All rights reserved. No part of this Service Manual may be reproduced or stored in a retrieval system, or
transmitted in any form, or by any means, electronic, mechanical, recording or otherwise, without the prior
written permission of Nissan Motor Company Ltd., Tokyo, Japan.
Page 2
This manual contains maintenance and repair procedure for the 2002
INFINITI Q45.
In order to assure your safety and the efficient functioning of the vehicle,
this manual should be read thoroughly. It is especially important that the
PRECAUTIONS in the GI section be completely understood before starting
any repair task.
All information in this manual is based on the latest product information
at the time of publication. The right is reserved to make changes in specifications and methods at any time without notice.
IMPORTANT SAFETY NOTICE
The proper performance of service is essential for both the safety of
the technician and the efficient functioning of the vehicle.
The service methods in this Service Manual are described in such a
manner that the service may be performed safely and accurately.
Service varies with the procedures used, the skills of the technician
and the tools and parts available. Accordingly, anyone using service
procedures, tools or parts which are not specifically recommended
by NISSAN must first be completely satisfied that neither personal
safety nor the vehicle’s safety will be jeopardized by the service
method selected.
Page 3
PLEASE HELP MAKE THIS SERVICE MANUAL BETTER!
I N F I N I T I
Your comments are important to INFINITI and will help us to improve our Service Manuals.
Use this form to report any issues or comments you may have regarding our Service Manuals.
Please print this form and type or write your comments below. Mail or fax to:
SERVICE MANUAL:Model:Year:
PUBLICATION NO. (Refer to Quick Reference Index):
Please describe any Service Manual issues or problems in detail:
Page number(s)
R
Nissan North America, Inc.
Technical Service Information
39001 Sunrise Drive, P.O. Box 9200
Farmington Hills, MI USA 48331
FAX: (248) 488-3910
Note: Please include a copy of each page, marked with your comments.
Are the trouble diagnosis procedures logical and easy to use? (circle your answer)YESNO
If no, what page number(s)?
Please describe the issue or problem in detail:
Is the organization of the manual clear and easy to follow? (circle your answer)YESNO
Please comment:
What information should be included in INFINITI Service Manuals to better support you in servicing or
repairing customer vehicles?
Note: Please include a copy of each page, marked with your comments.
PRECAUTION PFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
The Supplemental Restraint System such as “AIR 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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:
●To avoid r e n d e ring the SRS inoperative, which c o u ld inc r e a s e the r is k of p e r s o n a l injury o r 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 incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
●Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
EKS001IP
Wiring Diagrams and Trouble Diagnosis EKS001IQ
When you read wiring diagrams, refer to the followings:
●Refer to GI-14, "How to Read Wiring Diagrams" .
●Refer to PG-2, "POWER SUPPLY ROUTING" for power distribution circuit.
When you perform trouble diagnosis, refer to the followings:
●Refer to GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" .
●Refer to GI-26, "How to Perform Efficient Diagnosis for an Electrical Incident" .
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FRONT WIPER AND WASHER SYSTEM
FRONT WIPER AND WASHER SYSTEMPFP:28810
System Description EKS001IS
WIPER OPERATION
Description
With the ignition switch in the ON position, power is supplied
●through 20A fuse [No. 34, located in the fuse block (J/B)NO.2]
●to wiper motor terminal 4.
Ground is supplied to wiper switch terminal 17and 20 through body grounds M115 and M25.
A
B
C
Low (MIST) and High Speed Wiper Operation
When the wiper switch is placed in the LO or MIST position, ground is supplied
●through terminal 14 of the wiper switch
●to wiper motor terminal 6.
With power and ground supplied, the wiper motor operates at low speed.
When the wiper switch is placed in the HI position, ground is supplied
●through terminal 16 of the wiper switch
●to wiper motor terminal 5.
With power and ground supplied, the wiper motor operates at high speed.
Auto Stop Operation
When the front wiper switch is placed in the OFF position, the front wiper motor will continue to operate until
the wiper arms reach the base of the windshield (Auto stop). When the front wiper switch is placed in the OFF
position, ground is supplied
●from terminal 14 of the wiper switch
●to wiper motor terminal 6, in order to continue wiper motor operation at low speed.
Ground is also supplied until the wiper arms reaches the base of the windshield
●through terminal 13 of the wiper switch
●to wiper relay terminal 3
●through terminal 4 of the wiper relay
●to wiper motor terminal 3
●through terminal 1 of the wiper motor, and
●through body grounds E62 and E42.
When the wiper arms reach the base of the windshield, the switch in the front wiper motor moves to the
“STOP”position. The ground path is interrupted and the front wiper motor stops.
D
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Intermittent Operation
Intermittent operation is controlled by the BCM. When the front wiper switch is placed in the INT position,
ground is supplied
●to BCM terminal 9
●from front wiper switch terminal 15
●through body grounds M25and m115.
The desired interval time is input
●to BCM terminal 48
●from front wiper switch terminal 19 and
●to BCM terminal 49
●from combination meter terminal q18 (vehicle speed pulse).
