2011 INFINITI QX56 warning

DLK-4
Component Function Check ................................145
Diagnosis Procedure .............................................145
COMBINATION METER BUZZER ..................146
Component Function Check .............................. ..146
Diagnosis Procedure .............................................146
INFORMATION DISPLAY ...............................147
Component Function Check .............................. ..147
Diagnosis Procedure .............................................147
KEY WARNING LAMP ....................................148
Component Function Check .............................. ..148
Diagnosis Procedure .............................................148
HAZARD FUNCTION .......................................149
Component Function Check .............................. ..149
Diagnosis Procedure .............................................149
AUTOMATIC BACK DOOR CLOSE SWITCH .150
Component Function Check .............................. ..150
Diagnosis Procedure .............................................150
Component Inspection ...........................................151
AUTOMATIC BACK DOOR MAIN SWITCH ...152
Component Function Check .............................. ..152
Diagnosis Procedure .............................................152
Component Inspection ...........................................153
AUTOMATIC BACK DOOR SWITCH .............154
Component Function Check .............................. ..154
Diagnosis Procedure .............................................154
Component Inspection ...........................................155
HALF LATCH SWITCH ...................................156
Component Function Check ................................ ..156
Diagnosis Procedure .............................................156
Component Inspection ...........................................157
TOUCH SENSOR ............................................158
RH ........................................................................... ..158
RH : Component Function Check ........................158
RH : Diagnosis Procedure .....................................158
RH : Component Inspection ..................................159
LH ........................................................................... ..159
LH : Component Function Check .........................159
LH : Diagnosis Procedure ......................................159
LH : Component Inspection ...................................160
BACK DOOR CLOSURE MOTOR ..................162
Diagnosis Procedure ........................................... ..162
AUTOMATIC BACK DOOR WARNING BUZZ-
ER ....................................................................
163
Diagnosis Procedure ........................................... ..163
Component Inspection ...........................................163
GROUND CIRCUIT ......................................... .165
Component Function Check .............................. ..165
Diagnosis Procedure .............................................165
INTEGRATED HOMELINK TRANSMITTER ....166
Component Function Check ............................... .166
Diagnosis Procedure .............................................166
SYMPTOM DIAGNOSIS ...........................168
DOOR DOES NOT LOCK/UNLOCK WITH
DOOR LOCK AND UNLOCK SWITCH .......... ..
168
ALL DOOR ............................................................. .168
ALL DOOR : Description .......................................168
ALL DOOR : Diagnosis Procedure .......................168
DRIVER SIDE ......................................................... .168
DRIVER SIDE : Description ..................................168
DRIVER SIDE : Diagnosis Procedure ...................168
PASSENGER SIDE .................................................168
PASSENGER SIDE : Descripti on .........................169
PASSENGER SIDE : Diagnos is Procedure ..........169
REAR LH ................................................................ .169
REAR LH : Description .........................................169
REAR LH : Diagnosis Procedure ..........................169
REAR RH ................................................................ .169
REAR RH : Description .........................................169
REAR RH : Diagnosis Procedure .........................169
DOOR DOES NOT LOCK/UNLOCK WITH
DOOR KEY CYLINDER OPERATION .............
171
Diagnosis Procedure ............................................ .171
DOOR DOES NOT LOCK/UNLOCK WITH
DOOR REQUEST SWITCH ..............................
172
ALL DOOR REQUEST SWITCHES ....................... .172
ALL DOOR REQUEST SWITCHES : Description .172
ALL DOOR REQUEST SWITCHES : Diagnosis
Procedure .............................................................
172
DRIVER SIDE DOOR REQUEST SWITCH ............ .173
DRIVER SIDE DOOR REQUEST SWITCH : De-
scription .................................................................
173
DRIVER SIDE DOOR REQUEST SWITCH : Diag-
nosis Procedure ....................................................
