2011 INFINITI QX56 lock

SYSTEMADP-19
< SYSTEM DESCRIPTION >
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2. Driver seat and steering column will return from the exiting position to entry position.
OPERATION CONDITION
Satisfy all of the following items. The entry assist f unction is not performed if these items are not satisfied.
DETAIL FLOW
INTELLIGENT KEY INTERLOCK FUNCTION
Item Request status
Seat, steering column The vehicle is not moved after performing the
exit assist function.
Switch inputs
 Power seat switch
 Tilt & telescopic switch
 Door mirror control switch
 Set switch
 Memory switch OFF
(Not operated)
Vehicle speed 0 Km/h (0 MPH)
Sta rte r OFF
Transmission A/T
CONSULT-III Not connected
Order Input Output Control unit condition
1 Ignition switch — Driver seat control unit receives the signals of [ignition switch signal]
from BCM via CAN communication.
2— Motors
(Sliding, tilt)Driver side control unit operates the sliding motor when the operating
conditions are satisfied and requests the operations of tilt motor to
automatic drive positioner control unit via UART communication. The
automatic drive positioner operates each motor.
3 Sensors
(Sliding, tilt) —Each sensor monitors the operating positions of seat and steering,
and then stops the operation of each motor when each part reaches
the recorded address.
Revision: 2010 May2011 QX56

ADP-20
< SYSTEM DESCRIPTION >
SYSTEM
INTELLIGENT KEY INTERLOCK FUNCTION : System Diagram
INFOID:0000000006248313
INTELLIGENT KEY INTERLOCK F UNCTION : System DescriptionINFOID:0000000006248314
 By associating Intelligent Key and automatic drive po sitioner system, the unlock operation of Intelligent Key
or driver side door request switch performs me mory function and entry/exit assist function.
 Registration of Intelligent Key interlock function can regist er a different key ID to the driver seat control unit,
one by one, for memory switch 1 and 2. A total of 2 key IDs can be registered.
 When ignition switch is OFF (steering lock unit status ), and door unlock operation is performed using Intelli-
gent Key or driver side door request swit ch, driver seat automatically adjusts to a driving position other than
seat sliding. Seat sliding and steering column tilt perform return operation and are set to standby status.
 In standby status, when ignition switch is operated from OFF to ACC, return operation sets seat sliding and
steering column tilt to a registered position.
NOTE:
 When another key ID is newly registered to a key switch to which a key ID is already registered, the previ-
ously registered key ID is overwritten and becomes unusable.
 When starter signal turns ON during return operation, the operation is interrupted, starter signal turns from
ON to OFF, and operation restarts.
OPERATION PROCEDURE
1. Unlock driver door by Intelligent Key or driver side door request switch.
2. Operation other than memory functi on of seat sliding is performed. Seat sliding and steering column tilt
perform exit assist operation.
3. Turn ignition switch ACC.
4. Driver seat and steering column will return from the exiting position to entry position.
NOTE:
Further information for Intelligent Key interlock function. Refer to ADP-54, "
INTELLIGENT KEY INTERLOCK
STORING : Description".
OPERATION CONDITION
Satisfy all of the following items. The Intelligent Key interlock function is not performed if these items are not
satisfied.
JMJIA3778GB
Revision: 2010 May2011 QX56

SYSTEMADP-21
< SYSTEM DESCRIPTION >
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DETAIL FLOW
Fail SafeINFOID:0000000006248315
The fail-safe mode may be activated if the following symptoms are observed.
Item Request status
Ignition position OFF
Intelligent key interlock function Registered
Steering lock unit status LOCK
Switch inputs
 Power seat switch
 Tilt & telescopic switch
 Door mirror control switch
 Set switch
 Memory switch OFF
(Not operated)
A/T shift selector P position
Order Input Output Control unit condition
1  Door unlock signal
(CAN)
 Key ID signal (CAN) —Driver seat control unit receives unlock signal and key ID signal from
BCM, when driver seat control unit is unlocked by Intelligent Key or
driver side door request switch.
2— — Driver seat control unit performs the seat slide and steering tilt move
directly to the exit assist function. Other loads move to the exit assist
function after performing memory function.
3 — — Driver seat control unit performs the entry assist function.
Operating in
fail-safe mode Malfunction Item
Related
DTC Diagnosis
Only manual functions operate normally. CAN communication U1000
ADP-56
CONTROL UNIT U1010ADP-57
EEPROM B2130ADP-66
Only manual functions, except door mirror, operate normally. UART communication B2128 ADP-64
Only manual functions, except seat sliding, operate normally. Seat sliding output B2112ADP-58
Only manual functions, except seat reclining, operate normally. Seat reclining output B2113ADP-60
Only manual functions, except steering tilt, operate normally. Steering column tilt output B2116ADP-62
Revision: 2010 May2011 QX56

