ABS INFINITI QX56 2011 Factory Service Manual

MWI
COMBINATION METERMWI-35
< ECU DIAGNOSIS INFORMATION >
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ECU DIAGNOSIS INFORMATION
COMBINATION METER
Reference ValueINFOID:0000000006221721
VALUES ON THE DIAGNOSIS TOOL
Monitor Item Condition Value/Status
SPEED METER
[km/h] Ignition switch
ON
While driving Input value of vehicle speed signal
(CAN communication signal)
NOTE:
655.35 is displayed when the malfunc-
tion signal is received
SPEED OUTPUT
[km/h] Ignition switch
ON
While driving Output value of vehicle speed signal
(CAN communication signal)
NOTE:
655.35 is displayed when the malfunc-
tion signal is received
ODO OUTPUT
[km/h or mph] Ignition switch
ON
—Output value of odometer signal (CAN
communication signal)
TACHO METER
[rpm] Ignition switch
ON
Engine running Input value of engine speed signal
(CAN communication signal)
NOTE:
8191.875 is displayed when the mal-
function signal is received
FUEL METER
[L] Ignition switch
ON
— Input value of fuel level sensor signal
W TEMP METER
[ ° C] Ignition switch
ON
—Input value of engine coolant tempera-
ture signal (CAN communication sig-
nal)
NOTE:
215 is displayed when the malfunction
signal is input
ABS W/L Ignition switch
ONABS warning lamp ON On
ABS warning lamp OFF Off
VDC/TCS IND Ignition switch
ONVDC OFF indicator lamp ON On
VDC OFF indicator lamp OFF Off
SLIP IND Ignition switch
ONVDC warning lamp ON On
VDC warning lamp OFF Off
BRAKE W/L Ignition switch
ONBrake warning lamp ON On
Brake warning lamp OFF Off
DOOR W/L Ignition switch
ONDoor open warning ON On
Other than the above Off
HI-BEAM IND Ignition switch
ONHigh-beam indicator lamp ON On
High-beam indicator lamp OFF Off
TURN IND Ignition switch
ONTurn signal indicator lamp ON On
Turn signal indicator lamp OFF Off
FR FOG IND Ignition switch
ONNOTE:
This item is displayed, but cannot be moni-
tored.
Off
RR FOG IND Ignition switch
ONNOTE:
This item is displayed, but cannot be moni-
tored.
Off
Revision: 2010 May2011 QX56

MWI
COMBINATION METERMWI-43
< ECU DIAGNOSIS INFORMATION >
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DTC IndexINFOID:0000000006221723
Warning lamp/indicator lamp ABS warning lamp
The lamp turns ON by suspending communication.
VDC warning lamp
Brake warning lamp
IBA OFF indicator lamp
4WD warning lamp
Malfunction indicator lamp
VDC OFF indicator lamp
CRUISE warning lamp
Low tire pressure warning lamp The lamp blinking caused by suspending communication.
High beam indicator lamp
The lamp turns OFF by suspending communication.
Turn signal indicator lamp
Tail lamp indicator lamp
A/T CHECK indicator lamp
Key warning lamp
AT P w a r n i n g l a m p
Lane departure warning lamp
LDP ON indicator lamp
CRUISE indicator lamp
Oil pressure warning lamp
SNOW mode indicator lamp
TOW mode indicator lamp
CK SUSP indicator lamp
BSW indicator lamp
Function Specifications
Display contents of CONSULT-III Diagnostic item is detected when... Refer to
CAN COMM CIRCUIT
[U1000] When combination meter is not transmitting or receiving CAN communication signal
for 2 seconds or more. MWI-59,
"Diagnosis
Procedure"
CONTROL UNIT (CAN)
[U1010]
When detecting error during the initial diagnosis of the CAN controller of combina-
tion meter. MWI-60, "Diagnosis
Procedure"
VEHICLE SPEED
[B2205]
The abnormal vehicle speed signal is input from the ABS actuator and electric unit
(control unit) for
2 seconds or more. MWI-61, "Diagnosis
Procedure"
ENGINE SPEED
[B2267]
If ECM continuously transmits abnormal engine speed signals for 2 seconds or
more. MWI-62, "Diagnosis
Procedure"
WATER TEMP
[B2268]
If ECM continuously transmits abnormal engine coolant temperature signals for 60
seconds or more. MWI-63, "Diagnosis
Procedure"
Revision: 2010 May2011 QX56