The desired interval time is input
●to front wiper relay terminal 2
●to BCM terminal 128
With power and ground supplied, the front wiper relay is activated. When activated, an intermittent ground is
supplied
●to front wiper motor terminal 5
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FRONT WIPER AND WASHER SYSTEM
●through the front wiper switch terminal 14
●to front wiper switch terminal 13
●through front wiper relay terminal 3
●to front wiper relay terminal 5
●through body grounds E24 and E44.
Front wiper motor operates at desired interval with BCM terminal 9 grounded. Intermittent operation can be
adjusted from: Approx.0.9 -45sec.: (when vehicle is stopped) Approx. 0.4 - 30 sec.: (when vehicle is moving)
Judgement on vehicle stopped or moving: Stopped, Moving: More than 5 km/h (3 MPH) Moving, Stopped:
Less than 2 km/h (1 MPH)
WASHER OPERATION
With the ignition switch in the ON position, power is supplied
●through 20A fuse [No. 34, located in the fuse block (J/B)NO.2]
●to washer motor terminal 1.
When the lever is pulled to the WASH position, ground is supplied
●to washer motor terminal 2, and
●to BCM terminal 4
●from terminal 18 of the front wiper switch
●through terminal 17 of the front wiper switch, and
●through body grounds M25 and M115.
With power and ground supplied, the washer motor operates. The front wiper motor operates at low speed for
about 3 seconds. This feature is controlled by the BCM in the same manner as the intermittent operation.
Component Parts and Harness Connector Location EKS001IT
CKIM0009E
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FRONT WIPER AND WASHER SYSTEM
SchematicEKS001IU
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B
C
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TKWM0105E
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FRONT WIPER AND WASHER SYSTEM
Wiring Diagram — WIPER — EKS001IV
TKWM0106E
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FRONT WIPER AND WASHER SYSTEM
A
B
C
D
E
F
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TKWM0107E
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FRONT WIPER AND WASHER SYSTEM
TKWM0108E
Terminal and Reference Values for BCMEKS001IW
CONDITION
TER-
MINAL
4PWasher switch signalONWiper switch
9OR
48G/OR
WIRE
COLORITEM
Wiper switch INT signal
Intermittent wiper volume signal
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IGNITION
SWIT
CH
ONWiper switch
ON
CONDITION OR OPERATION
Wiper intermittent
interval
WW-8
DATA(DC)
WASHApprox. 0
OFFApprox. 12
INTApprox. 0
OFFApprox. 8
Long.Approx. 3.6
Short.Approx. 0
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FRONT WIPER AND WASHER SYSTEM
CONDITION
TER-
MINAL
49PU/W
56BGroundON-Approx. 0
68W/Bignition on signalON-Approx. 12
105Y/LBattery Power supplyOFF-Approx. 12
113BG roundON-Ap prox . 0
124SB
128R/Y
WIRE
COLORITEM
Vehi cle speed signal
(2-pulse)
Wiper auto
Stop signal
Wiper motor
Operation signal
IGNITION
SWIT
CH
ONVehicle speed approx. 40 km/h
ON
ONWiper switch: INT position
CONDITION OR OPERATION
Wiper is moving
Wiper while the vehicle is stopped
DATA(DC)
Approx. 0
Approx. 12
ELF1080D
A
B
C
D
E
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SKIA0209J
Work FlowEKS001IX
1.Confirm the trouble symptom or customer complaint.
2.Understand the system description, refer to WW-3, "System Description" .
3.Perform preliminary inspection, refer to WW-9, "
Preliminary Inspection" .
4.According to the trouble diagnosis chart, repair or replace the cause of the malfunction.
5.Does wiper function operate normally? If it operates normally, GO TO 6. If not, GO TO 4.
6.End
Preliminary InspectionEKS001IY
SETTING CHANGE FUNCTIONS
●With CONSULT-II, each function can be changed in setting, refer to WW-12, "WORK SUPPORT" .
CAUTION:
After the setting was changed, the new setting will be maintained even if the battery was disconnected.
Setting change mode
Wiper intermittent speed control by vehicle speed
CONSULT-ll
(WORK SUPPORT)
ONActivated
OFFDisactivated
Description
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FRONT WIPER AND WASHER SYSTEM
INSPECTION FOR POWER SUPPLY AND GROUND CIRCUIT
Inspection procedure
1. CHECK FUSE
●Check wiper and washer fuse is blown.
UnitPower sourceFuse No.
Front wiper motor, Front washer motor,
Front wiper relay
CAUTION:
For fuse number, refer to WW-4, "
Component Parts and Harness Connector Location" .
Ignition ON or START34
OK or NG?
OK>> GO TO 2.
NG>> If fuse is blown, be sure to eliminate cause of problem before installing new fuse, refer to PG-2,
"POWER SUPPLY ROUTING"
2. POWER SUPPLY CIRCUIT INSPECTION
1.Disconnect front wiper motor, front washer motor and Front wiper relay.
2.Check voltage between terminals listed in the chart below of connector and body ground.
Unit (Connector)
Front wiper motor (E75)4 (LG)
Front washer motor
(E48)
Front wiper relay (E4)1 (LG)
Te rm i na ls (w i re co l o r)
(+)(–)
1 (LG)
Body groundONBattery voltage
Ignition switch condition Voltage
OK or NG?
