2011 INFINITI QX56 air condition

AV
SIDE CAMERA RH IMAGE SIGNAL CIRCUITAV-191
< DTC/CIRCUIT DIAGNOSIS >
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SIDE CAMERA RH IM AGE SIGNAL CIRCUIT
DescriptionINFOID:0000000006216364
 Around view monitor control unit supplies to the front camera, rear camera and side camera. And then it
superimpose the images from each camera and outputs then to the front display unit.
 Superimpose the guiding lines, predictive course line and sonar indicator to the camera image that outputs
to the front display unit.
 Around view monitor control unit performs the rec eption/transmission of communication signal with each
camera.
Diagnosis ProcedureINFOID:0000000006216365
1.CHECK CONTINUITY SIDE CAMERA RH POWER SUPPLY AND GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect control unit connector and door mirror (passenger side) connector.
3. Check continuity between around view monitor c ontrol unit harness connector and door mirror (passenger
side) harness connector.
4. Check continuity between around view monitor control unit harness connector and ground.
Is inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK VOLTAGE SIDE CAMERA RH POWER SUPPLY
1. Connect around view monitor control unit connec tor and door mirror (passenger side) connector.
2. Turn ignition switch ON.
3. Check voltage between around view monitor control unit harness connector and ground.
Is inspection result normal?
YES >> GO TO 3.
NO >> Replace around view monitor control unit. Refer to AV-233, "
Removal and Installation".
3.CHECK CONTINUITY SIDE CAMERA RH IMAGE SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect around view monitor control unit connec tor and door mirror (passenger side) connector.
3. Check continuity between around view monitor c ontrol unit harness connector and door mirror (passenger
side) harness connector.
Around view monitor control
unit Door mirror
(passenger side) Continuity
Connector Terminals Connector Terminals
M48 32
D23 18
Existed
34 6
Around view monitor control unit GroundContinuity
Connector Terminal
M48 34 Not existed
(+)
(− ) Condition Vo l ta g e
(Approx.)
Around view monitor control
unit
Connector Terminal
M48 34 Ground “CAMERA” switch is ON or
shift position is “R”.
6.0 V
Revision: 2010 May2011 QX56

AV-192
< DTC/CIRCUIT DIAGNOSIS >
SIDE CAMERA RH IMAGE SIGNAL CIRCUIT
4. Check continuity between around view monitor control unit harness connector and ground.
Is inspection result normal?
YES >> GO TO 4.
NO >> Repair harness or connector.
4.CHECK SIDE CAMERA RH IMAGE SIGNAL
1. Connect around view monitor control unit connector and door mirror (passenger side) connector.
2. Turn ignition switch ON.
3. Check signal between around view monitor control unit harness connector.
Is inspection result normal?
YES >> Replace around view monitor control unit. Refer to AV-233, "Removal and Installation".
NO >> Replace side camera RH. Refer to AV-236, "
Removal and Installation".
Around view monitor control
unit Door mirror
(passenger side) Continuity
Connector Terminals Connector Terminals
M48 29
D23 5
Existed
30 17
Around view monitor control unit GroundContinuity
Connector Terminals
M48 29, 30 Not existed
(+) ( −)
Condition Reference value
Around view monitor control
unit Around view monitor control
unit
Connector Terminal Connector Terminal
M48 29 B48 30 “CAMERA” switch is ON or
shift position is “R”.
JSNIA0834GB
Revision: 2010 May2011 QX56

AV
NORMAL OPERATING CONDITIONAV-207
< SYMPTOM DIAGNOSIS >
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Related to Item Choice
The system should respond correctly to all voice comm
ands without difficulty. If problems are encountered, fol-
low the solutions given in this guide for the appropriate error.
Where the solutions are listed by number, try each solu tion in turn, starting with number one, until the problem
is resolved.
Related to Telephone
The system should respond correctly to all voice comm ands without difficulty. If problems are encountered, try
the following solutions.
Where the solutions are listed by number, try each soluti on in turn, starting with number 1, until the problem is
resolved.
Symptom Possible cause Possible solution
The system does not
recognize your com-
mand.
or
The system recognizes
your command incor-
rectly The interior of the vehicle is too noisy. Close the windows or have other occupants quiet.
The volume of your voice is too low. Speak louder.
The volume if your voice is too loud. Speak softer.
Your pronunciation is unclear. Speak clearly.
You are speaking before the voice recognition is ready
Press and release “ ” switch on the steering
switch, and speak a command after the tone
sounds.
8 seconds or more have passed after you pressed and
released “ ” switch on the steering switch. Make sure to speak a command within 8 seconds
after you press and release “ ” switch on the
steering switch.
Only a limited range of voice commands is usable for
each screen. Use a correct voice command appropriate for the
current screen.
The fan of the air conditioner is too loud. Lower the fan speed as necessary as voice com-
mand can be recognized more easily.
Symptom/ error message Solution
Displays “CO MMAND NOT REC-
OGNIZED” or the system fails to in-
terpret the comm and correctly. 1. Ensure that the command format is valid.
2. Speak clearly without pausing between words and at a level appropriate to the ambient noise
level.
3. Ensure that the ambient noise level is not excessive, for example, windows open or defrost on.
NOTE:
If it is too noisy to use the phone, it is li
kely that voice commands will not be recognized.
4. If optional words of the command have been omitted, then command should be tried with these
in place.
The system consistently selects
the wrong voicetag 1. Ensure that the voicetag requested matches what was originally stored. This can be confirmed
by giving the “Addressbook” Directory or Phone Directory command.
2. Replace one of the voicetags being confused with a different voicetag.
Symptom Solution
System fails to interpret the com-
mand correctly. 1. Ensure that the command is valid.
2. Ensure that the command is spoken after the tone.
3. Speak clearly without pausing between words and at level appropriate to the ambient noise lev-
el in the vehicle.
4. Ensure that the ambient noise level is not excessive (for example, windows open or defroster
on).
NOTE:
If it is too noisy to use the phone, it is likely
that the voice commands will not be recognized.
5. If more than one command was said at a time, try saying the commands separately.
6. If the system consistently fails to recognize commands, the voice training procedure should be
carried out to improve the recognition response for the speaker. See “Speaker adaptation (SA)
mode” earlier in this section. Refer to “OWNER’S MANUAL”.
Revision: 2010 May2011 QX56

