Nissan Teana J32. Manual — part 90
AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-215
< FUNCTION DIAGNOSIS >
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• For each signal, actual signal can be compared with the condition recognized on the system.
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
switch is ON .
—
Off
Expose the auto light optical sensor
to light when the light switch is OFF
or ON.
IGN SIG
On
Ignition switch ON
Off
Ignition switch in ACC position
REV SIG
On
Selector lever in R position
Changes in indication may be delayed. This is
normal.
Off
Selector lever in any position other
than R
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-216
< COMPONENT DIAGNOSIS >
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U1000 CAN COMM CIRCUIT
COMPONENT DIAGNOSIS
U1000 CAN COMM CIRCUIT
Description
INFOID:0000000003765661
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 independent). 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-22, "CAN Communication Signal Chart"
DTC Logic
INFOID:0000000003765662
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000003765663
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-14, "Trouble Diagnosis Flow Chart"
NO
>> Refer to GI section. Refer to
GI-35, "Intermittent Incident"
.
DTC
Display contents of CON-
SULT-III
Diagnostic item is detected when...
Probable malfunction location
U1000
CAN COMM CIRCUIT
When AV control unit is not transmitting or re-
ceiving CAN communication signal for 2 sec-
onds or more.
CAN communication system
AV
U1010 CONTROL UNIT (CAN)
AV-217
< COMPONENT DIAGNOSIS >
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U1010 CONTROL UNIT (CAN)
Description
INFOID:0000000003765664
Initial diagnosis of AV control unit.
DTC Logic
INFOID:0000000003765665
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000003765666
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
AV-218
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
U1310 AV CONTROL UNIT
U1310 AV CONTROL UNIT
Description
INFOID:0000000003765667
Replace the AV control unit if this DTC is displayed. Refer to
AV-378, "Removal and Installation"
.
DTC Logic
INFOID:0000000003765668
DTC DETECTION LOGIC
Part name
Description
AV CONTROL UNIT
• It is the master unit of the MULTI AV system, and it is connected to each control
unit by communication. It operates each system according to communication
signals from the AV control unit.
• AV control unit includes audio function and vehicle information function.
• It is connected to ECM and combination meter. via CAN communication to ob-
tain necessary information for the vehicle information function.
• It is connected to BCM via CAN communication transmitting/receiving for the
vehicle settings function.
• Composite image signal (AUX and DVD images) is input from DVD player.
• Camera image signal is input from camera control unit.
• Composite image (DVD, AUX and camera images) signal is output to display
unit.
• Sound signal (DVD and AUX sounds) is input from the DVD player.
• Power (signal VCC and inverter VCC) is transmitted to front display unit.
DTC
Display contents of
CONSULT-III
DTC Detection Condition
Action to take
U1310
CONTROL UNIT (AV)
[U1310]
AV communication circuit initial diagnosis malfunction is
detected.
Replace AV control unit.
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