Nissan X-Trail 32. Instruction — part 1944
SN-232
< DTC/CIRCUIT DIAGNOSIS >
[WITH PARK ASSIST]
U1010-49 CONTROL UNIT (CAN)
U1010-49 CONTROL UNIT (CAN)
DTC Description
INFOID:0000000010736697
DTC DETECTION LOGIC
POSSIBLE CAUSE
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 2 seconds or more.
4.
Select “Self Diagnostic Result” mode of “SONAR” using CONSULT.
5.
Check DTC.
Is DTC U1010-49 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:0000000010736698
1.
PERFORM DTC CONFIRMATION PROCEDURE AGAIN
With CONSULT
1.
Turn ignition switch ON.
2.
Erase DTC.
3.
Perform DTC confirmation procedure again. Refer to
.
Is DTC U1010-49 detected again?
YES
>> Replace sonar control unit. Refer to
SN-237, "Removal and Installation"
.
NO
>> INSPECTION END
DTC
Trouble diagnosis
(Trouble diagnosis contents)
Detecting condition
U1010-49
CONTROL UNIT (CAN)
[Control unit (CAN)]
Malfunction is detected during initial diagnosis of the sonar control unit CAN con-
troller.
SN
POWER SUPPLY AND GROUND CIRCUIT
SN-233
< DTC/CIRCUIT DIAGNOSIS >
[WITH PARK ASSIST]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
POWER SUPPLY AND GROUND CIRCUIT
SONAR CONTROL UNIT
SONAR CONTROL UNIT : Diagnosis Procedure
INFOID:0000000010736703
1.
CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK IGNITION POWER SUPPLY CIRCUIT
1.
Turn ignition switch ON.
2.
Check the voltage between sonar control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace sonar control unit power supply harness.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect sonar control unit connector.
3.
Check the continuity between sonar control unit harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace sonar control unit ground harness.
Power source
Fuse No.
Ignition switch ON or START
#30
Terminals
Condition
Standard
Reference value
(+)
(
−
)
Sonar control unit
Connector
Terminal
B129
14
Ground
Ignition switch ON
9.0 - 16.0 V
Battery voltage
Sonar control unit
Ground
Continuity
Connector
Terminal
B128
13
Existed
SN-234
< DTC/CIRCUIT DIAGNOSIS >
[WITH PARK ASSIST]
SONAR SYSTEM SWITCH CIRCUIT
SONAR SYSTEM SWITCH CIRCUIT
Description
INFOID:0000000010828083
The sonar control unit turns the sonar system activation OFF when inputting the sonar system switch signal.
Diagnosis Procedure
INFOID:0000000010828084
1.
CHECK HARNESS SONAR SYSTEM SWITCH SIGNAL CIRCUIT
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 sonar system switch harness con-
nector.
4.
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 HARNESS SONAR SYSTEM SWITCH GROUND CIRCUIT
Check the continuity between sonar system switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK VOLTAGE SONAR CONTROL UNIT
1.
Connect sonar control unit harness connector and sonar system switch harness connector.
2.
Turn ignition switch ON.
3.
Check the voltage between sonar control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace sonar system switch. Refer to
SN-238, "Removal and Installation"
.
NO
>> Replace sonar control unit. Refer to
SN-237, "Removal and Installation"
.
Sonar control unit
Sonar system switch
Continuity
Connector
Terminal
Connector
Terminal
B128
16
M142
16
Existed
Sonar control unit
Ground
Continuity
Connector
Terminal
B128
16
Not existed
Sonar system switch
Ground
Continuity
Connector
Terminal
M142
2
Existed
(+)
(
−
)
Voltage
(Approx.)
Sonar control unit
Connector
Terminal
B128
16
Ground
12.0 V
SN
SONAR SYSTEM SYMPTOMS
SN-235
< SYMPTOM DIAGNOSIS >
[WITH PARK ASSIST]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
SYMPTOM DIAGNOSIS
SONAR SYSTEM SYMPTOMS
Symptom Table
INFOID:0000000010792966
Symptom
Check item
Diagnosis method
All sonar sensors do not acti-
vate.
—
Check sonar control unit power supply and ground
circuit.
Refer to
SN-233, "SONAR CONTROL UNIT : Di-
.
When there is no malfunction in those compo-
nents, replace the sonar control unit.
Refer to
SN-237, "Removal and Installation"
Front sonar sensors do not ac-
tivate.
Buzzer does not
beeps when indicating
“On” on “FRONT
BUZZER” screen of
the ACTIVE TEST.
Refer to
Buzzer is beeped.
Check front sensor ground circuit.
Refer to
Buzzer is not
beeped.
Check front buzzer drive signal circuit.
Refer to
Rear sonar sensors do not ac-
tivate.
Buzzer does not
beeps when indicating
“On” on “REAR BUZZ-
ER” screen of the AC-
TIVE TEST.
Refer to
Buzzer is beeped.
Check rear sensor ground circuit.
Refer to
Buzzer is not
beeped.
Check front rear buzzer drive signal circuit.
Refer to
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