Infiniti QX56 (Z62). Manual — part 74
AV-150
< DTC/CIRCUIT DIAGNOSIS >
U1265 BOSE AMP.
U1265 BOSE AMP.
DTC Logic
INFOID:0000000006216303
Diagnosis Procedure
INFOID:0000000006216304
1.
CHECK CONTINUITY BETWEEN AV CONTROL UNIT AND BOSE AMP.
1.
Turn ignition switch OFF.
2.
Disconnect BOSE amp. connector and AV control unit connector.
3.
Check continuity between AV control unit harness connector and BOSE amp. harness connector.
4.
Check continuity between AV control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK VOLTAGE AV CONTROL UNIT
1.
Connect AV control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between AV control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace BOSE amp. Refer to
AV-223, "Removal and Installation"
NO
>> Replace AV control unit. Refer to
AV-212, "Removal and Installation"
.
DTC
Display contents of
CONSULT-III
DTC detection condition
Possible malfunction factor
U1265
AMP ON TERMINAL
[U1265]
BOSE amp. ON signal circuit is open or shorted.
Check BOSE amp. ON signal circuit
between the AV control unit and
BOSE amp.
AV control unit
BOSE amp.
Continuity
Connector
Terminals
Connector
Terminals
M208
1
B230
20
Existed
AV control unit
Ground
Continuity
Connector
Terminals
M208
1
Not existed
(+)
(–)
Voltage
(Approx.)
AV control unit
Connector
Terminals
M208
1
Ground
12.0 V
AV
U1300 AV COMM CIRCUIT
AV-151
< DTC/CIRCUIT DIAGNOSIS >
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U1300 AV COMM CIRCUIT
Description
INFOID:0000000006216305
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
U1246
• AV COMM CIRCUIT
[U1300]
• VIDEO DIST CONN
[U1246]
When either one of the following items are detected:
• video distributor power supply and ground circuits are
malfunctioning.
• headrest display unit LH power supply and ground cir-
cuits are malfunctioning.
• AV communication circuits between AV control unit
and headrest display unit LH are malfunctioning.
• location recognition signal circuit between headrest
display unit LH and ground is malfunctioning.
• Video distributor power supply and
ground circuits.
• Headrest display unit LH power sup-
ply and ground circuits.
• AV communication circuits between
AV control unit and headrest display
unit LH.
• Location recognition signal circuit
between headrest display unit LH
and ground.
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
U125C
U125B
• AV COMM CIRCUIT
[U1300]
• SWITCH CONN
[U1240]
• SONAR CONN
[U125C]
• 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.
U1300
U1240
U125C
U125B
U1246
• AV COMM CIRCUIT
[U1300]
• SWITCH CONN
[U1240]
• SONAR CONN
[U125C]
• AROUND CAMERA
CONN [U125B]
• VIDEO DIST CONN
[U1246]
AV-152
< DTC/CIRCUIT DIAGNOSIS >
U1310 AV CONTROL UNIT
U1310 AV CONTROL UNIT
DTC Logic
INFOID:0000000006216306
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.
Refer to
AV
B2700 CORNER SENSOR [FL]
AV-153
< DTC/CIRCUIT DIAGNOSIS >
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B2700 CORNER SENSOR [FL]
DTC Logic
INFOID:0000000006216307
DTC DETECTION LOGIC
DTC No.
CONSULT-III indication
DTC detection condition
Troubleshooting
B2700
CORNER SENSOR [FL]
[B2700]
Corner sensor front LH is malfunctioning.
Replace corner sensor front LH.
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