reset INFINITI QX56 2011 Factory Manual Online

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-164
< REMOVAL AND INSTALLATION >
BATTERY
REMOVAL AND INSTALLATION
BATTERY
Exploded ViewINFOID:0000000006275779
Removal and InstallationINFOID:0000000006275780
REMOVAL
1. Remove cover of battery positive terminal.
2. Loosen battery terminal nuts, and disconnect both battery cables from battery terminals.
CAUTION:
When disconnecting, disconnect the battery cable from the negative terminal first.
3. Remove battery fix frame mounting nuts and battery fix frame.
4. Remove battery.
INSTALLATION
Install in the reverse order of removal.
CAUTION:
When connecting, connect the battery cable to the positive terminal first.
Reset electronic systems as necessary. Refer to GI-65, "
ADDITIONAL SERVICE WHEN REMOVING BAT-
TERY NEGATIVE TERMINAL : Required Procedure After Battery Disconnection".
1 : Battery fix frame
Refer to GI-4, "
Components" for symbols in the figure.
JSMIA0238GB
Revision: 2010 May2011 QX56

INSPECTION AND ADJUSTMENTRF-17
< BASIC INSPECTION >
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INSPECTION AND ADJUSTMENT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPL ACING CONTROL UNIT : Description
INFOID:0000000006141230
MEMORY RESET PROCEDURE
1. Please observe the following instructi ons at confirming the sunroof operation.
NOTE:
Do not disconnect the electronic power while the sunroof is operating or within 5 seconds after the sunroof
stops (to wipe-out the memory of lid position and operating friction).
2. Initialization of system should be conducted after the following conditions.
 When the sunroof motor is changed.
 When the sunroof does not operate normally. (Incomplete initialization conditions)
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement
INFOID:0000000006141231
INITIALIZATION PROCEDURE
If the sunroof does not close or open automatically, us e the following procedure to return sunroof operation to
normal.
1. Press the tilt up switch and start the tilt up operation.
2. Release the tilt up switch once, press the tilt up switch again, press and hold the switch until lid pops up.
3. The glass lid moves slight toward tilt up direction then stop. (Press and hold the switch during this opera- tion)
4. Release the switch again, and press the tilt up s witch within the first 10 seconds. (Press and hold the
switch)
5. After 4 seconds, the glass lid will be automatically operated in sequence of tilt down, slide open and slide
close.
6. After the glass lid stops, release the switch 0.5 second later. (Press and hold the switch during this opera-
tion)
7. If slide switch operates normally, this initialization is done.
ANTI-PINCH FUNCTION
1. Full open the sunroof.
2. Place a wooden piece (wooden hammer handle, etc.) at near fully closed position.
3. Close the sunroof completely with auto-slide close.
Check that sunroof lowers for approximately 150 mm (5 .91in) or 2 seconds with out pinching a wooden piece
and stops.
CAUTION:
 Never check with hands and other part of body because they may be pinched. Never get pinched.
 Depending on environment and driving conditions, if a similar impact or lord is applied to the sun-
roof it may lower.
 Check that auto-slide operates before inspect ion when system initialization is performed.
 Perform initial setting when auto-slide operatio n or anti-pinch function does not operate normally.
Revision: 2010 May2011 QX56

SBC-10
< SYSTEM DESCRIPTION >
SYSTEM
SEAT BELT WARNING LAMP SYSTEM
SEAT BELT WARNING LAMP SYSTEM : System DiagramINFOID:0000000006237880
SEAT BELT WARNING LAMP SYSTEM : System DescriptionINFOID:0000000006237881
 Turns ON seat belt warning lamp, when the Occupant Detection System judges adult or child in the front
passenger seat and the passenger seat belt buckle switch is OFF.
 Operation of air bag diagnosis sensor unit when air bag diagnosis sensor unit receives information from
Occupant Detection System.
 In addition, seat belt warning lamp illuminates, when t he driver side seat belt is not fasten. This does not
relate to the air bag diagnosis sensor unit.
 For driver seat belt function, refer to MWI-16, "
MASTER WARNING LAMP : System Diagram"
JMHIA0685GB
Status (front passenger seat) Seat belt warning lamp (When front passenger seat is unbuck-
led)
Empty OFF
An object OFF
Child/ child-seat ON
Adult ON
Malfunction OFF
Zero point reset
Not yet performed (service parts only) OFF
Revision: 2010 May2011 QX56

