Nissan Tiida C11. Manual — part 14
AV-50
< FUNCTION DIAGNOSIS >
[AUDIO WITH NAVIGATION]
DIAGNOSIS SYSTEM (NAVI CONTROL UNIT)
ALL SIGNALS
• Displays the status of the following vehicle signals inputted to the NAVI control unit.
• 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.
AV communication monitor
AV&NAVI C/U
• Displays the communication status from NAVI control unit to each unit as well as the error counter.
• The error counter displays “OK” if no malfunction was 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.
AUDIO
• Displays the NAVI control unit communication status and the error counter.
Display Item
Dis-
play
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.
Changes in indication may be delayed. This is
normal.
OFF
Parking brake is released.
ILLUM SIG
ON
Lighting switch ON
—
OFF
Lighting switch OFF
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
Items
Display (Current)
Malfunction
counter
(Past)
TRANSMIT DIAG
OK / UNKWN
OK / 0 – 39
PANEL SWITCH
OK/ UNKWN
OK / 0 – 39
SW SECONDARY
—
—
RR CONTROL SW
—
—
STEERING SW
OK / UNKWN
OK / 0 – 39
AUDIO
OK / UNKWN
OK / 0 – 39
SPEAKER AMP
OK / UNKWN
OK / 0 – 39
FM MULTI
OK / UNKWN
OK / 0 – 39
AV
DIAGNOSIS SYSTEM (NAVI CONTROL UNIT)
AV-51
< FUNCTION DIAGNOSIS >
[AUDIO WITH NAVIGATION]
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• The error counter displays “OK” if no malfunction was 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.
ECU PART NUMBER
The part number of NAVI control unit is displayed.
Items
Display (Current)
Malfunction
counter
(Past)
TRANSMIT DG
OK / UNKWN
OK / 0 – 39
AV-52
< COMPONENT DIAGNOSIS >
[AUDIO WITH NAVIGATION]
U1000 CAN COMM CIRCUIT
COMPONENT DIAGNOSIS
U1000 CAN COMM CIRCUIT
Description
INFOID:0000000001728646
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 line, CAN-L line) 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
XX-XX, "*****"
.
DTC Logic
INFOID:0000000001728647
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000001728648
1.
PERFORM SELF DIAGNOSTIC
1.
Turn ignition switch ON and wait for 2 second or more.
2.
Check “Self Diagnostic Result” of “MULTI AV”.
Is “CAN COMM CIRCUIT” displayed?
YES
>> Refer to “LAN system”. Refer to
XX-XX, "*****"
.
NO
>> Refer to GI section. Refer to
XX-XX, "*****"
.
DTC
Display contents of CON-
SULT-III
Diagnostic item is detected when...
Probable malfunction location
U1000
CAN COMM CIRCUIT
[U1000]
NAVI control unit does not transmit or receive
CAN communication signal for 2 seconds or
more.
CAN communication system
AV
U1010 CONTROL UNIT (CAN)
AV-53
< COMPONENT DIAGNOSIS >
[AUDIO WITH NAVIGATION]
C
D
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F
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B
A
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P
U1010 CONTROL UNIT (CAN)
Description
INFOID:0000000001728649
Initial diagnosis of NAVI control unit.
DTC Logic
INFOID:0000000001728650
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000001728651
1.
REPLACE NAVI CONTROL UNIT
Replace NAVI control unit when DTC U1010 is detected.
>> INSPECTION END
DTC
Display contents of CON-
SULT-III
Diagnostic item is detected when...
Probable malfunction location
U1010
CONTROL UNIT (CAN)
[U1010]
CAN initial diagnosis malfunction is detected.
NAVI control unit
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