Nissan Murano Z51. Manual — part 206
AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-603
< SYSTEM DESCRIPTION >
[BOSE AUDIO WITH NAVIGATION]
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NOTE:
*: Non-equipped item is not displayed.
DATA MONITOR
All Signals
• Displays the status of the following vehicle signals inputted into the AV control unit.
• For each signal, the actual signal can be compared with the status recognized on the system.
• AV COMM CIRCUIT [U1300]
• INTERNAL COMM [U121F]
Malfunction is detected in AV control unit
power supply and ground circuits.
Check AV control unit power supply and
ground circuits. When detecting no mal-
function in those components, replace AV
control unit.
• 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.
• AV communication signal between AV
control unit and multifunction switch is
malfunctioning.
• Multifunction switch power supply and
ground circuits.
• AV communication circuits between AV
control unit and multifunction switch.
• AV COMM CIRCUIT [U1300]
• REAR CAMERA LAN CONN [U1252]
When either one of the following items are
detected:
• camera control unit power supply and
ground circuits are malfunctioning.
• AV communication circuits between mul-
tifunction switch and camera control unit
is malfunctioning.
• AV communication signal between AV
control unit and camera control unit is
malfunctioning.
• Camera control unit power supply and
ground circuits.
• AV communication circuits between mul-
tifunction switch and camera control unit.
• AV COMM CIRCUIT [U1300]
• IPod CONN [U1254]
When either one of the following items are
detected:
• iPod adapter power supply and ground
circuits are malfunctioning.
• AV communication circuits between mul-
tifunction switch and iPod adapter are
malfunctioning.
• AV communication signal between AV
control unit and iPod adapter is malfunc-
tioning.
• iPod adapter power supply and ground
circuits.
• AV communication circuits between mul-
tifunction switch unit and iPod adapter.
• AV COMM CIRCUIT [U1300]
• REAR CAMERA LAN CONN [U1252]
• IPod CONN [U1254]
*
Malfunction is detected in AV communica-
tion circuits between camera control unit
and the junction of AV control unit and mul-
tifunction switch.
AV communication circuits between cam-
era control unit and the junction of AV con-
trol unit and multifunction switch.
• AV COMM CIRCUIT [U1300]
• SWITCH CONN [U1240]
• REAR CAMERA LAN CONN [U1252]
• IPod CONN [U1254]
*
Malfunction is detected in AV communica-
tion circuits between AV control unit and
multifunction switch.
AV communication circuits between AV
control unit and the junction of camera con-
trol unit and multifunction switch.
• AV COMM CIRCUIT [U1300]
• INTERNAL COMM [U121F]
• SWITCH CONN [U1240]
• REAR CAMERA LAN CONN [U1252]
• IPod CONN [U1254]*
Malfunction is detected in AV communica-
tion circuits.
Check and repair the short circuit in AV
communication circuits.
Error item
Description
Possible malfunction factor/Action to take
AV-604
< SYSTEM DESCRIPTION >
[BOSE AUDIO WITH NAVIGATION]
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
Selection From Menu
allows the technician to select which vehicle signals should be displayed and displays the status of the
selected vehicle signals.
Display Item
Display
Vehicle status
Remarks
VHCL SPD SIG
On
Vehicle speed >0 km/h (0 MPH)
Changes in indication may be delayed. This is
normal.
Off
Vehicle speed =0 km/h (0 MPH)
PKB SIG
On
Parking brake is applied.
Off
Parking brake is released.
ILLUM SIG
On
Block the light beam from the auto
light optical sensor when the light
SW is ON.
—
Off
Expose the auto light optical sensor
to light when the light SW is OFF or
ON.
IGN SIG
On
Ignition switch ON
Off
Ignition switch in the ACC position
REV SIG
On
Selector lever in the “R” position
Changes in indication may be delayed. This is
normal.
Off
Selector lever in any position other
than the “R” position
Item to be selected
Description
VHCL SPD SIG
The same as when “ALL SIGNALS”
is selected.
PKB SIG
ILLUM SIG
IGN SIG
REV SIG
AV
U1000 CAN COMM CIRCUIT
AV-605
< DTC/CIRCUIT DIAGNOSIS >
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DTC/CIRCUIT DIAGNOSIS
U1000 CAN COMM CIRCUIT
Description
INFOID:0000000005528697
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-27, "CAN Communication Signal Chart"
DTC Logic
INFOID:0000000005528698
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000005528699
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 system”. Refer to
LAN-17, "Trouble Diagnosis Flow Chart"
NO
>> Refer to GI section. Refer to
GI-39, "Intermittent Incident"
.
DTC
Display contents of CON-
SULT-III
Diagnostic item is detected when...
Probable malfunction location
U1000
CAN COMM CIRCUIT
AV control unit is not transmitting or receiving
CAN communication signal for 2 seconds or
more.
CAN communication system.
AV-606
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
U1010 CONTROL UNIT (CAN)
U1010 CONTROL UNIT (CAN)
Description
INFOID:0000000005528700
Initial diagnosis of AV control unit.
DTC Logic
INFOID:0000000005528701
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000005528702
1.
REPLACE AV CONTROL UNIT
When DTC U1010 is detected, replace AV control unit.
>> INSPECTION END
DTC
Display contents of CON-
SULT-III
Diagnostic item is detected when...
Probable malfunction location
U1010
CONTROL UNIT (CAN)
CAN initial diagnosis malfunction is detected.
AV control unit.
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