2011 INFINITI QX56 display

EXL-22
< SYSTEM DESCRIPTION >[XENON TYPE]
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Fu
nction (BCM - COMMON ITEM)INFOID:0000000006368037
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

EXL-24
< SYSTEM DESCRIPTION >[XENON TYPE]
DIAGNOSIS SYSTEM (BCM)
*1: Factory setting
*
2: For models for Canada, this item is displayed but is not operated.
DATA MONITOR
BATTERY SAVER SET On*1With the exterior lamp battery saver function
Off Without the exterior lamp battery saver function
ILL DELAY SET MODE 1*
145 sec.
Sets delay timer function timer operation time
(All doors closed)
MODE 2
Without the
function
MODE 3 30 sec.
MODE 4 60 sec.
MODE 5 90 sec.
MODE 6 120 sec.
MODE 7 150 sec.
MODE 8 180 sec.
AUTO LIGHT LOGIC SET*
2
MODE 1*1With twilight ON custom & with wiper INT, LO and HI
MODE 2 With twilight ON custom & with wiper LO and HI
MODE 3 With twilight ON custom & without
MODE 4 Without twilight ON custom & with wiper INT, LO and HI
MODE 5 Without twilight ON custom & with wiper LO and HI
MODE 6 Without twilight ON custom & without
Service item Setting item Setting
Monitor item
[Unit] Description
PUSH SW
[On/Off] The switch status input from push-button ignition switch
ENGINE STATE
[Stop/Stall/Crank/Run] The engine status received from ECM via CAN communication
VEH SPEED 1
[km/h] The value of the vehicle speed received from combination meter via CAN communi-
cation
TURN SIGNAL R
[On/Off]
Each switch status that BCM judges from the combination switch reading function
TURN SIGNAL L
[On/Off]
TA I L L A M P S W
[On/Off]
HI BEAM SW
[On/Off]
HEAD LAMP SW1
[On/Off]
HEAD LAMP SW2
[On/Off]
PASSING SW
[On/Off]
AUTO LIGHT SW
[On/Off]
FR FOG SW
[On/Off]
RR FOG SW
[On/Off]
NOTE:
This item is indicated, but can not monitored
Revision: 2010 May2011 QX56

DIAGNOSIS SYSTEM (BCM)EXL-25
< SYSTEM DESCRIPTION > [XENON TYPE]
C
D
E
F
G H
I
J
K
M A
B
EXL
N
O P
ACTIVE TEST
*: Only models for Canada display this item.
FLASHER
FLASHER : CONSULT-III F unction (BCM - FLASHER)INFOID:0000000006213912
WORK SUPPORT
DOOR SW-DR
[On/Off] The switch status input from front door switch (driver side)
DOOR SW-AS
[On/Off] The switch status input from front door switch (passenger side)
DOOR SW-RR
[On/Off] The switch status input from rear door switch RH
DOOR SW- RL
[On/Off] The switch status input from rear door switch LH
DOOR SW-BK
[On/Off] The switch status input from back door switch
OPTICAL SENSOR
[On/Off] The sensor status input from optical sensor
OPTI SEN (DTCT)
[V] The value of outside brightness voltage input from the optical sensor
OPTI SEN (FILT)
[V] The value of outside brightness voltage filtered by BCM
Monitor item
[Unit] Description
Test item Operation Description
TAIL LAMP On
Transmits the position light request signal to IPDM E/R via CAN commu-
nication to turn the tail lamp ON
Off Stops the tail lamp request signal transmission
HEAD LAMP Hi
Transmits the high beam request signal via CAN communication to turn
the headlamp (HI)
Lo Transmits the low beam request signal via CAN communication to turn
the headlamp (LO)
Off Stops the high & low beam request signal transmission
FR FOG LAMP On
Transmits the front fog lights request signal to IPDM E/R via CAN com-
munication to turn the front fog lamp ON
Off Stops the front light request signal transmission
RR FOG LAMP On
NOTE:
This item is indicated, but can not tested
Off
DAYTIME RUNNING LIGHT* On
Transmits the front fog lights request signal to IPDM E/R via CAN com-
munication to turn the front fog lamp ON (daytime running light system)
Off Stops the front light request signal transmission (daytime running light
system)
ILL DIM SIGNAL On Transmits the dimmer signal to combination meter via CAN communi-
cation and dims combination meter
 Transmits the dimmer signal to AV control unit and dims display
Off Stops the dimmer signal transmission
Revision: 2010 May2011 QX56