BCS-14
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)INFOID:0000000006274796
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.
×: Applicable item
*: This item is indicated, but not used.
FREEZE FRAME DATA (FFD)
The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on
CONSULT-III.
Diagnosis mode Function Description
Work Support Changes the setting for each system function.
Self Diagnostic Result Displays the diagnosis results judged by BCM. Refer to BCS-57, "
DTCIndex".
CAN Diag Support Monitor Monitors the reception status of CAN communication viewed from BCM. Refer to CONSULT-III opera-
tion manual.
Data Monitor The BCM input/output signals are displayed.
Active Test The signals used to activate ea ch device are forcibly supplied from BCM.
Ecu Identification The BCM part number is displayed.
Configuration  Read and save the vehicle specification.
 Write the vehicle specification when replacing BCM.
System Sub system selection item Diagnosis mode
Work Support Data Monitor Active Test
Door lock DOOR LOCK ×××
Rear window defogger REAR DEFOGGER ××
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Exterior lamp HEAD LAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ×××
— AIR CONDITONER* ××
 Intelligent Key system
 Engine start system INTELLIGENT KEY
×××
Combination switch COMB SW ×
Body control system BCM ×
IVIS IMMU ×××
Interior room lamp battery saver BATTERY SAVER ×××
Back door TRUNK ×
Vehicle security system THEFT ALM ×××
RAP system RETAINED PWR ×
Signal buffer system SIGNAL BUFFER ××
Revision: 2010 May2011 QX56

BCS-34
< ECU DIAGNOSIS INFORMATION >
BCM
RR FOG SWNOTE:
The item is indicated, but not monitored. Off
DOOR SW-DR Driver door closed Off
Driver door opened On
DOOR SW-AS Passenger door closed Off
Passenger door opened On
DOOR SW-RR Rear RH door closed Off
Rear RH door opened On
DOOR SW-RL Rear LH door closed Off
Rear LH door opened On
DOOR SW-BK Back door closed Off
Back door opened On
CDL LOCK SW Other than power door lock switch LOCK Off
Power door lock switch LOCK On
CDL UNLOCK SW Other than power door lock switch UNLOCK Off
Power door lock switch UNLOCK On
KEY CYL LK-SW Other than driver door key cylinder LOCK position Off
Driver door key cylinder LOCK position On
KEY CYL UN-SW Other than driver door key cylinder UNLOCK position Off
Driver door key cylinder UNLOCK position On
HAZARD SW Hazard switch is OFF Off
Hazard switch is ON On
REAR DEF SW Rear window defogger switch OFF Off
Rear window defogger switch ON On
TR/BD OPEN SW Back door opener switch OFF Off
While the back door opener switch is turned ON On
TRNK/HAT MNTR NOTE:
The item is indicated, but not monitored.
Off
FA N O N S I G NOTE:
The item is indicated, but not monitored.
Off
AIR COND SW NOTE:
The item is indicated, but not monitored. Off
RKE-LOCK LOCK button of the key is not pressed Off
LOCK button of the key is pressed On
RKE-UNLOCK UNLOCK button of the key is not pressed Off
UNLOCK button of the key is pressed On
RKE-TR/BD BACK DOOR OPEN button of the key is not pressed Off
BACK DOOR OPEN button of the key is pressed On
RKE-PANIC PANIC button of the key is not pressed Off
PANIC button of the key is pressed On
RKE-MODE CHG LOCK/UNLOCK button of the key is not pressed and held simultaneously Off
LOCK/UNLOCK button of the key is pressed and held simultaneously On
OPTI SEN (DTCT) Bright outside of the vehicle Close to 5 V
Dark outside of the vehicle Close to 0 V
OPTI SEN (FILT) Bright outside of the vehicle (Lighting switch AUTO) Close to 5 V
Dark outside of the vehicle (Lighting switch AUTO) Close to 1.50 V
Monitor Item Condition Value/Status
Revision: 2010 May2011 QX56

