display 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-36
< ECU DIAGNOSIS INFORMATION >
COMBINATION METER
LIGHT INDIgnition switch
ONTail lamp indicator lamp ON On
Tail lamp indicator lamp OFF Off
OIL W/L Ignition switch
ONOil pressure warning lamp ON On
Oil pressure warning lamp OFF Off
MIL Ignition switch
ONMalfunction indicator lamp ON On
Malfunction indicator lamp OFF Off
GLOW IND Ignition switch
ONNOTE:
This item is displayed, but cannot be moni-
tored.
Off
CRUISE IND Ignition switch
ONCRUISE indicator ON On
CRUISE indicator OFF Off
SET IND Ignition switch
ONSET indicator ON On
SET indicator OFF Off
CRUISE W/L Ignition switch
ONCRUISE warning lamp ON On
CRUISE warning lamp OFF Off
BA W/L Ignition switch
ONIBA OFF indicator lamp ON On
IBA OFF indicator lamp OFF Off
ATC/T-AMT W/L Ignition switch
ONA/T check warning lamp ON On
A/T check warning lamp OFF Off
ATF TEMP W/L Ignition switch
ONNOTE:
This item is displayed, but cannot be moni-
tored.
Off
4WD W/L Ignition switch
ON4WD warning lamp ON On
4WD warning lamp OFF Off
FUEL W/L Ignition switch
ONDuring low fuel warning indication On
Other than the above Off
WASHER W/L Ignition switch
ONDuring low washer flui
d warning indication On
Other than the above Off
AIR PRES W/L Ignition switch
ONLow tire pressure
warning lamp ON On
Low tire pressure warning lamp OFF Off
KEY G/Y W/L Ignition switch
ONKEY warning lamp (Green/Yellow) ON On
KEY warning lamp (Green/Yellow) OFF Off
KEY KNOB W/L Ignition switch
ONNOTE:
This item is displayed, but cannot be moni-
tored.
Off
AFS OFF IND Ignition switch
ONAFS OFF indicator lamp ON On
AFS OFF indicator lamp OFF Off
DDS W/L Ignition switch
ONNOTE:
This item is displayed, but cannot be moni-
tored.
Off
LANE W/L
Ignition switch
ONLane departure warning lamp ON On
Lane departure warning lamp OFF Off
LDP IND Ignition switch
ONLDP ON indicator lamp ON On
LDP ON indicator lamp OFF Off
AT P W / L Ignition switch
ONATP warning lamp ON On
ATP warning lamp OFF Off
Monitor Item Condition Value/Status
Revision: 2010 May2011 QX56

MWI
COMBINATION METERMWI-37
< ECU DIAGNOSIS INFORMATION >
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DCA IND Ignition switch
ONNOTE:
This item is displayed, but cannot be moni-
tored.
Off
CHECK SUS IND Ignition switch
ONCK SUSP indicator lamp ON On
CK SUSP indicator lamp OFF Off
LCD Ignition switch
ON
During engine start in
formation indication B&P I
Ignition switch
ACC During engine start in
formation indication B&P N
Ignition switch
LOCK During key ID warning indication ID NG
Ignition switch
LOCK During steering lock information indication ROTAT
Ignition switch
LOCK During P position warning indication SFT P
Ignition switch
LOCK During Intelligent Key insert information in-
dication
INSRT
Ignition switch
LOCK During Intelligent Key low battery warning
indication
BATT
Ignition switch
ON During take away warning indication NO KY
Ignition switch
LOCK During key warning indication OUTKY
Ignition switch
ON During ACC warning indication LK WN
ACC TARGET Ignition switch
ONDuring vehicle ahead detection indicator in-
dication
On
Other than the above Off
ACC DISTANCE Ignition switch
ONWhen following distance set to “LONG” LONG
When following distance set to “MIDDLE” MID
When following distance set to “SHORT” SHORT
Set distance indicator not displayed Off
ACC OWN VHL Ignition switch
ONDuring own vehicle indicator indication On
Other than the above Off
ACC SET SPEED Ignition switch
ONDuring set vehicle speed indicator not dis-
played
Off
During set vehicle speed indicator dis-
played Indicates the set vehicle speed
ACC UNIT Ignition switch
ONSet vehicle speed indicator unit display ON On
Set vehicle speed indicator unit display OFF Off
Monitor Item Condition Value/Status
Revision: 2010 May2011 QX56