DIAGNOSIS SYSTEM (IPDM E/R)EXL-29
< SYSTEM DESCRIPTION > [XENON TYPE]
C
D
E
F
G H
I
J
K
M A
B
EXL
N
O P
CONSULT-III Function (IPDM E/R)INFOID:0000000006368067
APPLICATION ITEM
CONSULT-III performs the following functi ons via CAN communication with IPDM E/R.
SELF DIAGNOSTIC RESULT
Refer to PCS-22, "DTCIndex".
DATA MONITOR
Monitor item
Oil pressure warning lamp does not operate Perform auto active test.
Does the oil pressure warning
lamp blink?YES
 Harness or connector be-
tween IPDM E/R and oil
pressure switch
 Oil pressure switch
 IPDM E/R
NO  CAN communication signal
between IPDM E/R and
BCM
 CAN communication signal
between BCM and combi-
nation meter
 Combination meter
Symptom Inspection contents Possible cause
Diagnosis mode Description
Ecu Identification Allows confirmation of IPDM E/R part number.
Self Diagnostic Result Displays the diagnosis results judged by IPDM E/R.
Data Monitor Displays the real-time input/output data from IPDM E/R input/output data.
Active Test IPDM E/R can provide a drive signal to electronic components to check their operations.
CAN Diag Support Monitor The results of transmit/receive diagnosis of CAN communication can be read.
Monitor Item [Unit] MAIN SIG-
NALS Description
RAD FAN REQ
[1/2/3/4] ×Displays the value of the cooling fan speed request signal received from ECM via
CAN communication.
AC COMP REQ
[Off/On] ×Displays the status of the A/C compressor request signal received from ECM via
CAN communication.
TAIL&CLR REQ
[Off/On] ×
Displays the status of the position light request signal received from BCM via CAN
communication.
HL LO REQ
[Off/On] ×Displays the status of the low beam request signal received from BCM via CAN
communication.
HL HI REQ
[Off/On] ×Displays the status of the high beam request signal received from BCM via CAN
communication.
FR FOG REQ
[Off/On] ×Displays the status of the front fog light request signal received from BCM via
CAN communication.
FR WIP REQ
[Stop/1LOW/Low/Hi] ×
Displays the status of the front wiper request signal received from BCM via CAN
communication.
WIP AUTO STOP
[STOP P/ACT P] ×
Displays the status of the front wiper auto stop signal judged by IPDM E/R.
WIP PROT
[Off/BLOCK] ×
Displays the status of the front wiper fail-safe operation judged by IPDM E/R.
IGN RLY1 -REQ
[Off/On] Displays the status of the ignition switch ON signal received from BCM via CAN
communication.
IGN RLY
[Off/On] ×
Displays the status of the ignition relay judged by IPDM E/R.
Revision: 2010 May2011 QX56

