belt INFINITI QX56 2009 Factory Service Manual
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2009, Model line: QX56, Model: INFINITI QX56 2009Pages: 4171, PDF Size: 84.65 MB
Page 3617 of 4171
ST-26
< REMOVAL AND INSTALLATION >
POWER STEERING OIL PUMP
POWER STEERING OIL PUMP
Removal and InstallationINFOID:0000000004187597
REMOVAL
1. Drain power steering fluid from reservoir tank.
2. Remove engine room cover. Refer to EM-24, "Removal and Installation"
.
3. Remove air duct assembly. Refer to EM-25, "Removal and Installation"
.
4. Remove power steering reservoir tank.
5. Remove serpentine drive belt belt from auto tensioner and power steering pump. Refer to EM-13,
"Removal and Installation".
6. Disconnect pressure sensor electrical connector.
7. Remove high pressure and low pressure piping from power steering oil pump. Refer to ST-27
.
8. Remove bolts, then remove power steering pump.
INSTALLATION
Installation is in the reverse order of removal. Refer to ST-27 for tightening torque.
After installation, bleed air. Refer to ST-13, "Air Bleeding Hydraulic System"
.
NOTE:
Belt tension is automatic and requires no adjustment.
Revision: December 20092009 QX56
Page 3630 of 4171
STR-1
ENGINE
C
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SECTION STR
A
STR
N
O P
CONTENTS
STARTING SYSTEM
PRECAUTION ....... ........................................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
Precaution for Power Generation Variable Voltage
Control System ..........................................................
3
PREPARATION ............................................4
PREPARATION .............................................. .....4
Special Service Tool ........................................... ......4
Commercial Service Tool ..........................................4
BASIC INSPECTION ....................................5
DIAGNOSIS AND REPAIR WORKFLOW ..... .....5
Work Flow ........................................................... ......5
FUNCTION DIAGNOSIS ...............................8
STARTING SYSTEM ...................................... .....8
System Diagram .................................................. ......8
System Description ...................................................8
Component Parts Location ........................................8
Component Description ............................................9
COMPONENT DIAGNOSIS .........................10
B TERMINAL CIRCUIT .....................................10
Description ........................................................... ....10
Diagnosis Procedure ...............................................10
S CONNECTOR CIRCUIT .................................11
Description ...............................................................11
Diagnosis Procedure ...............................................11
STARTING SYSTEM .........................................12
Wiring Diagram .................................................... ....12
SYMPTOM DIAGNOSIS ..............................17
STARTING SYSTEM .........................................17
Symptom Table ................................................... ....17
ON-VEHICLE REPAIR .................................18
STARTER MOTOR ...........................................18
Removal and Installation ..................................... ....18
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .......................................... ...
19
STARTER MOTOR ...........................................19
Starter .................................................................. ....19
Revision: December 20092009 QX56
Page 3631 of 4171
STR-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005856238
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 severity 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 SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/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 SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified 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 Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c 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:0000000005856245
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
Revision: December 20092009 QX56
Page 3652 of 4171
TM-4
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ................................................................
174
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .................................
174
Precaution for On Board Diagnosis (OBD) System
of A/T and Engine ..................................................
175
Precaution .............................................................175
Service Notice or Precaution .................................176
PREPARATION ..........................................177
PREPARATION .............................................. .177
Special Service Tool ............................................ ..177
Commercial Service Tool ......................................178
ON-VEHICLE MAINTENANCE ..................179
A/T FLUID ....................................................... .179
Checking the A/T Fluid (ATF) .............................. ..179
Changing the A/T Fluid (ATF) ................................181
A/T FLUID COOLER ........................................183
A/T Fluid Cooler Cleaning ................................... ..183
Inspection ..............................................................185
STALL TEST ....................................................186
Inspection and Judgment .................................... ..186
LINE PRESSURE TEST ..................................188
Inspection and Judgment .................................... ..188
ROAD TEST .....................................................190
Description ........................................................... ..190
Check Before Engine Is Started ............................190
Check At Idle .........................................................190
Cruise Test - Part 1 ...............................................191
Cruise Test - Part 2 ...............................................193
Cruise Test - Part 3 ...............................................194
Vehicle Speed When Shifting Gears .....................194
Vehicle Speed When Performing and Releasing
Complete Lock-up .................................................
194
A/T POSITION .................................................195
Adjustment of A/T Position .................................. ..195
Checking of A/T Position .......................................195
ON-VEHICLE REPAIR ............................. ..196
SHIFT CONTROL SYSTEM ........................... .196
A/T Shift Selector Removal and Installation ........ ..196
AIR BREATHER HOSE ...................................197
2WD ........................................................................ ..197
2WD : Removal and Installation ............................197
4WD ........................................................................ ..197
4WD : Removal and Installation ............................197
OIL PAN ...........................................................201
Oil Pan ................................................................. .201
CONTROL VALVE WITH TCM ........................203
Control Valve with TCM and A/T Fluid Tempera-
ture Sensor 2 ....................................................... .