ADP-22
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (DRIVER SEAT CONTROL UNIT)
DIAGNOSIS SYSTEM (DRIVER SEAT CONTROL UNIT)
CONSULT-III FunctionINFOID:0000000006248316
The automatic drive positioner system can be c hecked and diagnosed for component operation using CON-
SULT-III.
APPLICATION ITEMS
SELF-DIAGNOSIS RESULTS
Refer to ADP-31, "DTCIndex".
DATA MONITOR
Diagnostic mode Description
Ecu Identification Displays part numbers of driver seat control unit.
Self Diagnostic Result Performs self-diagnosis for the auto drive positioner system and displays the results.
Data Monitor Displays input signals transmitted from various switches and sensors to driver seat control unit
in real time.
Active Test Drives each output unit.
Work support Changes the setting for each system function.
Monitor Item Unit Main
Signals Selection
From
Menu Contents
STARTER SW “ON/OFF” ××Ignition key switch ON (START, ON) /OFF (ACC, OFF) sta-
tus judged from the ignition switch signal.
SET SW “ON/OFF” ××ON/OFF status judged from the setting switch signal.
MEMORY SW 1 “ON/OFF” ××ON/OFF status judged from the seat memory switch 1 sig-
nal.
MEMORY SW 2 “ON/OFF” ××ON/OFF status judged from the seat memory switch 2 sig-
nal.
DETENT SW “ON/OFF” ××The A/T shift selector position
“OFF (P position) / ON (other
than P position)” judged from the detention switch signal.
STEERING STATUS “LOCK/UN-
LOCK” ××
LOCK/UNLOCK status judged from steering lock unit.
SLIDE SW–FR “ON/OFF” ××ON/OFF status judged from the sliding switch (forward) sig-
nal.
SLIDE SW–RR “ON/OFF” ××ON/OFF status judged from the sliding switch (backward)
signal.
RECLN SW–FR “ON/OFF” ××ON/OFF status judged from the reclining switch (forward)
signal.
RECLN SW–RR “ON/OFF” ××ON/OFF status judged from the reclining switch (backward)
signal.
LIFT FR SW–UP “ON/OFF” ××ON/OFF status judged from the lifting switch front (up) sig-
nal.
LIFT FR SW–DN “ON/OFF” ××ON/OFF status judged from the lifting switch front (down)
signal.
LIFT RR SW–UP “ON/OFF” ××ON/OFF status judged from the lifting switch rear (up) sig-
nal.
LIFT RR SW–DN “ON/OFF” ××ON/OFF status judged from the lifting switch rear (down)
signal.
TILT SW-UP “ON/OFF” ××ON/OFF status judged from the tilt switch (up) signal.
TILT SW-DOWN “ON/OFF” ××ON/OFF status judged from the tilt switch (down) signal.
Revision: 2010 May2011 QX56