MWI-38
< ECU DIAGNOSIS INFORMATION >
COMBINATION METER
SHIFT INDIgnition switch
ONDuring the indication of “P” by shift position
indicator
P
During the indication of “R” by shift position
indicator R
During the indication of “N” by shift position
indicator N
During the indication of “D” by shift position
indicator D
During the indication of “M1” by shift posi-
tion indicator M1
During the indication of “M2” by shift posi-
tion indicator M2
During the indication of “M3” by shift posi-
tion indicator M3
During the indication of “M4” by shift posi-
tion indicator M4
During the indication of “M5” by shift posi-
tion indicator M5
During the indication of “M6” by shift posi-
tion indicator M6
During the indication of “M7” by shift posi-
tion indicator M7
4WD IND Ignition switch
ON4WD shift switch in AUTO position AUTO
4WD shift switch in 4H position LOCK
4WD shift switch in 4L position LOCK/4Lo
BSW IND Ignition switch
ONNOTE:
This item is displayed, but cannot be moni-
tored.
Off
BSW W/L Ignition switch
ONBSW warning lamp ON On
BSW warning lamp OFF Off
AT S MODE SW Ignition switch
ONSnow mode switch ON On
Snow mode switch OFF Off
M RANGE SW Ignition switch
ONSelector lever in manual mode position On
Other than the above Off
NM RANGE SW Ignition switch
ONSelector lever in manual mode position Off
Other than the above On
AT SFT UP SW Ignition switch
ONSelector lever in + position On
Other than the above Off
AT SFT DWN SW Ignition switch
ONSelector lever in – position On
Other than the above Off
PKB SW Ignition switch
ONParking brake switch ON On
Parking brake switch OFF Off
BUCKLE SW Ignition switch
ONDriver seat belt not fastened On
Driver seat belt fastened Off
BRAKE OIL SW Ignition switch
ONBrake fluid level switch ON On
Brake fluid level switch OFF Off
A/C AMP CONN Ignition switch
ONNOTE:
This item is displayed, but cannot be moni-
tored.
Off
Monitor Item Condition Value/Status
Revision: 2010 May2011 QX56

MWI
COMBINATION METERMWI-39
< ECU DIAGNOSIS INFORMATION >
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NOTE:
Some items are not available according to vehicle specification.
TERMINAL LAYOUT
PHYSICAL VALUES
TOW MODE IND Ignition switch
ONTOW mode indicator lamp ON On
TOW mode indicator lamp OFF Off
ENTER SW Ignition switch
ONWhen switch (enter switch) is pressed
On
Other than above Off
SELECT SW Ignition switch
ONWhen switch (select switch) is pressed
On
Other than above Off
DISTANCE
[km] Ignition switch
ON
—Distance to empty calculated by com-
bination meter
OUTSIDE TEMP
[ ° C or °F] Ignition switch
ON
—Equivalent to ambient temperature
NOTE:
This may not match the indicated value
on the information display.
FUEL LOW SIG Ignition switch
ONDuring low fuel warning indication On
Other than above Off
BUZZER Ignition switch
ONBuzzer ON On
Buzzer OFF Off
Monitor Item Condition Value/Status
JPNIA0968GB
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
+ – Signal name Input/
Output
1
(Y) Ground Battery power supply Input Ignition
switch
OFF— Battery voltage
2
(GR) Ground Ignition signal Input Ignition
switch
ON
— Battery voltage
3
(B) Ground Ground — Ignition
switch
ON—0 V
7
(R) Ground TOW mode signal Input Ignition
switch
ONWhen TOW mode switch is
pressed
0 V
Other than the above 12 V
8
(P/L) Ground Trip reset switch signal Input Ignition
switch
ONWhen trip reset switch is
pressed
0 V
Other than the above 5 V
Revision: 2010 May2011 QX56

