Infiniti QX56 (JA60). Manual - part 87

 

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Infiniti QX56 (JA60). Manual - part 87

 

 

AV-156

< SYMPTOM DIAGNOSIS >

[AUDIO SYSTEM]

MULTI AV SYSTEM

SYMPTOM DIAGNOSIS

MULTI AV SYSTEM

Symptom Table

INFOID:0000000005146352

AUDIO SYSTEM

NAVIGATION SYSTEM

HANDS-FREE PHONE SYSTEM

REAR VIEW MONITOR

Symptom

Possible cause

Reference page

Inoperative

• AV control unit power and ground circuit
• AV  control  unit

AV-68

AV-27

Steering switch does not operate

• Steering switch
• AV  control  unit

AV-40

AV-27

All speakers do not sound

• AV control unit power and ground circuit
• BOSE speaker amp. ON signal 
• BOSE speaker amp. power and ground circuit
• BOSE speaker amp. 
• AV  control  unit

AV-68

AV-105

AV-70

AV-149

AV-110

One or several speakers do not sound

• Front door speaker
• Front tweeter
• Center speaker
• Rear tweeter 
• Rear door speaker
• Back door speaker
• Subwoofer

AV-85

AV-88

AV-91

AV-96

AV-93

AV-99

AV-102

Symptom

Possible cause

Reference page

Inoperative

• AV control unit power and ground circuit
• AV  control  unit

AV-68

AV-27

Steering switch does not operate

• Steering switch
• AV  control  unit

AV-106

AV-27

Voice activated control does not operate

• Microphone
• Steering switch
• AV  control  unit

AV-108

AV-106

AV-27

Symptom

Possible cause

Reference page

Inoperative

• AV control unit power and ground circuit
• AV  control  unit

AV-68

AV-27

Steering switch does not operate

• Steering switch
• AV  control  unit

AV-106

AV-27

Voice activated control does not operate

• Microphone
• Steering switch
• AV  control  unit

AV-108

AV-106

AV-27

Symptom

Possible cause

Reference page

Inoperative

• Rear view camera control unit power and ground circuit
• Reverse signal circuit
• Camera ON signal circuit
• Camera image signal circuit (rear view camera to rear 

view camera control unit)

• Camera image signal circuit (rear view camera control 

unit to AV control unit)

• Rear view camera control unit

AV-72

AV-152

AV-152

AV-152

AV-152

AV-152

AV

MULTI AV SYSTEM

AV-157

< SYMPTOM DIAGNOSIS >

[AUDIO SYSTEM]

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DVD PLAYER

Symptom

Possible cause

Reference page

DVD player inoperative

• Power supply and ground circuits
• DVD player

AV-74

AV-154

No sound when playing a DVD

• Audio signal circuits
• AV  control  unit
• DVD player

AV-85

AV-68

AV-74

Video monitor is inoperative/does not display properly

• Power supply and ground circuits
• Video out circuit
• DVD player
• Display monitor

AV-75

AV-154

AV-74

AV-75

DVD remote control is inoperative/does not operate 
properly

• DVD player
• Rear audio remote control unit

AV-74

AV-110

Headphones inoperative

• Headphone batteries
• Headphone audio signal circuits from AV control unit
• AV  control  unit
• Rear audio remote control unit

AV-154

AV-110

AV-110

AV-158

< SYMPTOM DIAGNOSIS >

[AUDIO SYSTEM]

NORMAL OPERATING CONDITION

NORMAL OPERATING CONDITION

Description

INFOID:0000000005146353

AUDIO SYSTEM

The majority of the audio troubles are the result of outside causes (bad CD, electromagnetic interference,

etc.).

Noise

The following noise results from variations in field strength, such as fading noise and multi-path noise, or

external noise from trains and other sources. It is not a malfunction.

• Fading noise: This noise occurs because of variations in the field strength in a narrow range due to moun-

tains or buildings blocking the signal.

• Multi-path noise: This noise results from the waves sent directly from the broadcast station arriving at the

antenna at a different time from the waves which reflect off mountains or buildings.

The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning.

Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and opera-

tion of each piece of electrical equipment, and determine the cause.

NOTE:

The source of the noise can be found easily by listening to the noise while removing the fuses of electrical

components, one by one.

Type of Noise and Possible Cause

NAVIGATION SYSTEM

Basic Operation

Vehicle Mark

Occurrence condition

Possible cause

Occurs only when engine is ON.

A continuous growling noise occurs. The speed of 
the noise varies with changes in the engine speed.

• Ignition components

The occurrence of the noise is linked with the operation of the fuel pump.

• Fuel pump condenser

Noise only occurs when various 
electrical components are oper-
ating.

A cracking or snapping sound occurs with the op-
eration of various switches.

