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]

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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