MWI
B2205 VEHICLE SPEEDMWI-61
< DTC/CIRCUIT DIAGNOSIS >
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B2205 VEHICLE SPEED
DescriptionINFOID:0000000006221734
Vehicle speed signal is transmitted from ABS actuator and electric unit (control unit) via CAN communication
to combination meter.
DTC LogicINFOID:0000000006221735
DTC DETECTION LOGIC
Diagnosis ProcedureINFOID:0000000006221736
1.PERFORM SELF-DIAGNOSIS OF ABS ACTUAT OR AND ELECTRIC UNIT (CONTROL UNIT)
Perform “Self Diagnostic Result” of ABS actuator and electric unit (control unit), and repair or replace malfunc-
tioning parts.
>> Refer to BRC-51, "
DTC Index".
DTCDisplay contents of
CONSULT-III Diagnostic item is detected when... Probable malfunction location
B2205 VEHICLE SPEED An abnormal vehicle speed signal is input
from ABS actuator and electric unit (control
unit) for 2 seconds or more  Wheel sensor
 ABS actuator and electric
unit (control unit)
Revision: 2010 May2011 QX56

MWI
COMBINATION METERMWI-85
< REMOVAL AND INSTALLATION >
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REMOVAL AND INSTALLATION
COMBINATION METER
Exploded ViewINFOID:0000000006221776
REMOVAL
Refer to IP-13, "Exploded View".
DISASSEMBLY
Removal and InstallationINFOID:0000000006221777
REMOVAL
1. Remove the cluster lid A. Refer to IP-14, "Removal and Installation".
2. Remove screws and connector, and then remove combination meter.
INSTALLATION
Install in the reverse order of removal.
Disassembly and AssemblyINFOID:0000000006221778
DISASSEMBLY
1. Remove screws.
2. Disengage the tabs to separate front cover.
ASSEMBLY
Assemble in the reverse order of disassembly.
1. Front cover 2. Unified meter control unit
JSNIA3014ZZ
Revision: 2010 May2011 QX56

MWI-88
< REMOVAL AND INSTALLATION >
CLOCK
CLOCK
Exploded ViewINFOID:0000000006221783
REMOVAL
Refer to IP-13, "Exploded View".
Removal and InstallationINFOID:0000000006221784
REMOVAL
1. Remove cluster lid C assembly. Refer to IP-14, "Removal and Installation".
2. Disengage the tabs to separate clock.
INSTALLATION
Install in the reverse order of removal.
Revision: 2010 May2011 QX56

PCS-42
< SYSTEM DESCRIPTION >[POWER DISTRIBUTION SYSTEM]
DIAGNOSIS SYSTEM (BCM)
SELF-DIAG RESULT
Refer to
BCS-57, "DTCIndex".
DATA MONITOR
PW DOWN SET Unlock button pressing time on Intelligent Key button can be selected from the following with
this mode
 MODE 1: 3 sec
 MODE 2: Non-operation
 MODE 3: 5 sec
WELCOME LIGHT SELECT Welcome light function mode can be selected from the following with this mode
 Puddle/Outside Handle
 Room lamp
 Head & Tail Lamps (this item is displayed, but cannot be used)
 Heart Beat
WELCOME LIGHT OP SET Welcome light function mode can be changed to operation with this mode
 On: Operate
 Off: Non-operation
Monitor item Description
Monitor Item Condition
REQ SW -DR Indicates [On/Off] condition of door request switch (driver side)
REQ SW -AS Indicates [On/Off] condition of door request switch (passenger side)
REQ SW -BD/TR Indicates [On/Off] condition of back door request switch
PUSH SW Indicates [On/Off] condition of push-button ignition switch
CLUTCH SW NOTE:
This item is displayed, but cannot be monitored
BRAKE SW 1 Indicates [On/Off]* condition of stop lamp switch power supply
BRAKE SW 2 Indicates [On/Off] condition of stop lamp switch
DETE/CANCL SW Indicates [On/Off] condition of P position
SFT PN/N SW Indicates [On/Off] condition of P or N position
S/L -LOCK Indicates [On/Off] condition of steering lock unit (LOCK)
S/L -UNLOCK Indicates [On/Off] condition of steering lock unit (UNLOCK)
S/L RELAY -F/B Indicates [On/Off] condition of steering lock relay
UNLK SEN -DR Indicates [On/Off] condition of driver door UNLOCK status
PUSH SW -IPDM Indicates [On/Off] condition of push-button ignition switch
IGN RLY1 -F/B Indicates [On/Off] condition of ignition relay 1
DETE SW -IPDM Indicates [On/Off] condition of P position
SFT PN -IPDM Indicates [On/Off] condition of P or N position
SFT P -MET Indicates [On/Off] condition of P position
SFT N -MET Indicates [On/Off] condition of N position
ENGINE STATE Indicates [Stop/Stall/Crank/Run] condition of engine states
S/L LOCK-IPDM Indicates [On/Off] condition of steering lock unit (LOCK)
S/L UNLK-IPDM Indicates [On/Off] condition of steering lock unit (UNLOCK)
S/L RELAY-REQ Indicates [On/Off] condition of steering lock relay
VEH SPEED 1 Display the vehicle speed signal received from combination meter by numerical value [Km/h]
VEH SPEED 2 Display the vehi cle speed signal received from ABS or VDC or TCM by numerical value [Km/h]
DOOR STAT-DR Indicates [LOCK/READY/UNLK] condition of unlock sensor
DOOR STAT-AS Indicates [LOCK/READY/UNLK] condition of passenger side door status
ID OK FLAG Indicates [Set/Reset] condition of key ID
PRMT ENG STRT Indicates [Set/Reset] condition of engine start possibility
Revision: 2010 May2011 QX56

