LH harness connector.
3.
Turn ignition switch ON.
4.
Check the voltage between sonar control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace malfunctioning parts.
2.
CHECK CORNER SENSOR SIGNAL FRONT LH CIRCUIT FOR SHORT (2)
Check the continuity between corner sensor front LH harness connector ground.
DTC
Trouble diagnosis
(Trouble diagnosis contents)
Detecting condition
B2729-12
CORNER SENSOR [FL]
(Corner sensor front-left)
SHORT-BAT
(Short to battery)
Short circuit to power supply is detected in harness between sonar
control unit and corner sensor front LH when ignition switch is
turned ON.
Terminals
Voltage
(Approx.)
(+)
(
−
)
Sonar control unit
Connector
Terminal
B128
37
Ground
0 V
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