DIAGNOSIS SYSTEM (DRIVER SEAT CONTROL UNIT)
ADP-23
< SYSTEM DESCRIPTION >
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TELESCO SW-FR “ON/OFF” ××ON/OFF status judged from the telescoping switch (for-
ward) signal.
TELESCO SW-RR “ON/OFF” ××ON/OFF status judged from the telescoping switch (back-
ward) signal.
MIR CON SW–UP “ON/OFF” ××ON/OFF status judged from the mirror switch (up) signal.
MIR CON SW–DN “ON/OFF” ××ON/OFF status judged from the mirror switch (down) signal.
MIR CON SW–RH “ON/OFF” ××ON/OFF status judged from the door mirror remote control
switch (passenger side) signal.
MIR CON SW–LH “ON/OFF” ××ON/OFF status judged from the door mirror remote control
switch (driver side) signal.
MIR CHNG SW–R “ON/OFF” ××ON/OFF status judged from the door mirror remote control
switch (switching to right) signal.
MIR CHNG SW–L “ON/OFF” ××ON/OFF status judged from the door mirror remote control
switch (switching to left) signal.
VEHICLE SPEED — ××Display the vehicle speed signal received from combination
meter by numerical value [km/h].
P RANG SW CAN “ON/OFF” ××ON/OFF status judged from the P range switch signal.
R RANGE (CAN) “ON/OFF” ××ON/OFF status judged from the R range switch signal.
DOOR SW–FL “ON/OFF” ××ON/OFF status judged from the door switch (front driver
side) signal.
DOOR SW–FR “ON/OFF” ××ON/OFF status judged from the door switch (front passen-
ger side) signal.
IGN ON SW “ON/OFF” ××ON/OFF status judged from the ignition switch signal.
ACC ON SW “ON/OFF” ××ON/OFF status judged from the ACC switch signal.
KEY ON SW “ON/OFF” ××ON/OFF status judged from the key on switch signal.
KEYLESS ID — ××Key ID status judged from the key ID signal.
KYLS DR UNLK “ON/OFF” ××ON/OFF status judged from the driver side door unlock ac-
tuator output switch signal.
VHCL SPEED (ABS) “ON/OFF” ××ON/OFF status judged from vehicle speed signal.
HANDLE “RHD/LHD” ××RHD/LHD status judged from handle position signal.
TRANSMISSION “AT or CVT/
MT” ××
AT or CVT/MT status judged from transmission.
SLIDE PULSE — – ×Value (32768) when battery connections are standard. If it
moves backward, the value increases. If it moves forward,
the value decreases.
RECLN PULSE — – ×Value (32768) when battery connections are standard. If it
moves backward, the value increases. If it moves forward,
the value decreases.
LIFT FR PULSE — – ×Value (32768) when battery connections are standard. If it
moves DOWN, the value increases. If it moves UP, the val-
ue decreases.
LIFT RR PULSE — – ×Value (32768) when battery connections are standard. If it
moves DOWN, the value increases. If it moves UP, the val-
ue decreases.
MIR/SEN RH U–D “V” – ×Voltage input from door mirror sensor (passenger side) up/
down is displayed.
MIR/SEN RH R–L “V” – ×Voltage input from door mirror sensor (passenger side) left/
right is displayed.
MIR/SENLHU–D “V” – ×Voltage input from door mirror
sensor (driver side) up/down
is displayed.
Monitor Item Unit
Main
Signals Selection
From
Menu Contents
Revision: 2010 May2011 QX56

ADP-26
< ECU DIAGNOSIS INFORMATION >
DRIVER SEAT CONTROL UNIT
TELESCO SW-FR Telescopic switchForward ON
Other than the above OFF
TELESCO SW-RR Telescopic switch Backward ON
Other than the above OFF
DETENT SW A/T shift selector P position OFF
Other than the above ON
STARTER SW Ignition position Cranking ON
Other than the above OFF
SLIDE PULSE Seat sliding Forward The numeral value decreases *
Backward The numeral value increases*
Other than the above No change to numeral value*
RECLN PULSE Seat reclining Forward The numeral value decreases*
Backward
The numeral value increases
*
Other than the above
No change to numeral value*
LIFT FR PULSE Seat lifter (front) Up
The numeral value decreases
*
Down The numeral value increases *
Other than the above
No change to numeral value*
LIFT RR PULSE Seat lifter (rear) Up
The numeral value decreases
*
Down The numeral value increases *
Other than the above No change to numeral value*
MIR/SEN RH U–D Door mirror (passenger side) Change between 3.4 (close to peak)
0.6 (close to valley)
MIR/SEN RH R–L Door mirror (passenger side) Change between 3.4 (close to left edge)
0.6 (close to right edge)
MIR/SEN LH U–D Door mirror (driver side) Change between 3.4 (close to peak)
0.6 (close to valley)
MIR/SEN LH R–L Door mirror (driver side) Change between 0.6 (close to left edge)
3.4 (close to right edge)
TILT PULSE Tilt position Upward
The numeral value decreases
*
Downward The numeral value increases *
Other than the above
No change to numeral value*
TELESCO PULSE Telescopic position Forward
The numeral value decreases
*
Backward The numeral value increases *
Other than the above
No change to numeral value*
STEERING STATUS Steering lock unit LOCK LOCK
unlock UNLOCK
VEHICLE SPEED The condition of vehicle speed is displayed km/h
P RANG SW CAN A/T shift selector P position ON
Other than the above OFF
R RANGE (CAN) A/T shift selector R position ON
Other than the above OFF
DOOR SW-FL Driver door Open ON
Close OFF
Monitor Item Condition Value/Status
Revision: 2010 May2011 QX56