PG
COMPONENT PARTSPG-7
< SYSTEM DESCRIPTION >
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[Example]
HARNESS CONNECTOR (LEVER LOCKING TYPE)
 Lever locking type harness connectors are used on cert
ain control units and control modules such as ECM,
ABS actuator and electric unit (control unit), etc.
 Lever locking type harness connectors are also us ed on super multiple junction (SMJ) connectors.
 Always confirm the lever is fully locked in place by mo ving the lever as far as it will go to ensure full connec-
tion.
CAUTION:
SEL769V
Revision: 2010 May2011 QX56

RSU-1
SUSPENSION
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SECTION RSU
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RSU
N
O PCONTENTS
REAR SUSPENSION
PRECAUTION ................ ...............................2
PRECAUTIONS .............................................. .....2
Precautions for Suspension ................................ ......2
PREPARATION ............................................3
PREPARATION .............................................. .....3
Special Service Tools .......................................... ......3
Commercial Service Tools ........................................3
SYMPTOM DIAGNOSIS ...............................4
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ........................ .....
4
NVH Troubleshooting Chart ................................ ......4
PERIODIC MAINTENANCE ..........................5
REAR SUSPENSION ASSEMBLY ................ .....5
Inspection ............................................................ ......5
WHEEL ALIGNMENT ..........................................6
Inspection ............................................................ ......6
Adjustment ................................................................6
REMOVAL AND INSTALLATION ................8
REAR LOWER LINK & COIL SPRING .......... .....8
Exploded View .................................................... ......8
Removal and Installation ...........................................8
Inspection ..................................................................9
REAR SHOCK ABSORBER ..............................10
Exploded View .................................................... ....10
Removal and Installation ..................................... ....10
Inspection and Adjustment ......................................11
Disposal ...................................................................12
SUSPENSION ARM ..........................................13
Exploded View .........................................................13
Removal and Installation .........................................13
Inspection and Adjustment ......................................13
FRONT LOWER LINK .......................................15
Exploded View .........................................................15
Removal and Installation .........................................15
Inspection ................................................................15
REAR STABILIZER ..........................................17
Exploded View .........................................................17
Removal and Installation .........................................17
Inspection ................................................................17
UNIT REMOVAL AND INSTALLATION ......18
REAR SUSPENSION MEMBER .......................18
Exploded View ..................................................... ....18
Removal and Installation .........................................18
Inspection and Adjustment ......................................19
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .............................................
20
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
20
Wheel Alignment ................................................. ....20
Ball Joint ..................................................................20
Wheel Height ...........................................................20
Revision: 2010 May2011 QX56

RSU-4
< SYMPTOM DIAGNOSIS >
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000006225659
Use chart below to find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
RSU-8
,
RSU-10
, RSU-13
, RSU-15
, RSU-18
RSU-11
—
—
—
RSU-8
, RSU-10
, RSU-13
, RSU-15
, RSU-18
RSU-6RSU-17
NVH in DLN section.
NVH in DLN section.
NVH in RAX and RSU sections.
NVH in WT section.
NVH in WT section.
NVH in RAX section.
NVH in BR section.
NVH in ST section.
Possible cause and SUSPECTED PARTS
Improper installation, looseness
Shock absorber deformation, damage or deflection
Bushing or mounting deterioration
Parts interference
Spring fatigue
Suspension looseness
Incorrect wheel alignment
Stabilizer bar fatigue
PROPELLER SHAFT
DIFFERENTIAL
REAR AXLE AND REAR SUSPENSION
TIRE
ROAD WHEEL
DRIVE SHAFT
BRAKE
STEERING
Symptom REAR SUSPENSION Noise
×××××× ××××××××
Shake ×××× × × ××××××
Vibration ××××× × ×× × ×
Shimmy ×××× × ××× ××
Judder ××× ××× ××
Poor quality ride or
handling ××××× ×× ×××
Revision: 2010 May2011 QX56

REAR SUSPENSION ASSEMBLYRSU-5
< PERIODIC MAINTENANCE >
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PERIODIC MAINTENANCE
REAR SUSPENSION ASSEMBLY
InspectionINFOID:0000000006225660
MOUNTING INSPECTION
Check the mounting conditions (looseness, backlash) of each component and component conditions (wear,
damage) are normal.
BALL JOINT AXIAL END PLAY
Measure axial end play by placing and moving up/down with an iron bar or equivalent between suspension
arm or front lower link and axle assembly.
CAUTION:
• Never depress brake pedal when measuring.
 Never perform with tires on level ground.
 Be careful not to damage ball joint boot.
SHOCK ABSORBER
Check for oil leakage and damage. Replace it if necessary. Axial end play : Refer to
RSU-20, "
Ball Joint".
Revision: 2010 May2011 QX56