173
PASSENGER SIDE DOOR REQUEST SWITCH ... .173
PASSENGER SIDE DOOR REQUEST SWITCH :
Description ............................................................
173
PASSENGER SIDE DOOR REQUEST SWITCH :
Diagnosis Procedure .............................................
173
BACK DOOR REQUEST SWITCH ........................ .173
BACK DOOR REQUEST SWITCH : Description ..173
BACK DOOR REQUEST SWITCH : Diagnosis
Procedure .............................................................
173
DOOR DOES NOT LOCK/UNLOCK WITH IN-
TELLIGENT KEY ..............................................
175
Diagnosis Procedure ............................................ .175
Revision: 2010 May2011 QX56

DLK-5
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FUEL LID LOCK ACTUATOR DOES NOT OP-
ERATE ............................................................ ..
176
Diagnosis Procedure ........................................... ..176
IGNITION POSITION WARNING FUNCTION
DOES NOT OPERATE .....................................
177
Diagnosis Procedure ........................................... ..177
SELECTIVE UNLOCK FUNCTION DOES
NOT OPERATE ................................................
178
Diagnosis Procedure ........................................... ..178
AUTO DOOR LOCK OPERATION DOES NOT
OPERATE .........................................................
179
Diagnosis Procedure ........................................... ..179
VEHICLE SPEED SENSING AUTO LOCK
OPERATION DOES NOT OPERATE ..............
180
Diagnosis Procedure ........................................... ..180
IGN OFF INTERLOCK DOOR UNLOCK
FUNCTION DOES NOT OPERATE .................
181
Diagnosis Procedure ........................................... ..181
P RANGE INTERLOCK DOOR LOCK/UN-
LOCK FUNCTION DOES NOT OPERATE ......
182
Diagnosis Procedure ........................................... ..182
HAZARD AND HORN REMINDER DOES
NOT OPERATE ................................................
183
Diagnosis Procedure ........................................... ..183
HAZARD AND BUZZER REMINDER DOES
NOT OPERATE ................................................
184
Diagnosis Procedure ........................................... ..184
KEY REMINDER FUNCTION DOES NOT OP-
ERATE ..............................................................
185
Diagnosis Procedure ........................................... ..185
WELCOME LIGHT FUNCTION DOES NOT
OPERATE .........................................................
186
Diagnosis Procedure ........................................... ..186
OFF POSITION WARNING DOES NOT OP-
ERATE ..............................................................
188
Diagnosis Procedure ........................................... ..188
P POSITION WARNING DOES NOT OPER-
ATE ...................................................................
189
Description .......................................................... ..189
Diagnosis Procedure .............................................189
ACC WARNING DOES NOT OPERATE .........191
Description .......................................................... ..191
Diagnosis Procedure .............................................191
TAKE AWAY WARNING DOES NOT OPER-
ATE ...................................................................
192
Description .......................................................... ..192
Diagnosis Procedure .............................................192
KEY ID WARNING DOES NOT OPERATE ....194
Description ........................................................... ..194
Diagnosis Procedure .............................................194
INTELLIGENT KEY LOW BATTERY WARN-
ING DOES NOT OPERATE ............................
195
Description .............................................................195
Diagnosis Procedure .............................................195
DOOR LOCK OPERATION WARNING DOES
NOT OPERATE ...............................................
197
Diagnosis Procedure .............................................197
AUTOMATIC BACK DOOR OPERATION
DOES NOT OPERATE ....................................
198
ALL SWITCHES ..................................................... ..198
ALL SWITCHES : Description ...............................198
ALL SWITCHES : Diagnosis Procedure ................198
AUTOMATIC BACK DOOR SWITCH .................... ..199
AUTOMATIC BACK DOOR SWITCH : Descrip-
tion .........................................................................
199
AUTOMATIC BACK DOOR SWITCH : Diagnosis
Procedure ..............................................................
199
AUTOMATIC BACK DOOR CLOSE SWITCH ........199
AUTOMATIC BACK DOOR CLOSE SWITCH :
Description ........................................................... ..