OK>> GO TO 3.
NG>> Replace harness of wiper and washer power supply circuit.
3. GROUND CIRCUIT INSPECTION (BCM)
Check for continuity between the following terminals on BCM connector and body ground.
Unit (Connector)
BCM (E204)
OK or NG?
OK>> Inspection end
NG>> Replace the harness BCM ground circuit.
Te rm i na ls (w i re co l o r)
(+)(–)
56 (B)
113 (B )
Body groundOFFContinuity should exist
Ignition switch conditionContinuity
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FRONT WIPER AND WASHER SYSTEM
CONSULT–II FunctionEKS001IZ
●CONSULT–II executes the following functions by combining data received and command transmitted via
the communication line from the IVMS control unit. IVMS communication inspection, work support by part,
self-diagnosis, data monitor, and active test display.
IVMS diagnosis
position
WIPER
BCM PART NUMBER. Displays BCM part No.
CONSULT–II BASIC OPERATION
1.With the ignition switch OFF, connect CONSULT–II to Data Link
Connector, and turn the ignition switch ON.
Check item and diagno-
sis mode
WORK SUPPORTChanges the setting for each function.
DATA MONITOR
ACTIVE TEST
Displays data relative to BCM input signals and various control related data for
each system.
Turn on/off actuators, relay and according to the commands transmitted by the
CONSULT-ll.
Description
A
B
C
D
E
F
G
2.Touch “START”.
3.Touch “IVMS”.
SHIA0179E
PIIA0182E
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PIIA0183E
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FRONT WIPER AND WASHER SYSTEM
4.Check the model specification, and touch either “WITH SUNROOF” or “WITHOUT SUNROOF” on the “SELECT SYS
COND” SCREEN.
5.Touch “OK”.If the selection is wrong, touch “CANCEL”.
6.Select the desired part to be diagnosed on the “SELECT TEST
ITEM” screen.
WORK SUPPORT
Operation Procedure
1.Touch “WIPER” on the “SELECT TEST ITEM” screen.
2.Touch “WORK SUPPORT” on the “SELECT DIAG MODE” screen.
3.Touch “WIP INT VHCL SPD ADJ”on the “SELECT WORK ITEM”screen.
4.Touch “START”.
● Wiper intermittent speed control by vehicle speed can be canceled or resumed.
5.Touch “CURRENT SETTING” for changing “CURRENT SETTING”.
For no changing “CURRENT SETTING”, touch “END”.
PREPARATIONPFP:00002
Special Service ToolsEES000CZ
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
To ol nu m be r
(Kent-Moore No.)
To ol na m e
Description
(J45295)
Transmitter activation tool
SEIA0051E
ID registration
Commercial Service ToolsEES000N6
To ol na m eD es c ri p t io n
Power toolRemoving wheel nuts
PBIC0190E
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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartEES000D6
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
A
B
C
Reference page
Possible cause and SUSPECTED PARTS
NoiseЧЧЧЧЧЧ××××××××
ShakeЧЧЧЧЧ××××××××
Vibration×××××××
TIRES
Symptom
ROAD WHEEL
×: Applicable
ShimmyЧЧЧЧЧЧЧ×××××
JudderЧЧЧЧЧ××××××
Poor quality ride
or handling
Noise×××ЧЧЧЧЧ×××
Shake××××××××××
Shimmy, judder××××××××
Poor quality ride
or handling
—
—
—
—
—
WT-4
Out-of-round
Imbalance
Incorrect tire pressure
Uneven tire wear
Deformation or damage
ЧЧЧЧЧ××××
××××××
—
NVH in PR section.
NVH in RFD section.
NVH in FAX and FSU sections.
NVH in RAX and RSU sections.
Refer to TIRES in this chart.
Refer to ROAD WHEEL in this chart.
Non-uniformity
Incorrect tire size
PROPELLER SHAFT
DIFFERENTIAL
FRONT AXLE AND FRONT SUSPENSION
REAR AXLE AND REAR SUSPENSION
TIRES
ROAD WHEEL
NVH in RAX section.
DRIVE SHAFT
NVH in BR section.
NVH in PS section.
BRAKE
STEERING
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ROAD WHEEL
ROAD WHEELPFP:40300
InspectionEES000D1
ALUMINUM WHEEL
1.Check tires for wear and improper inflation.
2.Check wheels for deformation, cracks and other damage. If
deformed, remove wheel and check wheel runout.
a.Remove tire from aluminum wheel and mount on a tire balance
machine.
b.Set dial indicator as shown in the illustration.
Wheel runout (Dial indicator value):
Refer to WT-26, "
STEEL WHEEL
1.Check tires for wear and improper inflation.
2.Check wheels for deformation, cracks and other damage. If
deformed, remove wheel and check wheel runout.
a.Remove tire from steel wheel and mount wheel on a tire balance
machine.
b.Set two dial indicators as shown in the illustration.
c.Set each dial indicator to 0.
d.Rotate wheel and check dial indicators at several points around
the circumference of the wheel.
e.Calculate runout at each point as shown below.
