Nissan Maxima. Manual — part 177

AV-528

< SYSTEM DESCRIPTION >

[COLOR DISPLAY - W/BOSE & NAVI]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

A Connecting Cable Between Units Is Displayed In Yellow.

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 switch on the “Confirmation/Adjustment Mode”

screen to display the relevant trouble diagnosis screen. Press

the “Back” switch to return to the initial Confirmation/Adjustment

Mode screen.

Screen switch

Description

Possible malfunction location / Action to

take

Control unit

Malfunction is detected in AV control unit
power supply and ground circuits.

Check AV control unit power supply and
ground circuits. When detecting no mal-
function in those components, replace AV
control unit.

Area with yellow connection lines

Description

Possible malfunction location / Action to

take

Control unit

⇔ Front Display

Malfunction is detected in serial communi-
cation circuits between AV control unit and
front display unit.

Serial communication circuits between AV
control unit and front display unit.

Control unit

⇔ GPS Antenna

GPS antenna connection malfunctions de-
tected.

GPS antenna

JSNIA2483ZZ

AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-529

< SYSTEM DESCRIPTION >

[COLOR DISPLAY - W/BOSE & NAVI]

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Display Diagnosis

Vehicle Signals

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

the signals recognized by the system.

AWNIA1923GB

JSNIA2177ZZ

AV-530

< SYSTEM DESCRIPTION >

[COLOR DISPLAY - W/BOSE & NAVI]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

Speaker Test

Select “SPEAKER DIAGNOSIS” to display the Speaker Diagnosis

screen. Press “Start” to generate a test tone in a speaker. Press

“Start” to generate a test tone in the next speaker. Press “Stop” to

stop the test tones.

Navigation

STEERING ANGLE ADJUSTMENT

The steering angle output value detected with the gyroscope is

adjusted.

SPEED CALIBRATION

During normal driving, distance error caused by tire wear and tire

pressure change is automatically adjusted for by the automatic dis-

tance correction function. This function, on the other hand, is for

immediate adjustment, in cases such as driving with tire chain fitted

on tires.

Diagnosis item

Display

Vehicle status

Remarks

Vehicle speed

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)

Parking brake

ON

Parking brake is applied.

OFF

Parking brake is released.

Lights

ON

Light switch ON

—

OFF

Light switch OFF

Ignition

ON

Ignition switch ON

—

OFF

Ignition switch in ACC position

Reverse

ON

Shift the selector lever to “R” posi-
tion

Changes in indication may be delayed. This is normal.

OFF

Shift the selector lever other than
“R” position

Side view Switch

—

—

This item is displayed, but cannot be monitored.

Room Lamp

OFF

—

This item is displayed, but not used.

JSNIA2178ZZ

JSNIA2179ZZ

JSNIA2180ZZ

AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-531

< SYSTEM DESCRIPTION >

[COLOR DISPLAY - W/BOSE & NAVI]

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Error History

The self-diagnosis results are judged depending on whether any error occurs from when “Self-diagnosis” is

selected until the self-diagnosis results are displayed.

However, the diagnosis results are judged normal if an error has occurred before the ignition switch is turned

ON and then no error has occurred until the self-diagnosis start. Check the “Error Record” to detect any error

that may have occurred before the self-diagnosis start because of this situation.

The error record displays the time and place of the most recent occurrence of that error. However, take note of

the following points.

• If there is a malfunction with the GPS antenna circuit board in the AV control unit, the correct date and time

of occurrence may not be able to be displayed.

• Place of the error occurrence is represented by the position of the current location mark at the time an error

occurred. If current location mark has deviated from the correct position, then the place of the error occur-

rence cannot be located correctly.

• The frequency of occurrence is displayed in a count up manner. The actual count up method differs depend-

ing on the error item.

Count up method A

• The counter resets to 0 if an error occurs when ignition switch is turned ON. The counter increases by 1 if

the condition is normal at a next ignition ON cycle.

• 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.

Count up method B

• The counter increases by 1 if an error occurs when ignition switch is ON. The counter will not decrease even

if the condition is normal at the next ignition 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.

Error item

Some error items may be displayed simultaneously according to the cause. If some error items are displayed

simultaneously, the detection of the cause can be performed by the combination of display items

Display type of occur-

rence frequency

Error history display item

Count up method A

CAN communication line, control unit (CAN), AV communication line, control unit (AV)

Count up method B

Other than the above

JPNIA1788GB

Error item

Description

Possible malfunction factor/Action to take

CAN COMM CIRCUIT

CAN communication malfunction is detect-
ed.

Perform diagnosis with CONSULT, and
then repair the malfunctioning parts accord-
ing to the diagnosis results.
Refer to

AV-536, "CONSULT Function

(MULTI AV)"

.