• Relay malfunction, AV control unit malfunc-

tion

The noise occurs when various motors are operat-
ing.

• Motor case ground
• Motor

The noise occurs constantly, not just under certain conditions.

• Rear defogger coil malfunction
• Open circuit in printed heater
• Poor ground of antenna feeder line

A cracking or snapping sound occurs while the vehicle is being driven, especially when 
it is vibrating excessively.

• Ground wire of body parts
• Ground due to improper part installation
• Wiring connections or a short circuit

Symptom

Cause

Remedy

No image is shown.

Display brightness adjustment is set fully to DARK 
side.

Adjust the display brightness.

No guide sound is heard.
Audio guide volume is too low or 
too high.

Volume control is set to OFF, MIN or MAX.

Adjust the audio guide volume.

Audio guidance is not available while the vehicle is 
driving on a dark pink route.

System is not malfunctioning.

Screen is too dark.
Motion of the image is too slow.

Temperature inside the vehicle is low.

Wait until the temperature inside the vehicle 
reaches the proper temperature.

Small black or bright spots appear 
on the screen.

Symptom peculiar to a liquid crystal display (dis-
play unit).

System is not malfunction.

AV

NORMAL OPERATING CONDITION

AV-159

< SYMPTOM DIAGNOSIS >

[AUDIO SYSTEM]

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Destination, Passing Points and Menu Items Cannot be Selected/Set

Symptom

Cause

Remedy

Map screen and BIRDVIEW™ 
Name of the place vary with the 
screen.

Some thinning of the character data is done to pre-
vent the display becoming to complex. In some 
cases and in some locations, the display contents 
may differ.
The same place name, street name, etc. may not 
be displayed every time on account of the data 
processing.

System is not malfunctioning.

Vehicle mark is not positioned cor-
rectly.

Vehicle is transferred by ferry or by towing after its 
ignition switch is turned to OFF.

Drive the vehicle for a while in the GPS sat-
ellite signal receiving condition.

Screen will not switch to nighttime 
mode after the lighting switch is 
turned ON.

The daytime screen is selected by the “SWITCH 
SCREENS” when the last time the screen dim-
ming setting is done.
Switching between daytime/nighttime screen may 
be inhibited by the automatic illumination adjust-
ment function.

Perform screen dimming and select the 
nighttime screen by “SWITCH SCREENS”.

Map screen will not scroll in accor-
dance with the vehicle travel.

Current location is not displayed.

Press “MAP” button to display the current lo-
cation.

Vehicle mark will not be shown.

Current location is not displayed.

Press “MAP” button to display the current lo-
cation.

Accuracy indicator (GPS satellite 
mark) on the map screen stays 
gray.

GPS satellite signal is intercepted because the ve-
hicle is in or behind a building.

Move the vehicle out to an open space.

GPS satellite signal cannot be received because 
an obstacle is placed on top of the instrument pan-
el.

Do not place anything on top of the meter dis-
play (instrument panel).

GPS satellites are not visible from current location. Wait until GPS satellites are visible by mov-

ing the vehicle.

Vehicle location accuracy is low.

Accuracy indicator (GPS satellite mark) on the 
map screen stays gray.

Current location is not determined.

Vehicle speed setting by the vehicle speed pulse 
has been deviated (advanced or retarded) from 
the actual vehicle speed because tire chain is fit-
ted or the system has been used on another vehi-
cle.

Drive the vehicle for a while [for approx. 30 
minutes at approx. 30 km/h (19 MPH)] and 
the deviation will be automatically adjusted. If 
advancement or retard still occur, perform 
the distance adjustment by CONFIRMA-
TION/ADJUSTMENT mode of diagnosis 
function.

Map data has error or omission. (Vehicle mark is 
always deviated to the same position.)

As a rule, an updated map DVD–ROM will be 
released once a year.

Symptom

Cause

Remedy

Destination cannot be set.

Destination to be set is on an expressway.

Set the destination on an ordinary road.

Passing point is not searched 
when re-searching the route.

The vehicle has already passed the passing point, 
or the system judged so.

To include the passing points that have been 
passed into the route again, set the route 
again.

Route information will not be dis-
played.

Route searching has not been done.

Set the destination and perform route 
searching.

Vehicle mark is not on the recommended route.

Drive on the recommended route.

Route guide is turned OFF.

Turn route guide ON.

Route information is not available on the dark pink 
route.

System is not malfunctioning.

After the route searching, no guide 
sign will appear as the vehicle 
goes near the entrance/exit to the 
toll road.

Vehicle mark is not on the recommended route. 
(On the display, only guide signs related to the rec-
ommended route will be shown.)

Drive on the recommended route.

 

 

 

 

 

 

 

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