SERVICE DATA"
SFA975B
Radial runout = (A+B)/2
Lateral runout = (C+D)/2
f.Select maximum positive runout value and the maximum nega-
tive value.
Add the two values to determine total runout.
In case a positive or negative value is not available, use the
maximum value (negative or positive) for total runout.
If the total runout value exceeds the limit, replace steel wheel.
Wheel runout: Refer to WT-26, "
SERVICE DATA"
SFA981B
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ROAD WHEEL TIRE ASSEMBLY
ROAD WHEEL TIRE ASSEMBLYPFP:40300
Balancing Wheels (Bonding Weight Type)EES000QX
REMOVAL
1.Remove inner and outer balance weights from the road wheel.
CAUTION:
Be careful not to scratch the road wheel during removal.
2.Using releasing agent, remove double-faced adhesive tape from the road wheel.
CAUTION:
● Be careful not to scratch the road wheel during removal.
● After removing double-faced adhesive tape, wipe clean traces of releasing agent from the road
wheel.
WHEEL BALANCE ADJUSTMENT
●If a tire balance machine has adhesion balance weight mode settings and drive-in weight mode setting,
select and adjust a drive-in weight mode suitable for road wheels.
1.Set road wheel on wheel balancer using the center hole as a guide. Start the tire balance machine.
2.When inner and outer unbalance values are shown on the wheel balancer indicator, multiply outer unbalance value by 5/3 to determine balance weight that should be used. Select the outer balance weight with
a value closest to the calculated value above and install it to the designated outer position of, or at the
designated angle in relation to the road wheel.
CAUTION:
● Do not install the inner balance weight before installing the outer balance weight.
● Before installing the balance weight, be sure to clean the
mating surface of the road wheel.
Indicated unbalance value × 5/3 = balance weight to be installed
Calculation example:
23 g (0.81 oz) × 5/3 = 38.33 g (1.35 oz) = 40 g (1.41 oz) balance
weight (closer to calculated balance weight value)
Note that balance weight value must be closer to the calculated
balance weight value.
Example:
37.4 = 35 g (1.23 oz)
37.5 = 40 g (1.41 oz)
SMA054D
A
B
C
D
WT
F
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a.Install balance weight in the position shown in the figure at left.
b.When installing balance weight to road wheels, set it into the
grooved area on the inner wall of the road wheel as shown in the
figure so that the balance weight center is aligned with the wheel
balancer indication position (angle).
CAUTION:
● Always use genuine Nissan adhesion balance weights.
● Balance weights are unreusable; always replace with new
ones.
● Do not install more than three sheets of balance weight.
SMA055D
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ROAD WHEEL TIRE ASSEMBLY
c.If calculated balance weight value exceeds 50 g (1.76 oz), install
two balance weight sheets in line with each other (as shown in
the figure).
CAUTION:
Do not install one balance weight sheet on top of another.
3.Start wheel balancer again.
4.Install drive-in balance weight on inner side of road wheel in the
wheel balancer indication position (angle).
CAUTION:
Do not install more than two balance weights.
5.Start wheel balancer. Make sure that inner and outer residual
unbalance values are 10 g (0.35 oz) each or below.
● If either residual unbalance value exceeds 10 g (0.35 oz), repeat installation procedures.
Wheel balance (Maximum allowable unbalance):
SMA056D
Maximum allowable
unbalance
Dynamic (at rim flange)10 g (0.35 oz) (one side)
Stati c (at ri m f la nge)20 g (0 .71 oz)
RotationEES000D5
●Do not include the T-type spare tire when rotating the tires.
CAUTION:
When installing wheels, tighten them diagonally by dividing
the work two to three times in order to prevent the wheels
from developing any distortion.
Tightening torque of wheel nut:
98 - 118 N·m (10 - 12 kg-m, 72 - 87 ft-lb)
SMA829C
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LOW TIRE PRESSURE WARNING SYSTEM
LOW TIRE PRESSURE WARNING SYSTEMPFP:40300
System ComponentsEES000DB
A
B
C
D
WT
F
G
SEIA0039E
System DescriptionEES000DC
TRANSMITTER
A sensor-transmitter integrated with a valve is installed on a wheel,
and transmits a detected air pressure signal in the form of a radio
wave.
SEIA0040E
ANTENNA
Receives the radio wave signal transmitted by the transmitter.
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SEIA0042E
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LOW TIRE PRESSURE WARNING SYSTEM
TIRE PRESSURE WARNING CONTROL UNIT
Reads the radio wave signal received by the antenna, and controls
the warning lamp and the buzzer operations as shown below. It also
has a judgement function to detect a system malfunction.
ConditionWarning lampBuzzer
Less than 180 kPa (1.8 kg/cm2 , 26 psi) [Low pressure]
2
Less than 70 kPa (0.7 kg/cm
System malfunctionONOFF
, 10 psi) [Flat tire]
DISPLAY
Displays the air pressure of each tire.
●After the ignition switch is turned ON, the pressure values are
not be displayed until the data of all four wheels stabilizes.
0.2 sec. OFF
0.2 sec. ON
ONSounds for 10 sec.