199
AUTOMATIC BACK DOOR CLOSE SWITCH : Di-
agnosis Procedure .................................................
199
INTELLIGENT KEY ................................................ ..200
INTELLIGENT KEY : Description ..........................200
INTELLIGENT KEY : Diagnosis Procedure ......... ..200
BACK DOOR OPENER SWITCH .......................... ..200
BACK DOOR OPENER SWITCH : Description .....200
BACK DOOR OPENER SWITCH : Diagnosis Pro-
cedure ....................................................................
200
OPEN/CLOSURE FUNCTION ............................... ..201
OPEN/CLOSURE FUNCTION : Description .........201
OPEN/CLOSURE FUNCTION : Diagnosis Proce-
dure .......................................................................
201
OPEN FUNCTION .................................................. ..202
OPEN FUNCTION : Description ............................202
OPEN FUNCTION : Diagnosis Procedure ............202
CLOSURE FUNCTION .......................................... ..202
CLOSURE FUNCTION : Description .....................202
CLOSURE FUNCTION : Diagnosis Procedure .....203
AUTOMATIC BACK DOOR WARNING DOES
NOT OPERATE ...............................................
204
BUZZER ................................................................. ..204
BUZZER : Description ...........................................204
BUZZER : Diagnosis Procedure ............................204
HAZARD WARNING LAMP ................................... ..204
HAZARD WARNING LAMP : Description ..............204
Revision: 2010 May2011 QX56

DLK-6
HAZARD WARNING LAMP : Diagnosis Proce-
dure .......................................................................
204
AUTOMATIC BACK DOOR FUNCTIONS DO
NOT CANCEL ................................................. .
206
Diagnosis Procedure ........................................... ..206
AUTOMATIC BACK DOOR ANTI-PINCH
FUNCTION DOES NOT OPERATE .................
207
Diagnosis Procedure ........................................... ..207
INTEGRATED HOMELINK TRANSMITTER
DOES NOT OPERATE ....................................
208
Diagnosis Procedure ........................................... ..208
SQUEAK AND RATTLE TROUBLE DIAG-
NOSES .............................................................
209
Work Flow ............................................................ ..209
Inspection Procedure .............................................211
Diagnostic Worksheet ............................................213
REMOVAL AND INSTALLATION ..............215
HOOD .............................................................. .215
Exploded View ..................................................... ..215
HOOD ASSEMBLY ................................................ ..215
HOOD ASSEMBLY : Removal and Installation .....215
HOOD ASSEMBLY : Adjustme nt ........................ ..216
HOOD HINGE ......................................................... ..218
HOOD HINGE : Removal and Installation .............218
HOOD STAY .......................................................... ..218
HOOD STAY : Removal and Installation ...............218
HOOD STAY : Disposal .........................................218
RADIATOR CORE SUPPORT .........................220
Exploded View ..................................................... ..220
Removal and Installation .......................................220
FRONT FENDER .............................................222
Exploded View ..................................................... ..222
FRONT FENDER .................................................... ..222
FRONT FENDER : Removal and Installation ........222
FRONT FENDER DRIP COVER ............................ ..223
FRONT FENDER DRIP COVER : Removal and
Installation .............................................................
223
FRONT FENDER DUCT ......................................... ..223
FRONT FENDER DUCT : Removal and Installa-
tion .........................................................................
