Nissan X-Trail 32. Manual — part 1903
SN-68
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT PARK ASSIST]
B2725-12 REAR BUZZER
B2725-12 REAR BUZZER
DTC Description
INFOID:0000000010919356
DTC DETECTION LOGIC
POSSIBLE CAUSE
Harness between sonar control unit and buzzer (backward)
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 “B2725-12” 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:0000000010919357
1.
CHECK BUZZER (BACKWARD) POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect sonar control unit connector and buzzer (backward) connector.
3.
Turn ignition switch ON.
4.
Check voltage between sonar control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK BUZZER DRIVE SIGNAL CIRCUIT
Check voltage between sonar control unit harness connector and ground.
DTC
Trouble diagnosis
(Trouble diagnosis contents)
Detection condition
B2725-12
REAR BUZZER
(Rear buzzer)
SHORT-BAT
(Short to battery)
A short circuit is detected in harness between sonar control unit and
buzzer (backward) with an obstacle detected.
Sonar control unit
Ground
Reference value
(Approx.)
Connector
Terminal
B101
19
0 V
SN
B2725-12 REAR BUZZER
SN-69
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT PARK ASSIST]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
Is the inspection result normal?
YES
>> Replace buzzer (backward). Refer to
SN-116, "REAR : Removal and Installation"
NO
>> Repair harness or connector.
Sonar control unit
Ground
Standard
Reference value
(Approx.)
Connector
Terminal
B101
20
—
NOTE:
• Voltage depends on volume.
• Cycle depends on distance between sensor
and obstacle.
JSNIA5232GB
SN-70
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT PARK ASSIST]
B2725-14 REAR BUZZER
B2725-14 REAR BUZZER
DTC Description
INFOID:0000000010919358
DTC DETECTION LOGIC
POSSIBLE CAUSE
Harness between sonar control unit and buzzer (backward)
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 “B2725-14” 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:0000000010919359
1.
CHECK CONTINUITY BUZZER (BACKWARD) POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect sonar control unit connector and buzzer (backward) connector.
3.
Check continuity between sonar control unit harness connector and buzzer (backward) harness connec-
tor.
4.
Check 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 CONTINUITY BUZZER DRIVE SIGNAL CIRCUIT
DTC
Trouble diagnosis
(Trouble diagnosis contents)
Detection condition
B2725-14
REAR BUZZER
(Rear buzzer)
OPEN/SHORT-
GND
(Open/Short to
ground)
A break in harness between sonar control unit and buzzer (back-
ward) or a short circuit between sonar control unit and ground is de-
tected when ignition switch is turned ON.
Sonar control unit
Buzzer (backward)
Continuity
Connector
Terminal
Connector
Terminal
B101
19
B66
2
Existed
Sonar control unit
Ground
Continuity
Connector
Terminal
B101
19
Not existed
SN
B2725-14 REAR BUZZER
SN-71
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT PARK ASSIST]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
1.
Check continuity between sonar control unit harness connector and buzzer (backward) harness connec-
tor.
2.
Check continuity between sonar control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK CONTINUITY SONAR CONTROL UNIT
1.
Check continuity between terminals of sonar control unit.
2.
Check continuity between sonar control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace buzzer (backward). Refer to
SN-116, "REAR : Removal and Installation"
NO
>> Replace sonar control unit. Refer to
SN-111, "Removal and Installation"
Sonar control unit
Buzzer (backward)
Continuity
Connector
Terminal
Connector
Terminal
B101
20
B66
3
Existed
Sonar control unit
Ground
Continuity
Connector
Terminal
B101
20
Not existed
Sonar control unit
Continuity.
Terminal
19
20
Not existed
Sonar control unit
Ground
Continuity
Terminal
19
Not existed
20
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