Nissan Quest E52. Instruction — part 164
AV
U1000 CAN COMM CIRCUIT
AV-535
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
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U1000 CAN COMM CIRCUIT
AV CONTROL UNIT
AV CONTROL UNIT : Description
INFOID:0000000009652303
CAN (Controller Area Network) is a serial communication line for real-time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independently). In CAN communication, control units are connected with 2
communication lines (CAN-H, CAN-L) 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-32, "CAN COMMUNICATION SYSTEM : CAN Communica-
AV CONTROL UNIT : DTC Logic
INFOID:0000000009652304
DTC DETECTION LOGIC
AV CONTROL UNIT : Diagnosis Procedure
INFOID:0000000009652305
1.
PERFORM SELF-DIAGNOSTIC
1.
Turn ignition switch ON and wait for 2 seconds or more.
2.
Check “Self Diagnostic Result” of “MULTI AV”.
Is “CAN COMM CIRCUIT” displayed?
YES
>> Refer to
LAN-17, "Trouble Diagnosis Procedure"
.
NO
>> Refer to
GI-42, "Intermittent Incident"
.
AROUND VIEW MONITOR CONTROL UNIT
AROUND VIEW MONITOR CONTROL UNIT : Description
INFOID:0000000009942952
CAN (Controller Area Network) is a serial communication line for real-time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independently). In CAN communication, control units are connected with 2
communication lines (CAN-H, CAN-L) 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-32, "CAN COMMUNICATION SYSTEM : CAN Communica-
AROUND VIEW MONITOR CONTROL UNIT : DTC Logic
INFOID:0000000009942953
DTC DETECTION LOGIC
AROUND VIEW MONITOR CONTROL UNIT : Diagnosis Procedure
INFOID:0000000009942954
1.
PERFORM SELF-DIAGNOSTIC
DTC
Display contents of CON-
SULT
DTC detection condition
Probable malfunction location
U1000
CAN COMM CIRCUIT
[U1000]
AV control unit is not transmitting or receiving
CAN communication signal for 2 seconds or
more.
CAN communication system.
DTC
Display contents of CON-
SULT
DTC detection condition
Probable malfunction location
U1000
CAN COMM CIRCUIT
[U1000]
Around view monitor control unit is not trans-
mitting or receiving CAN communication signal
for 2 seconds or more.
CAN communication system.
AV-536
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
U1000 CAN COMM CIRCUIT
1.
Turn ignition switch ON and wait for 2 seconds or more.
2.
Check “Self Diagnostic Result” of “AVM”.
Is “CAN COMM CIRCUIT” displayed?
YES
>> Refer to
LAN-17, "Trouble Diagnosis Flow Chart"
NO
>> Refer to
GI-42, "Intermittent Incident"
.
AV
U1010 CONTROL UNIT (CAN)
AV-537
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
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U1010 CONTROL UNIT (CAN)
AV CONTROL UNIT
AV CONTROL UNIT : DTC Logic
INFOID:0000000009652309
DTC DETECTION LOGIC
AROUND VIEW MONITOR CONTROL UNIT
AROUND VIEW MONITOR CONTROL UNIT : DTC Logic
INFOID:0000000009942955
DTC DETECTION LOGIC
DTC
Display contents of CON-
SULT
DTC detection condition
Probable malfunction factor
U1010
CONTROL UNIT (CAN)
[U1010]
CAN initial diagnosis malfunction is detected.
Replace the AV control unit if the malfunction
occurs constantly.
Refer to
AV-610, "Removal and Installation"
DTC
Display contents of CON-
SULT
DTC detection condition
Probable malfunction factor
U1010
CONTROL UNIT (CAN)
[U1010]
CAN initial diagnosis malfunction is detected.
Replace the around view monitor control unit
if the malfunction occurs constantly.
Refer to
AV-538
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
U111A REAR CAMERA IMAGE SIGNAL CIRCUIT
U111A REAR CAMERA IMAGE SIGNAL CIRCUIT
DTC Logic
INFOID:0000000009942956
Diagnosis Procedure
INFOID:0000000009942957
1.
CHECK CONTINUITY REAR CAMERA POWER SUPPLY AND GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect around view monitor control unit connector and rear camera connector.
3.
Check continuity between around view monitor control unit harness connector and rear camera harness
connector.
4.
Check continuity between around view monitor control unit harness connector and ground.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK VOLTAGE REAR CAMERA POWER SUPPLY
1.
Connect around view monitor control unit connector and rear camera connector.
2.
Turn ignition switch ON.
3.
Check voltage between around view monitor control unit harness connector and ground.
Is inspection result normal?
YES
>> GO TO 3.
NO
>> Replace around view monitor control unit. Refer to
AV-631, "Removal and Installation"
3.
CHECK CONTINUITY REAR CAMERA IMAGE SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect around view monitor control unit connector and rear camera connector.
3.
Check continuity between around view monitor control unit harness connector and rear camera harness
connector.
DTC
Display contents of
CONSULT
DTC detection condition
Possible malfunction factor
U111A
REAR CAMERA IMAGE
SIGNAL
Rear camera image signal circuit is open or shorted.
Check rear camera image signal cir-
cuit between rear camera and around
view monitor control unit.
Around view monitor control
unit
Rear camera
Continuity
Connector
Terminals
Connector
Terminals
M253
26
D197
1
Existed
25
2
Around view monitor control
unit
Ground
Continuity
Connector
Terminal
M253
26
Not existed
(+)
(
−
)
Condition
Voltage
(Approx.)
Around view monitor control
unit
Connector
Terminal
M253
26
Ground
“CAMERA” switch is ON or
shift position is “R”.
6.2 V
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