223
FRONT DOOR .................................................224
Exploded View ..................................................... ..224
DOOR ASSEMBLY ................................................ ..224
DOOR ASSEMBLY : Removal and Installation .....224
DOOR ASSEMBLY : Adjustme nt ........................ ..225
DOOR STRIKER .................................................... ..226
DOOR STRIKER : Removal and Installation ........226
DOOR HINGE ......................................................... .226
DOOR HINGE : Removal and Installation ............226
DOOR CHECK LINK .............................................. .226
DOOR CHECK LINK : Removal and Installation ..226
REAR DOOR ....................................................228
Exploded View ..................................................... .228
DOOR ASSEMBLY .................................................228
DOOR ASSEMBLY : Removal and Installation ....228
DOOR ASSEMBLY : Adjustme nt ..........................229
DOOR STRIKER .................................................... .230
DOOR STRIKER : Removal and Installation ........230
DOOR HINGE ......................................................... .230
DOOR HINGE : Removal and Installation ............230
DOOR CHECK LINK .............................................. .230
DOOR CHECK LINK : Removal and Installation ..230
BACK DOOR .................................................. ..232
Exploded View ..................................................... .232
BACK DOOR ASSEMBLY ......................................232
BACK DOOR ASSEMBLY : Removal and Installa-
tion ....................................................................... .
232
BACK DOOR ASSEMBLY : Adjustment ...............234
BACK DOOR STRIKER ......................................... .235
BACK DOOR STRIKER : Removal and Installa-
tion ........................................................................
235
BACK DOOR HINGE ............................................. .236
BACK DOOR HINGE : Removal and Installation ..236
BACK DOOR STAY ............................................... .236
BACK DOOR STAY : Removal and Installation ....236
BACK DOOR STAY : Disposal ............................ .237
BACK DOOR WEATHER-STRIP ........................... .237
BACK DOOR WEATHER-STRIP : Removal and
Installation .............................................................
237
HOOD LOCK ....................................................238
Exploded View ..................................................... .238
Removal and Installation .......................................238
Inspection ..............................................................239
FRONT DOOR LOCK .......................................240
Exploded View ..................................................... .240
DOOR LOCK .......................................................... .240
DOOR LOCK : Removal and Installation ..............240
INSIDE HANDLE .................................................... .241
INSIDE HANDLE : Removal and Installation ........241
OUTSIDE HANDLE ................................................ .241
OUTSIDE HANDLE : Removal and Installation ....241
REAR DOOR LOCK .........................................243
Revision: 2010 May2011 QX56

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Exploded View ....................................................
..
243
DOOR LOCK ......................................................... ..243
DOOR LOCK : Removal and Installation ..............243
INSIDE HANDLE ................................................... ..243
INSIDE HANDLE : Removal and Installation ........244
OUTSIDE HANDLE ............................................... ..244
OUTSIDE HANDLE : Removal and Installation ....244
BACK DOOR LOCK .........................................246
Exploded View .................................................... ..246
DOOR LOCK ......................................................... ..246
DOOR LOCK : Removal and Installation ..............246
TOUCH SENSOR .................................................. ..246
TOUCH SENSOR : Removal and Installation .......246
BACK DOOR SUPPORT ROD .............................. ..247
BACK DOOR SUPPORT ROD : Removal and In-
stallation ................................................................
247
EMERGENCY LEVER ........................................... ..247
EMERGENCY LEVER : Unlock procedures .........247
FUEL FILLER LID OPENER ............................248
Exploded View .................................................... ..248
Removal and Installation .......................................248
KEY CYLINDER ...............................................250
GLOVE BOX LID KEY CYLINDER ....................... ..250
GLOVE BOX LID KEY CYLINDER : Removal and
Installation .............................................................
250
CAB MOUNTING INSULATOR ........................251
Exploded View .................................................... ..251
Removal and Installation .......................................251
DOOR SWITCH ................................................254
Removal and Installation ..................................... ..254
DOOR REQUEST SWITCH ..............................255
DRIVER SIDE ........................................................ ..255
DRIVER SIDE : Removal and Installation .............255
PASSENGER SIDE .................................................255
PASSENGER SIDE : Removal and Installation .. ..255
BACK DOOR ......................................................... ..255
BACK DOOR : Removal and Installation ..............255
INSIDE KEY ANTENNA ..................................256
INSTRUMENT CENTER ........................................ ..256
INSTRUMENT CENTER : Removal and Installa-
tion .........................................................................