DRIVER SEAT CONTROL UNITADP-27
< ECU DIAGNOSIS INFORMATION >
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*: The value at the position attained when the battery is connected is regarded as 32768.
TERMINAL LAYOUT
PHYSICAL VALUES
DOOR SW-FR Passenger door Open ON
Close OFF
IGN ON SW Ignition switch ON position ON
Other than the above OFF
ACC ON SW Ignition switch ACC or ON position ON
Other than the above OFF
KEY ON SW Intelligent Key Inserted is key slot ON
Inserted is not key slot OFF
KEYLESS ID UNLOCK button of Intelligent Key is pressed 1, 2, 3, 4 or 5
KYLS DR UNLK Intelligent Key or driver
side door request switch ON ON
OFF OFF
VHCL SPEED (ABS) Can signal from ABS Received ON
Not received OFF
HANDLE The BCM for handle position is displayed LHD
RHD
TRANSMISSION Transmission type is displayed AT o r C V T
MT
Monitor Item Condition Value/Status
JMJIA3903ZZ
Te r m i n a l N o .
(Wire color) Description
ConditionVoltage (V)
(Approx.)
+ - Signal name Input/
output
1
(R/Y) —CAN-H — — —
2
(R) Ground UART communication
(TX/RX) Input Ignition switch ON
JMJIA1391ZZ
Revision: 2010 May2011 QX56

INSPECTION AND ADJUSTMENTADP-51
< BASIC INSPECTION >
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INSPECTION AND ADJUSTMENT
ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL
ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL : De-
scription
INFOID:0000000006248324
Each function is reset to the following condition when the battery terminal is disconnected.
*1: Default value is 40 mm.
NOTE:
Notice that disconnecting the battery when detect ed DTC are present will erase the DTC memory.
ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL : Spe-
cial Repair Requirement
INFOID:0000000006248325
1.SYSTEM INITIALIZATION
Perform system initialization. Refer to ADP-52, "
SYSTEM INITIALIZATION : Special Repair Requirement".
>> GO TO 2.
2.MEMORY STORAGE
Perform memory storage. Refer to ADP-53, "
MEMORY STORING : Special Repair Requirement".
>> GO TO 3.
3.INTELLIGENT KEY INTERLOCK STORAGE
Perform Intelligent Key interlock storage. Refer to ADP-54, "
INTELLIGENT KEY INTERLOCK STORING :
Special Repair Requirement".
>> GO TO 4.
4.SYSTEM SETTING
Perform system setting. Refer to ADP-55, "
SYSTEM SETTING : Special Repair Requirement".
>> END
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPL ACING CONTROL UNIT : Description
INFOID:0000000006248326
Each function is reset to the following condition when the driver seat control unit is replaced.
Function Condition Procedure
Memory (Seat, stee ring, mirror) Erased Perform storing
Entry/exit assist ON Perform initialization
Set slide amount
*1
Intelligent Key interlock Erased
Perform initialization
Perform storing
Function Condition Procedure
Memory (Seat, stee ring, mirror) Erased Perform storing
Entry/exit assist ON Perform initialization
Set slide amount
*1
Revision: 2010 May2011 QX56