SEIA0041E
OFF
SEIA0044E
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TROUBLE DIAGNOSES
TROUBLE DIAGNOSESPFP:00004
Wiring DiagramEES000EN
A
B
C
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TROUBLE DIAGNOSES
TEWM0002E
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TROUBLE DIAGNOSES
A
B
C
D
WT
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TROUBLE DIAGNOSES
TEWM0004E
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TROUBLE DIAGNOSES
ID Registration ProcedureEES000EO
ID REGISTRATION WITH TRANSMITTER ACTIVATION TOOL
1.Turn ignition switch “OFF”.
2.Connect CONSULT-II to data link connector.
3.Start engine.
4.Touch “START”, “AIR PRESSURE MONITOR”, “WORK SUPPORT” and “ID REGIST”.
5.With the transmitter activation tool (J-45295) pushed against the
front-left transmitter, press the button then keep 5 seconds. At
this time, check that the LED on the tool turns red.
A
B
C
D
WT
SEIA0101E
6.Register the IDs in order from FR LH, FR RH, RR RH, to RR LH. When ID registration of each wheel has
been completed, a buzzer sounds and hazard warning lamp blinks.
7.After completing all ID registrations, press “END” to complete the procedure.
NOTE:
Be sure to register the IDs in order from FR LH, FR RH, RR RH, to RR LH, or the self-diagnostic results display will not function properly.
ID REGISTRATION WITHOUT TRANSMITTER ACTIVATION TOOL
1.Turn ignition switch “OFF”.
2.Connect CONSULT-II to data link connector.
3.Start engine.
4.Touch “START”, “AIR PRESSURE MONITOR”, “WORK” SUPPORT” and “ID REGIST”.
5.Adjust the tire pressure to the values shown in the table below for ID registration, and drive the vehicle at
32 km/h (20 MPH) or more for a few minutes.
Tire position
Front-Left250 (2.5, 36)
Front-Right230 (2.3, 33)
Rear-Right210 (2.1, 30)
Rear-Left190 (1.9, 27)
Tire pressure kPa (k g/cm
2
, psi)
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6.When ID registration of each wheel has been completed, a buzzer sounds and hazard warning lamp
blinks.
7.After completing all ID registrations, press “END” to complete the procedure.
Self-DiagnosisEES000EP
DESCRIPTION
During driving, the low tire pressure warning system receives the signal transmitted from the transmitter
installed in each wheel, and gives alarms when the tire pressure becomes low. The control unit of this system
has pressure judgement and trouble diagnosis functions.
FUNCTION
When the low tire pressure warning system detects low inflation pressure or another unusual symptom, the
warning lamps on the instrument panel comes on. To start the self-diagnostic results mode, ground the selfdiagnostic (check) terminal. The malfunction location is indicated by the warning lamp flashing and the buzzer
sounds.
CONSULT-II
CONSULT-II Application to Low Tire Pressure Warning System
ITEMSELF-DIAGNOSTIC RESULTSDATA MONITOR
Front - Left transmitter××
Front - Right transmitter××
Rear - Left transmitter××
Rear - Right transmitter××
Warning lamp–×
Vehic le spe ed–×
Buzzer (in control unit)–×
×: Applicable
–: Not applicable
Self-Diagnostic Results Mode
Diagnostic itemDiagnostic item is detected when ···
LOW - AIR PRESS - FL
LOW - AIR PRESS - FR
LOW - AIR PRESS - RR
LOW - AIR PRESS - RL
Front-left tire pressure drops to 180kPa(1.8kg/cm2 , 26psi) or less
Front-right tire pressure drops to 180kPa(1.8kg/cm
Rear-right tire pressure drops to 180kPa(1.8kg/cm
Rear-left tire pressure drops to 180kPa(1.8kg/cm
Front-left tire pressure drops to 70kPa(0.7kg/cm
Front-right tire pressure drops to 70kPa(0.7kg/cm
Rear-right tire pressure drops to 70kPa(0.7kg/cm
Rear-left tire pressure drops to 70kPa(0.7kg/cm
Data from front-left transmitter cannot be received.
Data from front-right transmitter cannot be received.
Data from rear-right transmitter cannot be received.
Data from rear-left transmitter cannot be received.
Checksum data from front-left transmitter is malfunctioning.
Checksum data from front-right transmitter is malfunctioning.
Checksum data from rear-right transmitter is malfunctioning.
Checksum data from rear-left transmitter is malfunctioning.
Air pressure data from front-left transmitter is malfunctioning.
Air pressure data from front-right transmitter is malfunctioning.
Air pressure data from rear-right transmitter is malfunctioning.
Air pressure data from rear-left transmitter is malfunctioning.
Function code data from front-left transmitter is malfunctioning.
Function code data from front-right transmitter is malfunctioning.
Function code data from rear-right transmitter is malfunctioning.
Function code data from rear-left transmitter is malfunctioning.
