Nissan Pathfinder (2010 year). Instruction — part 31
AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-55
< FUNCTION DIAGNOSIS >
[MID AUDIO]
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4. The initial trouble diagnosis screen will be displayed, and items
“Self-Diagnosis” and “Confirmation/Adjustment” can be
selected.
SELF-DIAGNOSIS
1. Perform self-diagnosis by selecting “Self-Diagnosis”.
• Self-diagnosis subdivision screen is displayed, and the self-
diagnosis mode starts.
• A bar graph visible on the center of the self-diagnosis subdivi-
sion screen indicates progress of the trouble diagnosis.
NOTE:
Self-diagnosis requires approximately 10 seconds to complete.
2. Diagnosis results are displayed after the self-diagnosis is com-
pleted. The unit names and the connection lines are color-coded
according to the diagnostic results.
Note:
• Only the AV control unit is displayed in red.
• If multiple malfunctions occur at the same time for a single unit, the screen switch colors are determined according to the follow-
ing order of priority: red > yellow > gray.
3. Select a component on the “Self Diagnosis” screen and com-
ments for the diagnosis results will be shown.
Self-Diagnosis Results
ALNIA0259GB
ALNIA0258GB
Diagnosis results
Unit
Connection line
Normal
Green
Green
Connection malfunc-
tion
Gray
Yellow
Unit malfunction
Note
Red
Green
ALNIA0519GB
ALNIA0256GB
2010 Pathfinder
2010 Pathfinder
AV-56
< FUNCTION DIAGNOSIS >
[MID AUDIO]
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
Area with yellow connection lines
Description
Possible malfunction location / Action
to take
AV control unit malfunction is detect-
ed
Replace the AV control unit. Refer to
AV-141, "Removal and Installation"
Poor connection is detected for the
display unit
• Harness or connector
• AV control unit
• Display unit
Switch malfunction is dectected
Perform A/C and AV switch assembly
diagnostics. Refer to
AND AV SWITCH ASSEMBLY : Com-
ponent Function Check"
Poor connection is detected for the
DVD player.
• Harness or connector
• AV control unit
• DVD player
ALNIA0520GB
ALNIA0521GB
ALNIA0522GB
ALNIA0523GB
2010 Pathfinder
2010 Pathfinder
AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-57
< FUNCTION DIAGNOSIS >
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CONFIRMATION/ADJUSTMENT MODE
1. Start the diagnosis function and select “Confirmation/Adjustment”. The confirmation/adjustment mode
indicates where each item can be checked or adjusted.
2. Select each item on the “Confirmation/Adjustment” mode screen
to display the relevant trouble diagnosis screen. Press the
“BACK” button or touch "BACK" on the touch screen to return to
the initial Confirmation/Adjustment Mode screen.
Display Diagnosis
Vehicle Signals
Poor connection is detected for the
rear view camera control unit.
• Harness or connector
• AV control unit
• Rear view camera control unit
Poor connection is detected for the
satellite radio tuner.
• Harness or connector
• AV control unit
• Satellite radio tuner
Area with yellow connection lines
Description
Possible malfunction location / Action
to take
ALNIA0524GB
ALNIA0525GB
ALNIA0251GB
ALNIA0260GB
2010 Pathfinder
2010 Pathfinder
AV-58
< FUNCTION DIAGNOSIS >
[MID AUDIO]
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
A comparison check can be made of each actual vehicle signal and
the signals recognized by the system.
Speaker Test
Select “Speaker Test” to display the speaker diagnosis screen. Press
“Start” to generate a test tone in speakers. Touch “End” to stop the
test tones.
Error History
The self-diagnosis results are judged depending on whether any
error occurs from when "Self-diagnosis" isselected until the self-
diagnosis results are displayed.
However, the diagnosis results are judged normal if an error has
occurred before the ignition SW is turned ON and then no error has
occurred until the self-diagnosis start. Check the "Error History" to
detect any error that may have occurred before the self-diagnosis
start because of this situation.
Count up method A
• The counter resets to 0 if an error occurs when IGN switch is
turned ON. The counter increases by 1 if the condition is normal at
a next IGN ON cycle.
ALNIA0261GB
Diagnosis item
Dis-
play
Vehicle status
Remarks
Vehicle speed
ON
Vehicle speed > 0 km/h
Changes in indication may be delayed by approxi-
mately 1.5 seconds. This is normal.
OFF
Vehicle speed = 0 km/h
−
Ignition switch in ACC position
Parking brake
ON
Parking brake is applied.
OFF
Parking brake is released.
Lights
ON
Light switch ON
Block the light beam from the auto light optical sensor.
OFF
Light switch OFF
Ignition
ON
Ignition switch ON
—
OFF
Ignition switch in ACC position
Reverse
ON
Selector lever in R position
Changes in indication may be delayed by approxi-
mately 1.5 seconds. This is normal.
