Infiniti M45 (Y34). Manual - part 317

 

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Infiniti M45 (Y34). Manual - part 317

 

 

VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT 

NAVIGATION SYSTEM

DI-113

C

D

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F

G

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Self-Diagnosis Mode

AKS00401

OPERATION PROCEDURE 

1.

Start the engine.

2.

Turn the audio system off.

3.

While pressing the “INFO” switch, 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 “PREV” switch.

4.

The initial trouble diagnosis screen will be shown, and items
“SELF DIAGNOSIS” and “Confirmation/Adjustment” will become
selective.

5.

Perform self-diagnosis by selecting the “SELF DIAGNOSIS”.

Self-diagnosis subdivision screen will be shown and the oper-
ation enters the self-diagnosis mode.

A bar graph shown below the self-diagnosis subdivision
screen indicates progress of the diagnosis.

6.

When the self-diagnosis completes, optional part confirmation
screen will be shown.

When connection of an optional part is judged faulty, a screen
to check if the optional part is actually fitted on the vehicle or
not will be shown. When fitted, select the switch of the part on
the screen and press “END”. Then the “SELF DIAGNOSIS”
screen will be shown.

When the optional part is connected normally, the switch for
the part will not appear on the screen.

SKIA3512E

SKIA0381E

SKIA0382E

SKIA3513E

DI-114

VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT 

NAVIGATION SYSTEM

7.

On the “SELF DIAGNOSIS” screen, each unit name will be col-
ored according to the diagnosis result, as follows.

If several malfunctions are present in a unit, color of its switch
on the screen will be either red or yellow determined by the
malfunction of the highest priority.

CAUTION:

“Tire Pressure Control Unit” on the screen will be illumi-
nated in yellow when performing self-diagnosis with ignition switch in ACC position.

8.

Select a switch on the “SELF DIAGNOSIS” screen and com-
ments for the diagnosis results will be shown.

When the switch is green, the following comment will be
shown. “Self-diagnosis was successful. Further diagnosis and
adjustments are recommended. Follow the “confirmation and
adjustments” menu or refer to the service manual.”.

When the switch is yellow, the following comment will be
shown. “Connection to the following unit is abnormal. See the
Service Manual for further details”.

When the switch is red, the following comment will be shown.
“Center Control Unit is abnormal”.

SELF-DIAGNOSIS RESULT 
Quick Reference Table

1.

Select an applicable diagnosis No. in the diagnosis result quick reference table.

2.

Find estimated malfunctioning system in the diagnosis No. table and perform check by referring to 

DI-103,

"Wiring Diagram — COMM —"

 .

3.

Turn the ignition switch to OFF and perform self-diagnosis again.

*1: Center control unit = AV control unit

*2: Audio amp. = BOSE speaker amp.

CAUTION:

When multifunction switch has a malfunction, you can not start.

Check the following when the self–diagnosis mode you can not use.

AV communication line between AV control unit and Display, AV communication line between
Display and multifunction switch.

multifunction switch power supply and ground circuit

When an error is in the AV communication line, it cannot be detected on the screen because
self–diagnosis is inoperative. However, the error can be detected with CONSULT–II.

Green

: No malfunctioning.

Yellow

: Cannot be judged by self–diagnosis results.

Red

: Unit is malfunctioning.

SKIA0615E

SKIA0385E

Screen switch

Diagnosis No.

Switch 

color

Center con-

trol unit

*1

Display

Tire pres-

sure control 

unit

Audio unit

CD auto 
changer

Audio 

amp.

*2

Voice acti-

vated control 

module

Red

×

1

Yellow

×

×

2

×

×

3

×

×

×

4

×

5

×

×

6

×

×

7

×

×

×

×

8

VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT 

NAVIGATION SYSTEM

DI-115

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Self-Diagnosis Codes

Confirmation/Adjustment Mode

AKS00402

OPERATION PROCEDURE 

1.

Start the engine.

2.

Turn the audio system off.

3.

While pressing the “INFO” switch, 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 “PREV” switch.

4.

The initial trouble diagnosis screen will be shown, and items
“SELF DIAGNOSIS” and “Confirmation/Adjustment” will become
selective.

5.

When “Confirmation/Adjustment” is selected on the initial trouble
diagnosis screen, the operation will enter the CONFIRMATION/
ADJUSTMENT mode. In this mode, check and adjustment of
each item will become possible.

6.

Select each switch on “Confirmation/Adjustment” screen to dis-
play the relevant diagnosis screen.

Diagnosis 

No.

Possible cause

1

AV control unit malfunction

2

Display power supply and ground circuit

3

Low tire pressure warning control unit power supply and ground circuit, 

AV communication line between low tire pressure warning control unit and multifunction switch.

4

Audio unit power supply and ground circuit

5

CD auto changer power supply and ground circuit

 AV communication line between CD auto changer and audio unit.

6

Voice activated control module power supply and ground circuit. 

7

BOSE speaker amp. power supply and ground circuit.

AV communication line between BOSE speaker amp. and audio unit. 

BOSE speaker amp. internal communication circuit.

8

AV communication line between audio unit and multifunction switch.

Audio control unit communication circuit.

SKIA3512E

SKIA0381E

SKIA4182E

DI-116

VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT 

NAVIGATION SYSTEM

DISPLAY DIAGNOSIS 

CAUTION:

When DISPLAY COLOR SPECTRUM BAR screen is completed after “PREV” switch is pressed, the
screen color changes once. This is not abnormal.

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 

DI-125, "Color of RGB Image is Not Proper"

 .

VEHICLE SIGNALS 

A comparison check can be made of each actual vehicle signal
and the signals recognized by the system.

If vehicle speed is NG, refer to 

DI-122, "Vehicle Speed Signal Inspection"

 .

If light is NG, refer to 

DI-123, "Illumination Control Signal Inspection"

 .

If IGN is NG, refer to 

DI-124, "Ignition Signal Inspection"

 .

SKIA0362E

R (red) signal error

: Screen looks bluish

G (green) signal error

: Screen looks yellowish

B (blue) signal error

: Screen looks reddish

SKIA3741E

Diagnosis item

Display

Condition

Remarks

Vehicle Speed

ON

Vehicle speed > 0 km/h  (0 MPH)

Changes in indication may be delayed by 
approx. 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 or OFF

 

 

 

 

 

 

 

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