2
, 26psi) or less
2
, 26psi) or less
2
, 26psi) or less
2
, 10psi) or less
2
, 10psi) or less
2
, 10psi) or less
2
, 10psi) or less
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TROUBLE DIAGNOSES
Diagnostic itemDiagnostic item is detected when ···
[BATT - VOLT - LOW] - FL
[BATT - VOLT - LOW] - FR
[BATT - VOLT - LOW] - RR
[BATT - VOLT - LOW] - RL
RECEIVER - ID - NO - REGNo ID registration has been made to the low tire pressure warning control unit.
NOTE:
Before performing the self-diagnosis, be sure to register the ID. Or, the actual malfunction location may be different from that displayed
on CONSULT-II.
Battery voltage of front-left transmitter drops.
Battery voltage of front-right transmitter drops.
Battery voltage of rear-right transmitter drops.
Battery voltage of rear-left transmitter drops.
Data Monitor Mode
MONITORCONDITIONSPECIFICATION
VEHICLE SPEEDDrive vehicle.Vehicle speed (km/h or MPH)
PRESSURE FL
PRESSURE FR
PRESSURE RR
PRESSURE RL
ID FL
ID FR
ID RR
ID RL
WARNING LAMP
BUZZER
NOTE:
Before performing the self-diagnosis, be sure to register the ID. Or, the actual malfunction location may be different from that displayed
on CONSULT-II.
1. Drive vehicle for a few minutes.
or
2. Ignition switch ON and activation
tool is transmitting activate signals.
Ignition switch ON
Tire pressure (kPa or Psi)
Registration ID: DONE
No registration ID: YET
Warning lamp on: ON
Warning lamp off: OFF
Buzzer in Low tire pressure warning control unit on: ON
Buzzer in Low tire pressure warning control unit off: OFF
A
B
C
D
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How to Perform Trouble Diagnosis for Quick and Accurate RepairEES000DF
Inspection 6: ID Registration Can Not Be CompletedEES000DQ
DIAGNOSTIC PROCEDURE
1. ID REGISTRATION (ALL)
●Carry out ID registration of all transmitter.
●Can ID registration of all transmitter be completed?
YES or NO?
YES>> INSPECTION END.
NO>> Go To Inspection 1: Transmitter or Low Tire Pressure Warning Control Unit.
A
B
C
D
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REMOVAL AND INSTALLATION
REMOVAL AND INSTALLATIONPFP:00000
TransmitterEES000DS
REMOVAL
1.Deflate tire. Unscrew transmitter retaining nut and allow transmitter to fall into tire.
2.Gently bounce tire so that transmitter falls to bottom of tire.
Place on tire changing machine and break both tire beads
ensuring that the transmitter remains at the bottom of the tire.
SEIA0047E
3.Turn tire so that valve hole is at bottom and bounce so that
transmitter is near valve hole. Carefully lift tire onto turntable and
position valve hole (and transmitter) 270 degree from mounting/
dismounting head.
4.Lubricate tire well and remove first side of the tire. Reach inside
the tire and remove the transmitter. Remove second side of tire.
INSTALLATION
1.Put first side of tire onto rim.
2.Mount transmitter on rim and tighten nut.
SEIA0048E
SEIA0049E
SEIA0040E
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REMOVAL AND INSTALLATION
3.Place wheel on turntable of tire machine. Ensure that transmitter
is 270 degree from mounting head when second side of tire is
fitted.
NOTE:
Do not touch transmitter at mounting head.
SEIA0048E
4.Lubricate tire well and fit second side of tire as normal. Ensure that tire does not rotate relative to rim.
5.Inflate tire and fit to appropriate wheel position.
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SERVICE DATA
SERVICE DATAPFP:00030
Road WheelEES000DT
Kind of wheelAluminumSteel for emergency use
Deflection limit
Allowable quantity of
residual unbalance
Lateral deflectionLess than 0.3 mm
(0.012 in)
Vertical defle ctionLess than 0. 3 mm
(0.012 in)
Dynamic
(at rim flange)
Static
(at rim flange)
Less than 10g (0.35oz) (per side)
Less than 20g (0.70 oz)
Less than 1.0 mm
(0.039 in)
Less than 1.2 mm
(0.047 in)
TireEES000DU
Unit: kPa (kg/cm2 , psi)
Tire size
225/55R17
245/45R18
T145/90D16420 (4.2, 60)420 (4.2, 60)
Front wheelRear wheel
230 (2.3, 33)230 (2.3, 33)
Air pressure
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STEERING CONTROL SYSTEM
G STEERING
A
B
SECTION STC
STEERING CONTROL SYSTEM
CONTENTS
EPS
ELECTRICALLY CONTROLLED POWER STEER-
ING SYSTEM .............................................................. 2
Control Unit Inspection Table .................................... 9
C
D
E
F
STC
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ELECTRICALLY CONTROLLED POWER STEERING SYSTEM
[EPS]
[EPS]
ELECTRICALLY CONTROLLED POWER STEERING SYSTEMPFP:28500
PrecautionsEGS0007V
BEFORE DIAGNOSING THE POWER STEERING SYSTEM, ENSURE THAT
Vehicle Stopped
1.Power steering components (gears, oil pump, pipes, etc.) Are free from leakage, and that oil level is correct.
2.Tires are inflated to specified pressure and are of specified size, and that steering wheel is a genuine Nissan part.