SE-18
< SYSTEM DESCRIPTION >
SYSTEM
Malfunction Malfunctioning condition
The temperature difference between the seatback ther-
mal electric unit and seat cushion thermal electric unit is
more than 30 °C  When it detects for 4 seconds that the temperature difference between
the seatback thermal electric unit and seat cushion thermal electric unit
is more than 30 °, it stops the output to the thermal electric unit, activates
the climate controlled seat blower motor at the maximum position, and
sends the external airflow for 30 seconds
 If the temperature difference is still more than 30 °C after 30 seconds
pass, it stops all output and enters the system OFF condition
 When the temperature difference between seatback thermal electric unit and seat cushion thermal electric unit becomes less than 20 °C, the sys-
tem recovers automatically
 If it detects that the temperature difference is more than 30 °C after the
automatic system recovery, it immediately stops all output and enters the
system OFF condition
NOTE:
When the switch operation is performed before entering the system OFF
condition, the fail-safe mode is reset.
The temperature of thermal electric unit is more than
11 0 °C in the HEAT mode (any thermal electric unit in the
seatback or seat cushion)  When it detects for 4 seconds that the temperature of the thermal electric
unit is more than 110 °C, it stops the output to the thermal electric unit,
activates the climate controlled seat blower motor at the maximum posi-
tion, and sends the external airflow for 30 seconds
 If the temperature does not become less than 105 °C after 30 seconds
pass, it stops all output and enters the system OFF condition
 When the temperature of the thermal electric unit becomes less than 105 °C, the system recovers automatically
 If it detects that the temperature of the thermal electric unit is more than
11 0 °C after the automatic system recovery, it immediately stops all out-
put and enters the system OFF condition
The temperature of the thermal electric unit is more than
45 °C in the COOL mode (any thermal electric unit in the
seatback or seat cushion)  When it detects for 4 seconds that the temperature of the thermal electric
unit is more than 45 °C and less than 70 °C, it starts the temperature mon-
itoring of the thermal electric unit at 3 second intervals
 While monitoring, if it detects that the temperature continuously rises 2 °C
or more 4 times or reaches 70 °C or more, it stops all output and enters
the system OFF condition
 If it detects other results of monitoring, it continues activating in the COOL mode
Thermal electric unit sensor open circuit
(in either the back and the cushion TEU)  When it detects for 4 seconds that the thermal electric unit sensor is an
open circuit, it stops all output and enters the system OFF condition
Climate controlled seat blower motor system open circuit
(in either the back and the cushion blower)  When it detects for 2 seconds that climate controlled seat blower motor
is an open circuit while the climate controlled seat is being activated, and
the battery status has been stable for the same 2 second period. it stops
output to the thermal electric unit
 When it detects for 10 seconds that the climate controlled seat blower motor is an open circuit while the climate controlled seat is being activat-
ed, and the battery status has been stable for the same 10second period.
it stops all output and enters the system OFF condition
NOTE:
After detecting the climate seat blower motor system open circuit for 2
seconds, the system recovers automatically if the activation of the cli-
mate controlled seat blower motor is detected for 1 second or more.
Switch input out of the specified range
(either heat input or cool input)  When it detects for 4 seconds that the rotary switch input is less than
30% of the vehicle battery voltage, it stops all output and enters the sys-
tem OFF condition
 When the switch input returns to a value within the specified range, the system recovers automatically
Revision: 2010 May2011 QX56