MWI-42
< ECU DIAGNOSIS INFORMATION >
COMBINATION METER
Fail-Safe
INFOID:0000000006221722
FA I L - S A F E
The combination meter activates the fail-safe contro l if CAN communication with each unit is malfunctioning.
37
(R/Y) Ground Non-manual mode signal Input Ignition
switch
ONSelector manual mode po-
sition
12 V
Other than the above 0 V
38
(L/W) Ground Manual mode shift down
signal InputIgnition
switch
ON Selector lever DOWN oper-
ation
0 V
Other than the above 12 V
39
(Y/B) Ground Manual mode shift up sig-
nal InputIgnition
switch
ON Selector lever UP operation 0 V
Other than the above 12 V
40
(G/W) Ground Manual mode signal Input Ignition
switch
ONSelector manual mode po-
sition
0 V
Other than the above 12 V
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
+ – Signal name Input/
Output
Function Specifications
Speedometer
Reset to zero by suspending communication.
Tachometer
Engine coolant temperature gauge
Engine oil pressure gauge
Illumination control When suspending communication, changes to nighttime mode.
Information display Odo/trip meter An indicated value is maintained at communications blackout.
Shift position indicator The display turns OFF by suspending communication.
Door open warning The display turns OFF by suspending communication.
Buzzer The buzzer turns OFF by suspending communication.
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-58
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORKFLOW (METER SYSTEM)
 Check the symptom based on the inform ation obtained from the customer.
 Check that any other malfunctions are present.
>> GO TO 3.
3.CHECK ON BOARD DIAGNOSIS OPERATION
Check that the on board diagnosis function operates. Refer to MWI-29, "
On Board Diagnosis Function".
Does the on board diagnosis function operate normally?
YES >> GO TO 4.
NO >> GO TO 6.
4.CHECK CONSULT-III SELF-DIAGNOSIS RESULTS
Connect CONSULT-III and perform self-diagnosis. Refer to MWI-30, "
CONSULT-III Function".
Are self-diagnosis results normal?
YES >> GO TO 5.
NO >> GO TO 8.
5.NARROW DOWN THE MALFUNCTIONING PARTS BY SYMPTOM DIAGNOSIS
Perform symptom diagnosis and narrow down the malfunctioning parts.
>> GO TO 8.
6.CHECK COMBINATION METER POWE R SUPPLY AND GROUND CIRCUITS
Check combination meter power supply and ground circuits. Refer to MWI-64, "
COMBINATION METER :
Diagnosis Procedure".
Is inspection result OK?
YES >> GO TO 7.
NO >> GO TO 8.
7.REPLACE COMBINATION METER
Replace combination meter.
>> GO TO 9.
8.REPAIR OR REPLACE MALFUNCTIONING PARTS
Repair or replace the malfunctioning parts.
NOTE:
If DTC is displayed, erase DTC after repair or replace malfunctioning parts.
>> GO TO 9.
9.FINAL CHECK
Check that the combination meter operates normally.
Do they operate normally?
YES >> INSPECTION END
NO >> GO TO 1.
Revision: 2010 May2011 QX56

MWI
U1000 CAN COMM CIRCUITMWI-59
< DTC/CIRCUIT DIAGNOSIS >
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DTC/CIRCUIT DIAGNOSIS
U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000006221728
CAN (Controller Area Network) is a serial communication system for real time application. It is an on-vehicle
multiplex communication system with high data communi cation speed and excellent error detectability. Many
electronic control units are equipped onto vehicles, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with two communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with
less wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart. Refer to LAN-28, "
CAN COMMUNICATION SYSTEM : CAN Communica-
tion Signal Chart".
DTC LogicINFOID:0000000006221729
DTC DETECTION LOGIC
Diagnosis ProcedureINFOID:0000000006221730
1.PERFORM SELF DIAGNOSTIC
1. Turn ignition switch ON and wait for 2 seconds or more.
2. Check “Self Diagnostic Result” of “METER/M&A”.
Is
“CAN COMM CIRCUIT” displayed?
YES >> Refer to LAN-18, "Trouble Diagnosis Flow Chart".
NO >> Refer to GI-40, "
Intermittent Incident".
DTCDisplay contents of
CONSULT-III Diagnostic item is detected when... Probable malfunction location
U1000 CAN COMM CIRCUIT When combination meter is not transmitting or
receiving CAN communication signal for 2
seconds or more.
CAN communication system
Revision: 2010 May2011 QX56

MWI-60
< DTC/CIRCUIT DIAGNOSIS >
U1010 CONTROL UNIT (CAN)
U1010 CONTROL UNIT (CAN)
DescriptionINFOID:0000000006221731
Initial diagnosis of combination meter.
DTC LogicINFOID:0000000006221732
DTC DETECTION LOGIC
Diagnosis ProcedureINFOID:0000000006221733
1.REPLACE COMBINATION METER
When DTC “U1010” is detected, replace combination meter.
>> INSPECTION END
DTCDisplay contents of CON-
SULT-III Diagnostic item is detected when... Probable malfunction location
U1010 CONTROL UNIT (CAN) When detecting error during the initial diagno-
sis of the CAN controller of combination
meter.
Combination meter
Revision: 2010 May2011 QX56