3.Suspension utilizes the original design, and is free of modifications which increase vehicle weight.
4.Wheel alignment is adjusted properly.
Vehicle In Operation
1.Understand the trouble symptom.
2.Engine is operation properly
DescriptionEGS0007W
SYSTEM DESCRIPTION
The power steering system is a twin orifice type, which uses a vehicle-speed sensing, electronic control
design. Solenoid valve sensitivity is controlled in response to vehicle speed to achieve optimum steering effort.
FAIL-SAFE FUNCTION
The fail-safe function operates to regulate solenoid valve operation
in response to engine speed, thereby maintaining the required steering force.
SST696CA
SST697CB
Fail-Safe Input Conditions
Fail-safe input conditionsRelease conditions
No vehicle speed signal entered for at least 10 seconds while
driving at an engine speed of greater than 1,500 rpm.
A vehicle speed signal of greater than 30 km/h (19 MPH) or
abruptly drops below 2 km/h (1 MPH).
NOTE:
When the engine is revved up to 1,500 rpm or more for at least 10 seconds with vehicle at standstill, the failsafe function operates; however, this is not a matter of concern. The fail-safe function can be released by driving vehicle of a speed of greater than 1.4 km/h (0.9 MPH) or by turning ignition switch from “OFF” to “ON”.
● A vehicle speed signal of greater than 1.4 km/h (0.9 MPH) is
entered,
● Ignition switch is turned from ″OFF″ to ″ON″.
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ELECTRICALLY CONTROLLED POWER STEERING SYSTEM
HYDRAULIC CIRCUIT
[EPS]
A
B
C
D
E
F
STC
SST838C
NOTE:
On models equipped with active damper suspension system, the solenoid valve is controlled by active damper
suspension control unit, as shown in the above drawing. For ″ Wiring Diagrams ″ and ″ Trouble Diagnoses ″ of
these models. Refer to SCS-2, "
TROUBLE DIAGNOSIS FOR ACTIVE DAMPER SUSPENSION" .
Component Parts Location EGS0007X
SGIA0042E
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ELECTRICALLY CONTROLLED POWER STEERING SYSTEM
[EPS]
Trouble DiagnosisEGS0007Y
WIRING DIAGRAM
TGWM0001E
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ELECTRICALLY CONTROLLED POWER STEERING SYSTEM
[EPS]
A
B
C
D
E
F
STC
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TGWM0002E
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ELECTRICALLY CONTROLLED POWER STEERING SYSTEM
[EPS]
PRECAUTIONS FOR DIAGNOSIS
Intermittent problems may be caused by malfunctioning harness, harness connector or terminal. Move harnesses, harness connectors or terminals by hand to make sure that there is no contact malfunction.
If a circuit tester for measuring voltage is used for check, be careful not to forcibly spread any connector terminals.
INSPECTION BEFORE TROUBLE DIAGNOSIS
●Check power steering fluid level and check for any leak. Refer to PS-6, "POWER STEERING FLUID" .
DIAGNOSIS PROCEDURE
Symptom:
●Heavy steering operation during stationary turns
●Light steering operation during high-speed driving
Inspection procedure
1. CHECK VEHICLE SPEED SIGNAL
●Start engine and gradually increase the vehicle speed from 0 to
100 km/h (0 to 62 MPH).
●Measure voltage between power steering control unit terminal 3
(PU/W) and body ground.
●Check that voltage changes from approximately 5.5V to approx-
imately 2.5V. Refer to STC-2, "
OK or NG
OK>> GO TO 5.
NG>> GO TO 2.
SYSTEM DESCRIPTION" .
SGIA0046E
2. CHECK ENGINE SPEED SIGNAL
●When engine is running at idle, change the engine speed to approximately 1,600 rpm and then to approx-
imately 3,000 rpm.
●Measure voltage between power steering control unit terminal 5 (W/G) and body ground.
●Check that voltage changes from approximately 5.5V to approximately 2.1V in steps. Refer to STC-2,
"SYSTEM DESCRIPTION" .
OK or NG
OK>> GO TO 3.
NG>> GO TO 9.
3. CHECK SPEEDOMETER AND VEHICLE SPEED SENSOR
●Check speedometer for proper operation.
●Check that vehicle speed sensor is not regarded as malfunction in the self-diagnosis of A/T (ECM).
OK or NG
OK>> GO TO 4.
NG>>
● Check meter and any malfunctioning parts.
CAUTION:
If rear wheels are rotated when they are off the ground, “the ABS wheel speed sensor is
malfunctioning” is display on the screen.
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ELECTRICALLY CONTROLLED POWER STEERING SYSTEM
[EPS]
4. CHECK VEHICLE SPEED SIGNAL INPUT
●With rear wheels raised, rotate them by hand.
●Measure voltage between terminals on power steering control unit.
When the wheels are rotated slowly by hand:
3 (PU/W ) – 2 (B): Reading fluctuates between 0V and 5V.
3 (PU/W) – Body ground: Reading fluctuates between 0V and 5V.
OK or NG
OK>> Replace power steering control unit.
NG>> Repair or replace harness.
