Infiniti QX56 (Z62). Manual — part 337
DAS
U1516 CAM CAN 3
DAS-385
< DTC/CIRCUIT DIAGNOSIS >
[LDW & LDP]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
U1516 CAM CAN 3
DTC Logic
INFOID:0000000006223819
DTC DETECTION LOGIC
NOTE:
If DTC “U1516” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to
"ADAS CONTROL UNIT : DTC Logic"
.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Turn the LDP system ON.
3.
Perform “All DTC Reading” with CONSULT-III.
4.
Check if the “U1516” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U1516” detected as the current malfunction?
YES
>> Refer to
DAS-385, "Diagnosis Procedure"
NO
>> Refer to
GI-40, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000006223820
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “U1516” in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U1000” detected?
YES
>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.
DAS-374, "ADAS CONTROL UNIT : DTC Logic"
.
NO
>> GO TO 2.
2.
CHECK LANE CAMERA UNIT SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “LANE CAMERA”.
Is any DTC detected?
YES
>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
NO
>> Replace the ADAS control unit. Refer to
DAS-63, "Removal and Installation"
DTC
(On board dis-
play)
Trouble diagnosis name
DTC detecting condition
Possible causes
U1516
(166)
CAM CAN CIRC 3
ADAS control unit detects an error signal that is
received from lane camera unit via ITS com-
munication
Lane camera unit
DAS-386
< DTC/CIRCUIT DIAGNOSIS >
[LDW & LDP]
U1520 4WD CAN 3
U1520 4WD CAN 3
DTC Logic
INFOID:0000000006228220
DTC DETECTION LOGIC
NOTE:
If DTC “U1520” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to
"ADAS CONTROL UNIT : DTC Logic"
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Turn the LDP system ON.
3.
Perform “All DTC Reading” with CONSULT-III.
4.
Check if the “U1520” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U1520” detected as the current malfunction?
YES
>> Refer to
DAS-386, "Diagnosis Procedure"
NO
>> Refer to
GI-40, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000006228221
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “U1520” in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U1000” detected?
YES
>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.
DAS-374, "ADAS CONTROL UNIT : DTC Logic"
.
NO
>> GO TO 2.
2.
CHECK TRANSFER CONTROL UNIT SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “ALL MODE AWD/4WD”.
Is any DTC detected?
YES
>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
.
NO
>> Replace the ADAS control unit. Refer to
DAS-63, "Removal and Installation"
DTC
(On board dis-
play)
Trouble diagnosis name
DTC detecting condition
Possible causes
U1520
(176)
4WD CAN CIRC 3
ADAS control unit detects an error signal that is
received from transfer control unit via CAN
communication
Transfer control unit
DAS
POWER SUPPLY AND GROUND CIRCUIT
DAS-387
< DTC/CIRCUIT DIAGNOSIS >
[LDW & LDP]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
POWER SUPPLY AND GROUND CIRCUIT
ADAS CONTROL UNIT
ADAS CONTROL UNIT : Diagnosis Procedure
INFOID:0000000006223823
1.
CHECK ADAS CONTROL UNIT POWER SUPPLY CIRCUIT
Check voltage between ADAS control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the ADAS control unit power supply circuit.
2.
CHECK ADAS CONTROL UNIT GROUND CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the ADAS control unit connector.
3.
Check for continuity between ADAS control unit harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair the ADAS control unit ground circuit.
LANE CAMERA UNIT
LANE CAMERA UNIT : Diagnosis Procedure
INFOID:0000000006223824
1.
CHECK LANE CAMERA UNIT POWER SUPPLY CIRCUIT
Check voltage between lane camera unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the lane camera unit power supply circuit.
2.
CHECK LANE CAMERA UNIT GROUND CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the lane camera unit connector.
Terminal
Condition
Voltage
(Approx.)
(+)
(–)
ADAS control unit
Ground
Ignition
switch
Connector
Terminal
B61
16
OFF
0 V
ON
Battery volt-
age
ADAS control unit
Ground
Continuity
Connector
Terminal
B61
6
Existed
Terminal
Condition
Voltage
(Approx.)
(+)
(–)
Lane camera unit
Ground
Ignition
switch
Connector
Terminal
R8
7
OFF
0 V
ON
Battery volt-
age
DAS-388
< DTC/CIRCUIT DIAGNOSIS >
[LDW & LDP]
POWER SUPPLY AND GROUND CIRCUIT
3.
Check for continuity between lane camera unit harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair the lane camera unit ground circuit.
Lane camera unit
Ground
Continuity
Connector
Terminal
R8
1
Existed
5
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