BCS-72
< DTC/CIRCUIT DIAGNOSIS >
U0415 VEHICLE SPEED
U0415 VEHICLE SPEED
DescriptionINFOID:0000000006274834
U0415 is displayed if any unusual condition is present in the reception status of the vehicle speed signal from
the ABS actuator and electric unit (control unit).
DTC LogicINFOID:0000000006274835
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.DTC CONFIRMATION
1. Erase the DTC.
2. Turn ignition switch OFF.
3. Perform the “Self Diagnostic Result” of BCM with CONS ULT-III, when passed 2 seconds or more after the
ignition switch is turned ON.
Is any DTC detected?
YES >> Refer to BCS-72, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006274836
1.ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAG RESULTS
Perform “Self-Diagnostic Result” of ABS actuator and electric unit (control unit) with CONSULT-III. Refer to
BRC-40, "
CONSULT-III Function".
Is any DTC detected?
YES >> Repair or replace the malfunctioning part.
NO >> Replace BCM. Refer to BCS-81, "
Removal and Installation".
DTC CONSULT-III display
description DTC Detection Condition Probable cause
U0415 VEHICLE SPEED When the vehicle speed signal received from
the ABS actuator and elec
tric unit (control
unit) remains abnormal for 2 seconds or more.  ABS actuator and electric unit (control unit)
BCM
Revision: 2010 May2011 QX56

BCS
B2562 LOW VOLTAGEBCS-73
< DTC/CIRCUIT DIAGNOSIS >
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B2562 LOW VOLTAGE
DTC LogicINFOID:0000000006274837
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.DTC CONFIRMATION
1. Erase DTC.
2. Turn ignition switch OFF.
3. Perform the “Self Diagnostic Result ” of BCM with CONSULT-III, when passed 120 seconds or more after
the ignition switch is turned ON.
Is any DTC detected?
YES >> Refer to BCS-73, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006274838
1.CHECK POWER SUPPLY CIRCUIT
Check BCM power supply circuit. Refer to BCS-75, "
Diagnosis Procedure".
Is the circuit normal?
YES >> Replace BCM. Refer to BCS-81, "Removal and Installation".
NO >> Repair the malfunctioning part.
DTC CONSULT-III display
description DTC Detection Condition Possible cause
B2562 LOW VOLTAGE When the power supply voltage to BCM remains less
than 8.8 V for 120 seconds or more Harness or connector (power supply
circuit)
Revision: 2010 May2011 QX56

BR-10
< PERIODIC MAINTENANCE >
BRAKE FLUID
BRAKE FLUID
InspectionINFOID:0000000006222463
BRAKE FLUID LEVEL
 Check that the fluid level in the reservoir tank is within the specified range (MAX – MIN lines).
CAUTION:
Turn OFF the ignition switch an d depress the brake pedal 20 times or more to check brake fluid level.
NOTE:
Since brake fluid is in the accumulator in pressurized condition, the reservoir tank brake fluid level should be
lower than the MAX line.
 Visually check for any brake fluid leakage around the reservoir tank.
 Check the brake system for any leakage if the fl uid level is extremely low (lower than MIN).
 Check the brake system for fluid leakage if the warn ing lamp remains illuminated even after the parking
brake is released.
 Check the reservoir tank for the mixing of foreign matter (e.g. dust) and oils other than brake fluid.
BRAKE LINE
1. Check brake line (tubes and hoses) for cracks, deterioration or other damage. Replace any damaged
parts.
2. Depress the brake pedal with a force of 490 N (50 kg, 110 lb) and hold down the pedal for approx. 5 seconds with the engine
running. Check for any fluid leakage.
CAUTION:
Retighten the applicable conn ection to the specified torque
and repair any abnormal (damag ed, worn or deformed) part
if any brake fluid leakage is present.
DrainingINFOID:0000000006222464
FRONT BRAKE
CAUTION:
 If the brake fluid adheres to the brake caliper assembly and disc rotor, quickly wipe it off.
 Never spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it
off immediately and wash with wate r if it gets on a painted surface.
 Never operate the brake pedal with the reservoir cap removed. Failure to do this may cause the scat-
tering of brake fluid.
 Never operate the brake pedal excessively during the work procedure.
1. Turn the ignition switch ON.
2. Connect a vinyl tube to the bleed valve.
3. Depress the brake pedal and loosen the bleeder valve.
4. Depress the brake pedal several time gradually discharge brake fluid.
REAR BRAKE
CAUTION:
 If the brake fluid adheres to the brake caliper assembly and disc rotor, quickly wipe it off.
 Never spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it
off immediately and wash with wate r if it gets on a painted surface.
 Never operate the brake pedal with the reservoir cap removed. Failure to do this may cause the scat- tering of brake fluid.
 Never operate the brake pedal excessively during the work procedure.
1. Turn the ignition switch ON.
2. Connect a vinyl tube to the bleed valve.
3. Depress the brake pedal and loosen the bleeder valve to gradually discharge brake fluid.
SBR389C
Revision: 2010 May2011 QX56