EXL-30
< SYSTEM DESCRIPTION >[XENON TYPE]
DIAGNOSIS SYSTEM (IPDM E/R)
ACTIVE TEST
Te s t i t e m
PUSH SW
[Off/On]Displays the status of the push-button ignition switch judged by IPDM E/R.
INTER/NP SW
[Off/On] Displays the status of the shift position judged by IPDM E/R.
ST RLY CONT
[Off/On] Displays the status of the starter relay status signal received from BCM via CAN
communication.
IHBT RLY -REQ
[Off/On] Displays the status of the starter control relay signal received from BCM via CAN
communication.
ST/INHI RLY
[Off/ ST ON/INHI ON/UNKWN] Displays the status of the starter relay and starter control relay judged by IPDM
E/R.
DETENT SW
[Off/On] Displays the status of the A/T shift selector (detention switch) judged by IPDM E/
R.
S/L RLY -REQ
[Off/On] Displays the status of the steering lock relay signal received from BCM via CAN
communication.
S/L STATE
[LOCK/UNLK/UNKWN] Displays the status of the steering lock judged by IPDM E/R.
OIL P SW
[Open/Close] Displays the status of the oil pressure switch judged by IPDM E/R.
HOOD SW
[Off/On] Displays the status of the hood switch judged by IPDM E/R.
HL WASHER REQ
[Off/On] Displays the status of the headlamp washer request signal received from BCM via
CAN communication.
THFT HRN REQ
[Off/On] Displays the status of the theft warning horn request signal received from BCM
via CAN communication.
HORN CHIRP
[Off/On] Displays the status of the horn reminder signal received from BCM via CAN com-
munication.
Monitor Item
[Unit] MAIN SIG-
NALS Description
Test item Operation Description
CORNERING LAMP LH
NOTE:
This item is indicated, but cannot be tested.
RH
HORN On Operates horn relay for 20 ms.
REAR DEFOGGER Off OFF
On Operates the rear window defogger relay.
FRONT WIPER Off OFF
Lo Operates the front wiper relay.
Hi Operates the front wiper relay and front wiper high relay.
MOTOR FAN* 1OFF
2 Transmits 50% pulse duty signal (PWM signal) to the cooling fan control module.
3 Transmits 75% pulse duty signal (PWM signal) to the cooling fan control module.
4
Transmits 100% pulse duty signal (PWM signal) to the cooling fan control mod-
ule.
HEAD LAMP WASHER On Operates the headlamp washer relay for 1 second.
Revision: 2010 May2011 QX56

EXL-32
< SYSTEM DESCRIPTION >[XENON TYPE]
DIAGNOSIS SYSTEM (AFS)
DIAGNOSIS SYSTEM (AFS)
CONSULT-III Function (ADAPTIVE LIGHT)INFOID:0000000006213915
APPLICATION ITEM
WORK SUPPORT
*: Adjusts the steering angle sensor neutral position on ABS actuator and electrical unit (control unit) side. Refer to
BRC-64, "Work Pro-
cedure".
DATA MONITOR
*: The swivel angle "0°" (feedback value) of the swivel position sensor signal may differ from the swivel angle "0 °" of the swivel motor
(AFS control unit command value). This causes that the swivel motor initializes the value based on the step number from the sto pper.
ACTIVE TEST
Diagnostic mode Description
Ecu Identification Allows confirmation of AFS control unit part number.
Self Diagnostic Result Displays the diagnosis results judged by AFS control unit.
Work support Sets each sensor.
Data monitor Indicates AFS control unit input data in real time.
Active test Provides the drive signal to the load. Checks operation.
Service item Description
ST ANG SEN ADJUSTMENT
*—
LEVELIZER ADJUSTMENT Adjusts the height sensor signal output value (AFS control unit recognized) in the un-
loaded vehicle condition.
Monitor item
[Unit] Description
STR ANGLS SIG
[deg] The steering angle value judged by the steering angle sensor signal received from
the steering angle sensor via CAN communication
VHCL SPD
[km/h] The vehicle speed signal value from the combination meter via CAN communication
SLCT LVR POSI
[P/R/N/D/M/FF] The selector lever status judged by the position indicator signal received from TCM
via CAN communication
HEAD LAMP
[On/Off] The headlamp On/Off status judged by the low beam headlamp (ON) signal received
from IPDM E/R via
CAN communication
AFS SW
[On/Off] The AFS On/Off status judged by AFS control unit
HI SEN OTP RR
[V] The rear height sensor signal voltage value input from the rear height sensor
HI SEN OTP FR
[V] The front height sensor signal voltage value input from the front height sensor
LEV ACTR VLTG
[%] The ratio value to the battery voltage generated by the levelizer activation signal con-
trol value judged by AFS control unit
SWVL SEN RH
*
[deg] The head lamp swivel angle value judged by AFS control unit received from the swiv-
el position sensor signal input from the swivel actuator
SWVL SEN LH
*
[deg]
SWVL ANGLE RH
*
[deg]
The swivel angle command value to the swivel motor judged by AFS control unit
SWVL ANGLE LH
*
[deg]
Revision: 2010 May2011 QX56