OFF
Selector lever in any position other
than R
−
Ignition switch in ACC position
ALNIA0262GB
ALNIA0263GB
2010 Pathfinder
2010 Pathfinder
AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-59
< FUNCTION DIAGNOSIS >
[MID AUDIO]
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• The counter upper limit is 39. Any counts exceeding 39 are ignored. The counter can be reset (no error-
record display) with the "Delete log" switch or CONSULT-III.
Count up method B
• The counter increases by 1 if an error occurs when IGN switch is ON. The counter will not decrease even
ifthe condition is normal at the next IGN ON cycle.
• The counter upper limit is 50. Any counts exceeding 50 are ignored. The counter can be reset (no error-
record display) with the "Delete log" switch or CONSULT-III.
Vehicle CAN Diagnosis
• CAN communication status and error counter is displayed.
• The error counter displays “OK” if any malfunction was not
detected in the past and displays “0” if a malfunction is detected. It
increases by 1 if the condition is normal at the next ignition switch
ON cycle. The upper limit of the counter is 39.
• The error counter is erased if reset.
AV COMM Diagnosis
• AV communication status and error counter is displayed.
• The error counter displays “OK” if any malfunction was not
detected in the past and displays “0” if a malfunction is detected. It
increases by 1 if the condition is normal at the next ignition switch
ON cycle. The upper limit of the counter is 39.
• The error counter is erased if reset.
Delete Unit Connection Log
Deletes any unit connection records and error records from the AV
control unit memory. (Clear the records of the unit that has been
removed)
Inititialize Settings
Display method of occur-
rence frequency
Error history diplay item
Count up method A
CAN communication line, control unit (CAN), AV communication line, control unit (AV communica-
tion)
Count up method B
Other than above
ALNIA0264GB
ALNIA0265GB
ALNIA0266GB
2010 Pathfinder
2010 Pathfinder
AV-60
< FUNCTION DIAGNOSIS >
[MID AUDIO]
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
Initializes the AV control unit memory.
AV CONTROL UNIT : CONSULT-III Function
INFOID:0000000005259284
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
DATA MONITOR
Display Item List
A/C AND AV SWITCH ASSEMBLY
A/C AND AV SWITCH ASSEMBLY : Component Function Check
INFOID:0000000005259285
A/C and AV switch assembly self-diagnosis function
Description
The ON/OFF operation (continuity) of each switch in the A/C and AV switch assembly can be checked.
Self-diagnosis mode
• Press the “BACK” button and the “UP” button within 10 seconds
after turning the ignition switch from OFF to ACC and hold them for
3 seconds or more. When the self-diagnosis mode starts, a beep
will sound and all LED indicators of the switch will illuminate.
• The continuity of each switch and control dial of the A/C and AV
switch assembly can be checked. If the switch is operating nor-
mally, the system will beep and the LED's will illuminate when each
switch is operated.
Finishing self-diagnosis mode
ALNIA0267GB
MULTI AV diagnosis mode
Description
SELF-DIAG RESULTS
Displays AV control unit self-diagnosis results.
DATA MONITOR
Displays AV control unit input/output data in real time.
CAN DIAG SUPPORT MNTR
The result of transmit/receive diagnosis of CAN communication can be read.
AV COMM MONITOR
Allows the technician to monitor the status of the Multi AV system communication signals.
ECU PART NUMBER
The part number of AV control unit can be checked.
Display item [unit]
ALL
SIGNALS
SELECTION
FROM MENU
Description
VHCL SPD SIG [ON/OFF]
X
X
Displays “ON” when vehicle speed > 0 km/h. Displays “OFF” when ve-
hicle speed = 0 km/h.
PKB SIG [ON/OFF]
X
X
Displays [ON/OFF] condition of parking brake switch.
ILLUM SIG [ON/OFF]
X
X
Displays [ON/OFF] condition of lighting switch.
IGN SIG [ON/OFF]
X
X
Displays [ON/OFF] condition of ignition switch.
REV SIG [ON/OFF]
X
X
Displays [ON/OFF] condition of back-up lamp switch.
AWIIA0171GB
2010 Pathfinder
2010 Pathfinder
AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-61
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Self-diagnosis mode is canceled when the ignition switch is turned OFF.
2010 Pathfinder
2010 Pathfinder
AV-62
< COMPONENT DIAGNOSIS >
[MID AUDIO]
U1000 CAN COMM CIRCUIT
COMPONENT DIAGNOSIS
U1000 CAN COMM CIRCUIT
Description
INFOID:0000000005259286
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-53, "CAN Communication Signal Chart"
DTC Logic
INFOID:0000000005259287
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000005259288
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-37, "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
2010 Pathfinder
2010 Pathfinder
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