SE-22
< ECU DIAGNOSIS INFORMATION >
CLIMATE CONTROLLED SEAT CONTROL UNIT
Malfunction Malfunctioning condition
The temperature difference between the seatback ther-
mal electric unit and seat cushion thermal electric unit is
more than 30 °C  When it detects for 4 seconds that the temperature difference between
the seatback thermal electric unit and seat cushion thermal electric unit
is more than 30 °, it stops the output to the thermal electric unit, activates
the climate controlled seat blower motor at the maximum position, and
sends the external airflow for 30 seconds
 If the temperature difference is still more than 30 °C after 30 seconds
pass, it stops all output and enters the system OFF condition
 When the temperature difference between seatback thermal electric unit and seat cushion thermal electric unit becomes less than 20 °C, the sys-
tem recovers automatically
 If it detects that the temperature difference is more than 30 °C after the
automatic system recovery, it immediately stops all output and enters the
system OFF condition
NOTE:
When the switch operation is performed before entering the system OFF
condition, the fail-safe mode is reset.
The temperature of thermal electric unit is more than
11 0 °C in the HEAT mode (any thermal electric unit in the
seatback or seat cushion)  When it detects for 4 seconds that the temperature of the thermal electric
unit is more than 110 °C, it stops the output to the thermal electric unit,
activates the climate controlled seat blower motor at the maximum posi-
tion, and sends the external airflow for 30 seconds
 If the temperature does not become less than 105 °C after 30 seconds
pass, it stops all output and enters the system OFF condition
 When the temperature of the thermal electric unit becomes less than 105 °C, the system recovers automatically
 If it detects that the temperature of the thermal electric unit is more than
11 0 °C after the automatic system recovery, it immediately stops all out-
put and enters the system OFF condition
The temperature of the thermal electric unit is more than
45 °C in the COOL mode (any thermal electric unit in the
seatback or seat cushion)  When it detects for 4 seconds that the temperature of the thermal electric
unit is more than 45 °C and less than 70 °C, it starts the temperature mon-
itoring of the thermal electric unit at 3 second intervals for increase in
temperature from the previous value
 While monitoring, if it detects that the temperature continuously rises 2 °C
or more for 4 consecutive intervals or reaches 70 °C or more, it stops all
output and enters the system OFF condition
 If it detects other results of monitoring, it continues activating in the se-
lected COOL mode
Thermal electric unit sensor open circuit
(in either the back and the cushion TEU)  When it detects for 4 seconds that the thermal electric unit sensor is an
open circuit, it stops all output and enters the system OFF condition
Climate controlled seat blower motor system open circuit
(in either the back and the cushion blower)  When it detects for 2 seconds that climate controlled seat blower motor
is an open circuit while the climate controlled seat is being activated, and
the battery status has been stable for the same 2 second period, it stops
output to the thermal electric unit
 When it detects for 10 seconds that the climate controlled seat blower motor is an open circuit while the climate controlled seat is being activat-
ed, and the battery status has been stable for the same 10second period,
it stops all output and enters the system OFF condition
NOTE:
After detecting the climate seat blower motor system open circuit for 2
seconds, the system recovers automatically if the activation of the cli-
mate controlled seat blower motor is detected for 1 second or more.
Switch input out of the specified range
(either heat input or cool input)  When it detects for 4 seconds that the rotary switch input is less than
30% of the vehicle battery voltage, it stops all output and enters the sys-
tem OFF condition
 When the switch input returns to a value within the specified range, the
system recovers automatically
Revision: 2010 May2011 QX56

SEC-18
< SYSTEM DESCRIPTION >[WITH INTELLIGENT KEY SYSTEM]
SYSTEM
VEHICLE SECURITY SYSTEM : System Description
INFOID:0000000006226185
 The vehicle security system has two alarm functions (theft warning alarm and panic alarm), and reduces the
possibility of a theft or mischief by activating horns and headlamps intermittently.
 The panic alarm does not start when the theft warning alarm is activating, and the panic alarm stops when
the theft warning alarm is activated.
The priority of the functions are as per the following.
THEFT WARNING ALARM
 The theft warning alarm function activates horns and headlamps intermittently when BCM detects that any
door or hood is opened by unauthorized means, whil e the system is in the ARMED state.
 Security indicator lamp on combination meter always blinks when power supply position is any position other
than ON. Security indicator lamp blinking warns that the vehicle is equipped with a vehicle security system.
Operation Flow
Priority Function
1 Theft warning alarm
2 Panic alarm
JMKIA5416GB
No. System state Switching condition
1 DISARMED to PRE-ARMED When all conditions of A and
one condition of B is satis-
fied. AB
 Power supply position: OFF/LOCK
 All doors: Closed
 Hood: Closed All doors are locked by:
 Door key cylinder LOCK switch
 LOCK button of Intelligent Key
 Door request switch
2 PRE-ARMED to ARMED When all of the following
conditions are satisfied for
30 seconds.  Power supply position: OFF/LOCK
 All doors: Locked
 Hood: Closed
3 ARMED to ALARM When one condition of A and
one condition of B are satis-
fied. AB
Intelligent Key: Not used  Any door: Open  Hood: Open
4 DISARMED to PRE-RESET When all conditions of A and
one condition of B is satis-
fied. AB
 Power supply position: OFF/LOCK
 All doors: Closed
 Hood: Open All doors are locked by:
 Door key cylinder LOCK switch
 LOCK button of Intelligent Key
 Door request switch
5 PRE-ARMED to PRE-RESET When one of the following
conditions is satisfied.  Hood: Open
Revision: 2010 May2011 QX56

