Infiniti FX35, FX50 (S51). Manual — part 127
AV
U1300 AV COMM CIRCUIT
AV-281
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION (SINGLE MONITOR)]
C
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U1300 AV COMM CIRCUIT
Description
INFOID:0000000005475947
U1300 is indicated when malfunction occurs in communication signal of multi AV system. Indicated simulta-
neously, without fail, with the malfunction of control units connected to AV control unit with communication line.
Determine the possible malfunction cause from the table below.
SELF-DIAGNOSIS RESULTS DISPLAY ITEM
DTC
Display contents of
CONSULT-III
DTC detection condition
Possible malfunction factor
U1300
U1240
• AV COMM CIRCUIT
[U1300]
• SWITCH CONN
[U1240]
When either one of the following items are detected:
• multifunction switch power supply and ground circuits
are malfunctioning.
• AV communication circuits between AV control unit
and multifunction switch are malfunctioning.
• Multifunction switch power supply
and ground circuits.
• AV communication circuits between
AV control unit and multifunction
switch.
U1300
U125B
• AV COMM CIRCUIT
[U1300]
• AROUND CAMERA
CONN [U125B]
When either one of the following items are detected:
• around view monitor control unit power supply and
ground circuits are malfunctioning.
• AV communication circuits between AV control unit
and around view monitor control unit are malfunction-
ing.
• Around view monitor control unit
power supply and ground circuits.
• AV communication circuits between
AV control unit and around view
monitor control unit.
U1300
U125C
• AV COMM CIRCUIT
[U1300]
• SONAR CONN
[U125C]
When either one of the following items are detected:
• sonar control unit power supply and ground circuits are
malfunctioning.
• AV communication circuits between AV control unit
and sonar control unit are malfunctioning.
• Sonar control unit power supply and
ground circuits.
• AV communication circuits between
AV control unit and sonar control
unit.
U1300
U1240
U125B
• AV COMM CIRCUIT
[U1300]
• SWITCH CONN
[U1240]
• AROUND CAMERA
CONN [U125B]
AV communication circuits between AV control unit and
multifunction switch are malfunctioning.
AV communication circuits between AV
control unit and multifunction switch.
AV-282
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION (SINGLE MONITOR)]
U1310 AV CONTROL UNIT
U1310 AV CONTROL UNIT
DTC Logic
INFOID:0000000005475761
DTC
Display contents of
CONSULT-III
DTC detection condition
Possible malfunction factor
U1310
CONTROL UNIT (AV)
[U1310]
An initial diagnosis error is detected in AV communication
circuit.
Replace the AV control unit if the mal-
function occurs constantly.
AV
B2700 CORNER SENSOR [FL]
AV-283
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION (SINGLE MONITOR)]
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B2700 CORNER SENSOR [FL]
DTC Logic
INFOID:0000000005475763
DTC DETECTION LOGIC
DTC No.
CONSULT-III indication
DTC detection condition
Troubleshooting
B2700
CORNER SENSOR [FL]
[B2700]
Corner sensor (FL) is malfunctioning.
Replace corner sensor (FL).
AV-284
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION (SINGLE MONITOR)]
B2701 SENSOR HARNESS OPEN [CR-FL]
B2701 SENSOR HARNESS OPEN [CR-FL]
DTC Logic
INFOID:0000000005475765
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000005475766
1.
CHECK HARNESS CORNER SENSOR (FL) SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect sonar control unit connector and corner sensor (FL) connector.
3.
Check continuity between sonar control unit harness connector and corner sensor (FL) 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 HARNESS CORNER SENSOR (FL) GROUND CIRCUIT
Check continuity between sonar control unit harness connector and corner sensor (FL) harness connector.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
DTC No.
CONSULT-III indication
DTC detection condition
Troubleshooting
B2701
SENSOR HARNESS
OPEN [CR-FL] [B2701]
Corner sensor (FL) harness circuit is open.
Check corner sensor (FL) circuit.
Sonar control unit
Corner sensor (FL)
Continuity
Connector
Terminal
Connector
Terminal
M47
3
E154
1
Existed
Sonar control unit
Ground
Continuity
Connector
Terminal
M47
3
Not existed
Sonar control unit
Corner sensor (FL)
Continuity
Connector
Terminal
Connector
Terminal
M47
12
E154
2
Existed
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