256
CONSOLE .............................................................. ..256
CONSOLE : Removal and Installation ...................256
LUGGAGE ROOM ................................................. ..256
LUGGAGE ROOM : Removal and Installation ......256
OUTSIDE KEY ANTENNA ..............................257
DRIVER SIDE ......................................................... ..257
DRIVER SIDE : Removal and Installation .............257
PASSENGER SIDE ..................................................257
PASSENGER SIDE : Removal and Installation .. ..257
BACK DOOR ......................................................... ..257
BACK DOOR : Removal and Installation ...............257
INTELLIGENT KEY WARNING BUZZER .......258
Removal and Installation .......................................258
REMOTE KEYLESS ENTRY RECEIVER .......259
Removal and Installation .......................................259
INTELLIGENT KEY BATTERY .......................260
Removal and Installation .......................................260
BACK DOOR CONTROL UNIT ......................261
Removal and Installation ..................................... ..261
AUTOMATIC BACK DOOR CONTROL MOD-
ULE ..................................................................
262
Removal and Installation .......................................262
AUTOMATIC BACK DOOR WARNING BUZZ-
ER ....................................................................
263
Removal and Installation .......................................263
AUTOMATIC BACK DOOR MAIN SWITCH ...264
Removal and Installation .......................................264
AUTOMATIC BACK DOOR CLOSE SWITCH .265
Removal and Installation ..................................... ..265
AUTOMATIC BACK DOOR SWITCH .............266
Removal and Installation .......................................266
Revision: 2010 May2011 QX56

DLK-8
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006225828
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISS AN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.
 Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
 When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.
 When using air or electric power tools or hammers , always switch the ignition OFF, disconnect the
battery, and wait at least 3 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation after Battery Disconnect
INFOID:0000000006225829
NOTE:
 Before removing and installing any control units, first tu rn the push-button ignition switch to the LOCK posi-
tion, then disconnect bot h battery cables.
 After finishing work, confirm that all control unit connectors are connected properly, then re-connect both
battery cables.
 Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If a DTC is detected, perform trouble diagnos is according to self-diagnosis results.
For vehicle with steering lock unit, if the battery is disconnected or discharged, the steering wheel will lock and
cannot be turned.
If turning the steering wheel is required with the bat tery disconnected or discharged, follow the operation pro-
cedure below before starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Turn the push-button ignition switch to ACC position. (At this time, the steering lock will be released.)
3. Disconnect both battery cables. The steering lock wi ll remain released with both battery cables discon-
nected and the steering wheel can be turned.
4. Perform the necessary repair operation.
Revision: 2010 May2011 QX56

PRECAUTIONSDLK-9
< PRECAUTION >
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5. When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button ignition switch is turned to LOCK position.)
6. Perform self-diagnosis check of a ll control units using CONSULT-III.
Precautions For Xenon Headlamp ServiceINFOID:0000000006225830
WARNING:
Comply with the follow ing warnings to prevent any serious accident.
 Disconnect the battery cable (neg ative terminal) or the power supply fuse before installing, remov-
ing, or touching the xenon headlamp (bulb included). The xenon headlamp contains high-voltage
generated parts.
 Never work with wet hands.
 Check the xenon headlamp ON-OFF status after assem bling it to the vehicle. Never turn the xenon
headlamp ON in other conditions. Connect th e power supply to the vehicle-side connector.
(Turning it ON outside the lamp case m ay cause fire or visual impairments.)
 Never touch the bulb glass immediately afte r turning it OFF. It is extremely hot.
CAUTION:
Comply with the follow ing cautions to prevent an y error and malfunction.
 Install the xenon bulb securely. (I nsufficient bulb socket installation may melt the bulb, the connec-
tor, the housing, etc. by high-vol tage leakage or corona discharge.)
 Never perform HID circuit inspection with a tester.
 Never touch the xenon bulb glass with ha nds. Never put oil and grease on it.
