Nissan Titan A60. Manual - part 97

AV

DIAGNOSIS SYSTEM (NAVI CONTROL UNIT)

AV-213

< SYSTEM DESCRIPTION >

[PREMIUM WITH NAVIGATION]

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*: Control unit = NAVI control unit

CAUTION:

• When AV switch has a malfunction, you cannot start. Refer to 

AV-208, "AV SWITCH : Component

Function Check"

  .

• When display unit has a malfunction, you cannot start. Refer to 

AV-223, "DISPLAY UNIT : Diagnosis

Procedure"

  .

Self-diagnosis codes

CONFIRMATION/ADJUSTMENT MODE

1. Start the engine.
2. Turn the audio system off.
3. While pressing the “MEMORY 4” button, turn the volume control

dial clockwise or counterclockwise for 30 clicks or more. (When

the self-diagnosis mode is started, a short beep will be heard.)

• Shifting from current screen to previous screen is performed

by pressing “BACK” button.

Screen switch

Diagnosis No.

Switch color

Control unit*

GPS antenna

Red

×

1

Gray

×

2

Yellow

×

3

×

4

×

×

5

Diagnosis 

No.

Possible cause

Reference 

page

1

NAVI control unit malfunction.

Refer to

AV-222

2

No map DVD-ROM is inserted in the NAVI control unit.

Refer to

AV-197

3

When “DVD-ROM error. Please check disc.” is shown.
1.

Eject map DVD-ROM and check if it is compatible with the system.

2.

Check ejected DVD-ROM for dirt, damage, and warpage.

3.

If no error is found, insert a known good map DVD-ROM of the same type and perform self-diag-
nosis again. If same result is shown, the NAVI control unit is malfunctioning. If result is normal, the 
map DVD-ROM is malfunctioning.

Refer to

AV-197

4

If “Error found in DVD-ROM or DVD-ROM driver in control unit. Please perform diagnosis in accordance 
with service manual” is shown, carry out same inspection as diagnosis No. 3.

Refer to

AV-197

5

GPS antenna system.
1.

Visually check for a broken wire in the GPS antenna coaxial cable.

2.

Disconnect GPS antenna connector, and make sure approximately 5V is supplied from the NAVI 
control unit. If not, the NAVI control unit is malfunctioning. If 5V is supplied, replace the GPS an-
tenna. If the connection is still malfunction after the replacement of the GPS antenna, the NAVI 
control unit is malfunctioning.

Refer to

AV-345

ALNIA0749GB

AV-214

< SYSTEM DESCRIPTION >

[PREMIUM WITH NAVIGATION]

DIAGNOSIS SYSTEM (NAVI CONTROL UNIT)

4. The initial self-diagnosis screen will be shown, and items “Self-

Diagnosis (DCU)”, “Self-Diagnosis (NAVI)”, “Confirmation/

Adjustment” and “CAN DIAG SUPPORT MONITOR” will

become selective.

5. When “Confirmation/Adjustment” is selected on the initial self-

diagnosis screen, the operation will enter the CONFIRMATION/

ADJUSTMENT mode. In this mode, check and adjustment of

each item will become possible.

6. The initial trouble diagnosis screen will be shown, and items

“Display Diagnosis”, “Vehicle Signals”, “Auto Climate Control”

and “Navigation” will become selective.

7. Select each switch on “CONFIRMATION/ADJUSTMENT”

screen to display the relevant diagnosis screen.

DISPLAY DIAGNOSIS 

• When RGB signal error occurred in the RGB system, tone of the color bar will change as follows.

• When the color of the screen looks unusual, refer to 

AV-233, "Description"

  , 

AV-234, "Description"

   and 

AV-

235, "Description"

  .

VEHICLE SIGNALS 

SKIA4207E

SKIA4220E

ALNIA0752GB

R (red) signal error

: Screen looks bluish

G (green) signal error

: Screen looks reddish

B (blue) signal error

: Screen looks yellowish

AV

DIAGNOSIS SYSTEM (NAVI CONTROL UNIT)

AV-215

< SYSTEM DESCRIPTION >

[PREMIUM WITH NAVIGATION]

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• A comparison check can be made of each actual vehicle signal

and the signals recognized by the system.

CAUTION:

In case of confirming light signal, set D/N mode to ON/OFF of

lighting switch (normal setting).

• OFF: D (Day mode)

• ON: N (Night mode)

Unless above setting, light signal (ON/OFF) may not be accu-

rately displayed.

NAVIGATION

1. The initial confirmation/adjustment screen will be shown, and

items “Display Diagnosis”, “Vehicle Signals”,  “Navigation”,

"Error History“ and "Delete Unit Connection Log” will become

selective.

2. Select each switch on “CONFIRMATION/ADJUSTMENT”

screen to display the relevant diagnosis screen.

WKIA4306E

Diagnosis item

Display

Condition

Remarks

Vehicle speed

ON

Vehicle speed > 0 km/h (0 MPH)

Changes in indication may be delayed by ap-
prox. 1.5 seconds. This is normal.

OFF

Vehicle speed = 0 km/h (0 MPH)

–

Ignition switch in ACC position

Light

ON

Lighting switch ON

–

OFF

Lighting switch OFF

IGN

ON

Ignition switch ON

–

OFF

Ignition switch ACC

Reverse

ON

Selector lever in R position

Changes in indication may be delayed by ap-
prox. 1.5 seconds. This is normal.

OFF

Selector lever in other than R position

–

Ignition switch in ACC position

WKIA4311E

AV-216

< SYSTEM DESCRIPTION >

[PREMIUM WITH NAVIGATION]

DIAGNOSIS SYSTEM (NAVI CONTROL UNIT)

DISPLAY DIAGNOSIS 

• When RGB signal error occurred in the RGB system, tone of the color bar will change as follows.

• When the color of the screen looks unusual, refer to 

AV-233, "Description"

  , 

AV-234, "Description"

   and 

AV-

235, "Description"

  .

VEHICLE SIGNALS 

• A comparison check can be made of each actual vehicle signal

and the signals recognized by the system.

CAUTION:

In case of confirming light signal, set D/N mode to ON/OFF of

light switch (normal setting).

• OFF: D (Day mode)

• ON: N (Night mode)

Unless mode is in above setting, light signal (ON/OFF) may

not be accurately displayed.

NAVIGATION

WKIA4317E

R (red) signal error

: Screen looks bluish

G (green) signal error

: Screen looks reddish

B (blue) signal error

: Screen looks yellowish

WKIA4443E

Diagnosis item

Display

Condition

Remarks

Vehicle speed

ON

Vehicle speed > 0 km/h (0 MPH)

Changes in indication may be delayed by ap-
prox. 1.5 seconds. This is normal.

OFF

Vehicle speed = 0 km/h (0 MPH)

–

Ignition switch in ACC position

Lights

ON

Lighting switch ON

–

OFF

Lighting switch OFF

Ignition

ON

Ignition switch ON

–

OFF

Ignition switch ACC

Reverse

ON

Selector lever in R position

Changes in indication may be delayed by ap-
prox. 1.5 seconds. This is normal.

OFF

Selector lever in other than R position

–

Ignition switch in ACC position