203
REAR OIL SEAL ..............................................212
Rear Oil Seal ........................................................ .212
FLUID COOLER SYSTEM ...............................213
Exploded View ..................................................... .213
Removal and Installation .......................................213
REMOVAL AND INSTALLATION .............214
TRANSMISSION ASSEMBLY ........................ ..214
Removal and Installation (2WD) .......................... .214
Removal and Installation (4WD) ...........................216
DISASSEMBLY AND ASSEMBLY ...........220
OVERHAUL .................................................... ..220
Component .......................................................... .220
Oil Channel ...........................................................227
Location of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings ......................... .
229
DISASSEMBLY .............................................. ..232
Disassembly ......................................................... .232
REPAIR FOR COMPONENT PARTS ..............249
Oil Pump .............................................................. .249
Front Sun Gear, 3rd One-Way Clutch ...................251
Front Carrier, Input Clutch, Rear Internal Gear .....253
Mid Sun Gear, Rear Sun Gear, High and Low Re-
verse Clutch Hub ..................................................
258
High and Low Reverse Clutch ..............................263
Direct Clutch .........................................................265
ASSEMBLY .................................................... ..268
Assembly (1) ........................................................ .268
Adjustment ............................................................281
Assembly (2) .........................................................283
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... ..........................................
290
SERVICE DATA AND SPECIFICATIONS
(SDS) .............................................................. ..
290
General Specification ........................................... .290
Vehicle Speed at Which Gear Shifting Occurs .....290
Vehicle Speed at Which Lock-up Occurs/Releas-
es ..........................................................................
291
Stall Speed ............................................................291
Line Pressure ........................................................291
Input Speed Sensor ..............................................291
Output Speed Sensor ...........................................291
Reverse Brake ......................................................291
Total End Play .......................................................292
Torque Converter .................................................
Revision: December 20092009 QX56
Page 3822 of 4171
TM-174
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005880175
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 SR and SB section of this Service Man-
ual.
WARNING:
To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which 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 SR section.
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 Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c 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:0000000005880176
NOTE:
This Procedure is applied only to models with Intelli gent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK ″ position.
Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
Revision: December 20092009 QX56
Page 3941 of 4171
VTL-1
VENTILATION, HEATER & AIR CONDITIONER
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SECTION VTL
A
B
VTL
N
O P
CONTENTS
VENTILATION SYSTEM
PRECAUTION ....... ........................................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
Precaution for Working with HFC-134a (R-134a) ......3
Precaution for Procedure without Cowl Top Cover ......3
PREPARATION ............................................4
PREPARATION .............................................. .....4
Special Service Tool ........................................... ......4
Commercial Service Tool ..........................................4
FUNCTION DIAGNOSIS ...............................5
IN-CABIN MICROFILTER .............................. .....5
Description .......................................................... ......5
ON-VEHICLE MAINTENANCE .....................6
IN-CABIN MICROFILTER .............................. .....6
Removal and Installation ...........................................6
ON-VEHICLE REPAIR .... ..............................7
CONTROL UNIT ..................................................7
Removal and Installation ...........................................7
IN-VEHICLE SENSOR ................................... .....9
Removal and Installation ...........................................9
OPTICAL SENSOR ........................................ ....10
Removal and Installation .........................................10
INTAKE SENSOR ..............................................11
Removal and Installation .........................................11
BLOWER MOTOR .......................................... ....12
Component .......................................................... ....12
Removal and Installation .........................................12
IN-CABIN MICROFILTER .................................14
Removal and Installation .........................................14
HEATER & COOLING UNIT ASSEMBLY ........15
Component ..............................................................15
Removal and Installation .........................................16
HEATER CORE .................................................18
Component ..............................................................18
Removal and Installation .........................................19
DEFROSTER DOOR MOTOR ..........................21
Removal and Installation .........................................21
INTAKE DOOR MOTOR ...................................22
Removal and Installation .........................................22
MODE DOOR MOTOR ......................................23
Components ............................................................23
Removal and Installation .........................................24
AIR MIX DOOR MOTOR ...................................25
Component ..............................................................25
Removal and Installation .........................................26
VARIABLE BLOWER CONTROL .....................28
Components ............................................................28
Removal and Installation .........................................29
DUCTS AND GRILLES .....................................30
Component ..............................................................30
Removal and Installation .........................................33
REFRIGERANT LINES .....................................35
Removal and Installation for Front Evaporator ........35
Removal and Installation for Rear Evaporator .........36
Removal and Installation for Rear Expansion
Valve ........................................................................
37
Revision: December 20092009 QX56
Page 3942 of 4171
VTL-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005867738
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 severity 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 SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/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 SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified 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 Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c 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:0000000005867739
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
Revision: December 20092009 QX56
Page 3978 of 4171
WCS
WCS-1
DRIVER INFORMATION & MULTIMEDIA
C
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G H
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J
K L
M B
SECTION WCS
A
O P
CONTENTS
WARNING CHIME SYSTEM
BASIC INSPECTION ....... .............................3
DIAGNOSIS AND REPAIR WORKFLOW ..... .....3
Work Flow ........................................................... ......3
FUNCTION DIAGNOSIS ...............................4
WARNING CHIME SYSTEM .......................... .....4
WARNING CHIME SYSTEM .......................................4
WARNING CHIME SYSTEM : System Diagram . ......4
WARNING CHIME SYSTEM : System Description
......