AFS CONTROL UNITEXL-39
< ECU DIAGNOSIS INFORMATION > [XENON TYPE]
C
D
E
F
G H
I
J
K
M A
B
EXL
N
O P
DTC Inspection Priority ChartINFOID:0000000006213919
If some DTCs are displayed at the same time, per form inspections one by one based on the following priority
chart.
NOTE:
 If DTC U1000 is displayed with other DTC, fi rst perform the trouble diagnosis for DTC U1000.
 If DTC U1010 is displayed with other DTC, fi rst perform the trouble diagnosis for DTC U1010.
DTC IndexINFOID:0000000006213920
×: Applicable
Priority Detected items (DTC)
1  U1000: CAN COMM CIRCUIT
 U1010: CONTROL UNIT (CAN)
2  B2519: LEVELIZER CALIB
 B2521: ECU CIRC
 C0428: ST ANG SEN CALIB
3  B2503: SWIVEL ACTUATOR [RH]
 B2504: SWIVEL ACTUATOR [LH]
 B2513: HI SEN UNUSUAL [FR]
 B2514: HI SEN UNUSUAL [RR]
 B2516: SHIFT SIG [P, R]
 B2517: VEHICLE SPEED SIG
 C0126: ST ANG SEN SIG
CONSULT display Fail-safe
AFS OFF indicator
lamp Reference
U1000: CAN COMM CIRCUIT ××EXL-82
U1010: CONTROL UNIT (CAN) ××EXL-83
B2503: SWIVEL ACTUATOR [RH] ××EXL-63
B2504: SWIVEL ACTUATOR [LH] ××EXL-63
B2513: HI SEN UNUSUAL [FR] ×EXL-68
B2514: HI SEN UNUSUAL [RR] ×EXL-71
B2516: SHIFT SIG [P, R] ××EXL-74
B2517: VEHICLE SPEED SIG ××EXL-75
B2519: LEVELIZER CALIB ×EXL-76
B2521: ECU CIRC ××EXL-77
C0126: ST ANG SEN SIG ××EXL-80
C0428: ST ANGLE SEN CALIB ××EXL-81
Revision: 2010 May2011 QX56

EXL-82
< DTC/CIRCUIT DIAGNOSIS >[XENON TYPE]
U1000 CAN COMM CIRCUIT
U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000006213948
CAN (Controller Area Network) is the serial transmissi
on for real time application. CAN is the multiplex com-
munication for the vehicle with superior data transmi ssion speed and error detection ability. Many electronic
control units are equipped on the vehicle. These control units do not operate individually, but associates with
other control units by sharing information. In CA N communication, each control unit is connected with two
communication lines (CAN-H and CAN-L). Much inform ation is transmitted with fewer communication lines
than before. Each control unit transmits/rec eives data and reads the necessary data only.
CAN Communication Signal Chart. Refer to LAN-27, "
CAN COMMUNICATION SYSTEM : CAN System Spec-
ification Chart".
DTC LogicINFOID:0000000006213949
DTC DETECTION LOGIC
Diagnosis ProcedureINFOID:0000000006213950
1.PERFORM SELF DIAGNOSTIC
1. Turn ignition switch ON and wait for 2 seconds or more.
2. Check “Self Diagnostic Result”.
Is
“CAN COMM CIRCUIT” displayed?
YES >> Refer to LAN-18, "Trouble Diagnosis Flow Chart".
NO >> Refer to GI-40, "
Intermittent Incident".
DTC No. Trouble diagnosis name DTC detection condition Possible causes
U1000 CAN communication circuit When AFS control unit does not trans-
mit/receive CAN communication signal
continuously for 2 seconds or more
CAN communication system
Revision: 2010 May2011 QX56