SYSTEMSEC-19
< SYSTEM DESCRIPTION > [WITH INTELLIGENT KEY SYSTEM]
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NOTE:
 BCM ignores the door key cylinder UNLOCK switch signal input for 1 second after the door key cylinder LOCK switch signal input .
 To lock/unlock all doors by operating remote controller button of Intelligent Key or door request switch, Intelligent Key must be within
the detection area of outside key antenna. For details, refer to DLK-18, "
INTELLIGENT KEY SYSTEM : System Description".
 To open back door by operating back door opener switch, Intelligent Key must be within the detection area of outside key anten na. For
details, refer to DLK-18, "
INTELLIGENT KEY SYSTEM : System Description".
DISARMED Phase
The vehicle security system is not set in the DISARM ED phase. The vehicle security system stays in this
phase while any door is open, because it is assumed that the owner is inside or nearby the vehicle. Security
indicator lamp blinks every 2.4 seconds.
When the vehicle security system is reset, each phase switches to the DISARMED phase directly.
PRE-ARMED Phase
The PRE-ARMED phase is the transient state bet ween the DISARMED phase and the ARMED phase. This
phase is maintained for 30 seconds, so that the owner c an reset the setting due to a mis-operation. This phase
switches to the ARMED phase when vehicle conditions are not changed for 30 seconds. Security indicator
lamp illuminates while being in this phase.
To reset the PRE-ARMED phase, refer to the switching condition of No. 10 in the table above.
ARMED Phase
The vehicle security system is set, and BCM monitors all necessary inputs. If any door or hood is opened with-
out using Intelligent Key, vehicle security system switc hes to the ALARM phase. Security indicator lamp blinks
every 2.4 seconds.
To reset the ARMED phase, refer to the switching condition of No. 11 in the table above.
ALARM Phase
BCM transmits “Theft Warning Horn Request” signal and “High Beam Request” signal intermittently to IPDM
E/R via CAN communication. In this phase, horns and headlamps are activated intermittently for approxi-
mately 50 seconds to warn that the vehicle is accessed by unauthorized means. ON/OFF timing of horns and
headlamps are synchronized. After 50 seconds, the vehi cle security system returns to the ARMED phase. At
6ARMED to
PRE-RESET No conditions.
7 ALARM to PRE-RESET
8 PRE-RESET to DISARMED When one of the following
conditions is satisfied.  Power supply positi
on: ACC/ON/CRANKING/RUN
 Door key cylinder UNLOCK switch: ON
 UNLOCK button of Intelligent Key: ON
 Door request switch: ON
 Back door opener switch: ON
 UNLOCK switch of door lock and unlock switch: ON
 Any door: Open
9 PRE-RESET to PRE-ARMED When all of the following
conditions are satisfied.  Power supply position: OFF/LOCK
 All doors: Closed
 Hood: Closed
10 PRE-ARMED to DISARMED When one of the following
condition is satisfied.  Power supply positi
on: ACC/ON/CRANKING/RUN
 Door key cylinder UNLOCK switch: ON
 UNLOCK button of Intelligent Key: ON
 AUTO BACK DOOR button of Intelligent Key: ON
 Door request switch: ON
 Back door opener switch: ON
 Any door: Open
11 A R M E D t o DISARMED When one of the following
condition is satisfied.  Power supply positi
on: ACC/ON/CRANKING/RUN
 Door key cylinder UNLOCK switch: ON
 UNLOCK button of Intelligent Key: ON
 AUTO BACK DOOR button of Intelligent Key: ON
 Door request switch: ON
 Back door opener switch: ON
12 ALARM to
DISARMED
13 RE-ALARM When one of the following condition is satisfied after the
ALARM operation is finished.  Any door: Open
 Hood: Open
No. System state Switching condition
Revision: 2010 May2011 QX56

SEC-20
< SYSTEM DESCRIPTION >[WITH INTELLIGENT KEY SYSTEM]
SYSTEM
this time, if BCM still detects unauthorized access to t
he vehicle, the system is switched to the ALARM phase
again. This RE-ALARM operation is carried out a maximum of 2 times.
To cancel the ALARM operation, refer to the switching condition of No. 12 in the table above.
NOTE:
If a battery terminal is disconnected during the ALARM phase, theft warning alarm stops. But when the battery
terminal is reconnected, theft warning alarm is activated again.
PRE-RESET Phase
The PRE-RESET phase is the transient state betw een each phase and DISARMED phase. If only the condi-
tion of hood is not satisfied, the system switches to the PRE-RESET phase. Then, when any condition is
changed, the system switches to t he DISARMED phase or PRE-ARMED phase.
PANIC ALARM
 The panic alarm function activates horns and headlamps intermittently when the owner presses the PANIC
ALARM button of Intelligent Key outside the vehicle while the power supply position is OFF or LOCK.
 When BCM receives panic alarm signal from Intelligent Key, BCM transmits “Theft Warning Horn Request”
signal and “High Beam Request” signal intermittently to IPDM E/R via CAN communication. To prevent the
activation due to mis-operation of Intelligent Key by ow ner, the panic alarm function is activated when BCM
receives the signal for 0.4 - 0.6 seconds.
 Panic alarm operation is maintained for 25 seconds.
 Panic alarm operation is cancelled when BCM receives one of the following signals.
- LOCK button of Intelligent Key: ON
- UNLOCK button of Intelligent Key: ON
- PANIC ALARM button of Intelligent Key: Long pressed
- Any door request switch: ON
Revision: 2010 May2011 QX56

SEC-24
< SYSTEM DESCRIPTION >[WITH INTELLIGENT KEY 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