4
WARNING CHIME SYSTEM : Component Parts
Location ............................................................... ......
5
WARNING CHIME SYSTEM : Component De-
scription .....................................................................
5
LIGHT REMINDER WARNING CHIME ................. ......6
LIGHT REMINDER WARNING CHIME : System
Diagram .....................................................................
6
LIGHT REMINDER WARNING CHIME : System
Description ................................................................
6
LIGHT REMINDER WARNING CHIME : Compo-
nent Parts Location ...................................................
7
LIGHT REMINDER WARNING CHIME : Compo-
nent Description ........................................................
7
SEAT BELT WARNING CHIME ............................ ......7
SEAT BELT WARNING CHIME : System Diagram
......
8
SEAT BELT WARNING CHIME : System Descrip-
tion ...................................................................... ......
8
SEAT BELT WARNING CHIME : Component
Parts Location ...........................................................
9
SEAT BELT WARNING CHIME : Component De-
scription .....................................................................
9
KEY WARNING CHIME ......................................... ....10
KEY WARNING CHIME : System Diagram ............10
KEY WARNING CHIME : System Description ........10
KEY WARNING CHIME : Component Parts Loca-
tion ....................................................................... ....
11
KEY WARNING CHIME : Component Description ....11
DIAGNOSIS SYSTEM (METER) .......................12
CONSULT-III Function (METER/M&A) ....................12
DIAGNOSIS SYSTEM (BCM) ...........................14
BUZZER ................................................................. ....14
BUZZER : CONSULT-III Function (BCM - BUZZ-
ER) ..........................................................................
14
COMPONENT DIAGNOSIS .........................15
POWER SUPPLY AND GROUND CIRCUIT ....15
COMBINATION METER ........................................ ....15
COMBINATION METER : Diagnosis Procedure .....15
COMBINATION METER : Diagnosis Procedure .....16
BCM (BODY CONTROL MODULE) ...................... ....16
BCM (BODY CONTROL MODULE) : Diagnosis
Procedure ............................................................ ....
16
METER BUZZER CIRCUIT ...............................18
Description ...............................................................18
Component Function Check ....................................18
Diagnosis Procedure ..............................................18
SEAT BELT BUCKLE SWITCH SIGNAL CIR-
CUIT ..................................................................
19
Description ...............................................................19
Component Function Check ..................................19
Diagnosis Procedure ..............................................19
Component Inspection .............................................20
KEY SWITCH SIGNAL CIRCUIT ......................21
Description ...............................................................21
Component Function Check ..................................21
Diagnosis Procedure ..............................................21
Component Inspection .............................................22
Revision: December 20092009 QX56
Page 3979 of 4171
WCS-2
WARNING CHIME SYSTEM .............................23
Wiring Diagram .................................................... ...23
ECU DIAGNOSIS ..................................... ...28
COMBINATION METER ................................. ...28
Reference Value .................................................. ...28
Wiring Diagram .......................................................30
Fail Safe .................................................................46
DTC Index ..............................................................47
BCM (BODY CONTROL MODULE) ..................49
Reference Value .................................................. ...49
Terminal Layout ......................................................51
Physical Values ......................................................51
Wiring Diagram .......................................................57
SYMPTOM DIAGNOSIS .............................62
THE LIGHT REMINDER WARNING DOES
NOT SOUND ................................................... ...
62
Description ........................................................... ...62
Diagnosis Procedure ...............................................62
THE SEAT BELT WARNING CONTINUES
SOUNDING, OR DOES NOT SOUND ...............
63
Description ........................................................... ...63
Diagnosis Procedure ...............................................63
THE KEY WARNING DOES NOT SOUND .......64
Description ........................................................... ...64
Diagnosis Procedure ...............................................64
PRECAUTION ............................................65
PRECAUTIONS .............................................. ...65
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. ...
65
Revision: December 20092009 QX56
Page 3981 of 4171
WCS-4
< FUNCTION DIAGNOSIS >
WARNING CHIME SYSTEM
FUNCTION DIAGNOSIS
WARNING CHIME SYSTEM
WARNING CHIME SYSTEM
WARNING CHIME SYSTEM : System DiagramINFOID:0000000003776688
WARNING CHIME SYSTEM : System DescriptionINFOID:0000000003776689
COMBINATION METER
• The buzzer for warning chime system is installed in the combination meter.
• The buzzer sounds when the combination meter receives a buzzer output signal from each unit.
BCM
BCM receives signals from various units and transmits a buzzer output signal to the combination meter with
CAN communication line if it judges that the warning buzzer should be activated.
BCM warning function list
AWNIA0210GB
Warning functions Signal name
Light reminder warning chime • Lighting switch position signal
• Door switch signal
Seat belt warning chime Seat belt buckle switch signal
Key warning chime • Key switch signal
• Door switch signal
Revision: December 20092009 QX56