 Dispose of the used xenon bulb after p acking it in thick vinyl without breaking it.
 Never wipe out dirt and cont amination with organic solven t (thinner, gasoline, etc.).
WorkINFOID:0000000006225831
 After removing and installing the opening/closing parts, be sure to carry out fitting adjustments to check their
operational.
 Check the lubrication level, damage, and wear of each part. If necessary, grease or replace it.
Revision: 2010 May2011 QX56

DLK-12
< SYSTEM DESCRIPTION >
COMPONENT PARTS
DOOR LOCK SYSTEM : Component Description
INFOID:0000000006225834
1. Fuel lid lock actuator 2. Remote keyless entry receiver 3. Inside key antenna (luggage room)
4. Inside key antenna (console) 5. Air bag diagnosis sensor unit Refer to SRC-8, "
Component Parts
Location"
6. A/T assembly (TCM)
Refer to TM-10, "
A/T CONTROL
SYSTEM : Component Parts Loca-
tion"
7. Inside key antenna (instrument cen-
ter) 8. IPDM E/R
Refer to PCS-4, "
Component Parts
Location"
9. Horn
10. Intelligent Key warning buzzer 11. BCM Refer to BCS-4, "
BODY CONTROL
SYSTEM : Component Parts Loca-
tion"
12. Power window main switch (door
lock and unlock switch)
13. Outside key antenna (driver side) 14. Front door switch (driver side) 15. Front door lock assembly (driver side)
16. Front door request switch (driver side)
A. View with luggage side finisher lower LHD and rear speaker removed B. View with luggage side finisher up-
per removed C. Under the second seat seatback
D. View with console rear finisher re- moved E. View with cluster lid C removed F. Engine room LH
1. Push-button ignition switch 2. Back door request switch 3. Outside key antenna (back door)
4. Back door opener switch 5. Back door lock assembly 6. Front door lock assembly (passen- ger side)
7. Front door switch (passenger side) 8. Front door request switch (passen- ger side)9. Outside key antenna (passenger
side)
A. View with back door finisher inner re- moved
JMKIA5218ZZ
Item Function
BCM Controls the door lock system
IPDM E/R Sounds horn via CAN communication between BCM
Air bag diagnosis sensor unit  Transmits air bag signal to BCM
 Refer to
SRC-9, "
Component Description"
Revision: 2010 May2011 QX56

COMPONENT PARTSDLK-13
< SYSTEM DESCRIPTION >
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AUTOMATIC BACK DOOR SYSTEM
Combination meter  Displays each operation method guide and warning for system malfunction
 Performs operation method guide and warning with buzzer
 Transmits vehicle speed signal to CAN communication line
TCM Transmits shift position signal to BCM via CAN communication line
Remote keyless entry receiver Receives Intelligent Key operation and transmits to BCM
Inside key antenna Detects if Intelligent Key is inside the vehicle
Outside key antenna Detects if Intelligent Key is outside the vehicle
Push-button ignition switch Inputs push-button ignition switch ON/OFF condition to BCM
Door switch Inputs door open/close condition to BCM
Door lock and unlock switch  Detects if door lock and unlock switch is press/release
 Integrated in the power window main switch and front power window switch (passenger
side)
Door request switch  Detects if each door request switch is press/release
 Integrated in the outside handle (driver side, passenger side) and back door opener
switch assembly
Intelligent Key warning buzzer Warns the user of the lock/unlock condition and inappropriate operations with the buzzer
sound
Intelligent Key The following functions are available when having and carrying electronic ID
 Door lock/unlock
 Engine start
 Remote control entry function is available when operating on button
Hazard warning lamp Warns the user of the lock/unlock condition and inappropriate operations with the lamps
blink
Door lock actuator Output lock/unlock signal from BCM and locks/unlocks each door
Fuel lid lock actuator Output lock/unlock signal from BCM and locks/unlocks fuel filler lid Item Function
Revision: 2010 May2011 QX56