5. CHECK SOLENOID VALVE
●Disconnect the connectors for power steering control unit and
solenoid valve.
●Check for continuity between power steering control unit termi-
nal 7 (LG) and solenoid valve terminal 1 (GY).
7 (LG) – 1 (GY): Continuity should exist.
OK or NG
OK>> GO TO 6.
NG>> Repair or replace harness.
A
B
C
D
E
F
STC
H
SGIA0047E
6. SOLENOID VALVE HARNESS INSPECTION
●Check for continuity between the solenoid valve terminal 2 (B)
and body ground.
2 (B) – Body ground: Continuity should exist.
OK or NG
OK>> GO TO 7.
NG>> Repair or replace harness.
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ELECTRICALLY CONTROLLED POWER STEERING SYSTEM
7. SOLENOID VALVE INSPECTION
●Disconnect the solenoid valve connector.
●Check solenoid valve by listening for its operation sound while
applying battery voltage to terminals 1 (LG) and 2 (B).
●Measure resistance value between the following solenoid valve
terminals.
1 (LG) - 2 (B): Approx. 4 - 6Ω
OK or NG
OK>> GO TO 8.
NG>> Replace solenoid valve.
[EPS]
SGIA0049E
8. STEERING WHEEL TURNING FORCE INSPECTION
Check steering wheel turning force.
OK or NG
OK>> END
NG>> Adjust steering gear assembly adjusting screw and check pump discharge pressure. Refer to PS-
23, "CHECKING HYDRAULIC SYSTEM" .
9. CHECK POWER STEERING CONTROL UNIT INPUT SIGNAL
Measure the voltage between power steering control unit terminal 1
(GY) and body ground.
1 (GY) - Body ground: Approx. 12V
OK or NG
OK>> GO TO 10.
NG>> Repair or replace fuse or harness.
SGIA0050E
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ELECTRICALLY CONTROLLED POWER STEERING SYSTEM
[EPS]
10. POWER STEERING CONTROL UNIT GROUND INSPECTION
Check for continuity between the power steering control unit terminal
2 (B) and body ground.
2 (B) - Body ground: Continuity should exist
OK or NG
OK>> GO TO 11.
NG>> Repair or replace harness.
11. ENGINE REVOLUTION SIGNAL INSPECTION
Check power steering control unit terminal 5 (W/G),. Refer to STC-9,
"Control Unit Inspection Table" .
OK or NG
OK>> GO TO 1.
NG>> Check harness between ECM and control unit or ECM.
Repair or replace harness if necessary.
A
B
C
D
SGIA0051E
E
F
STC
H
SGIA0052E
Control Unit Inspection TableEG S0007Z
The standard values (voltage), measured with an analog tester in contact with control unit terminal, are shown
below:
Inspection terminal
(Power steering control unit)
1
2Ground0V
3Vehicle speed signal
5
7Solenoid valve
ConditionApplicationStandard
Power Battery voltage (approx. 12V)
Ignition switch ON
Engine revolution signal
Engine running
When the speed is very low, the voltage fluctuates between approximately 0V and approximately 5V or higher.
Measure the tachometer drive signal.
Refer to EC-109, "
Term in al Lay ou t"
Normal
0 km/h ((0 MPH) : Approx. 4.4 - 6.6V
100 km/h (62 MPH): Approx. 2.4 - 3.6V
Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TENSIONER”
EHS0008A
A
The Supplemental Restraint System such as “AIR 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.
WARNING:
●To avo i d rendering the SRS ino perativ e , which c o u l d increase t h e risk o f personal i n j u r y or d e a t h
in the event of a collision which would result in air bag inflation, all maintenance should be performed by an authorized NISSAN/INFINITI dealer.
●Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system.
●Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harness connector.
Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service
EHS0008B
●Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
●Before servicing the SRS, turn ignition switch “OFF”, disconnect battery ground cable and wait at least 3
minutes.
For approximately 3 minutes after the cables is removed, it is still possible for the air bag and seat belt
pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes
have passed.
●Diagnosis sensor unit must always be installed with their arrow marks “⇐” pointing towards the front of the
vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformities or rust before installation and replace as required.
●The spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt to
turn steering wheel or column after removal of steering gear.
●Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad
side facing upward and place front side air bag module standing with stud bolt side setting bottom.
●Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
●After air bag inflates, the front instrument panel assembly should be replaced if damaged.
B
C
D
E
F
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SRS
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Trouble Diagnosis PrecautionEHS0009L
When you read wiring diagrams, refer to the followings:
●“HOW TO READ WIRING DIAGRAMS” in GI section
●PG-2, "POWER SUPPLY ROUTING" in PG section
When you perform trouble diagnosis, refer to the followings:
●“HOW TO FOLLOW TEST GROUP IN TROUBLE DIAGNOSIS” in GI section
●“HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT” in GI section
Check for any service bulletins before servicing the vehicle.
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PREPARATION
PREPARATIONPFP:00002
Special Service ToolsEHS0008C
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
To ol nu m be r
(Kent-Moore No.)
To ol na m e
HT61961000 and HT62152000
combined
(J38219)
*Special torx bit
S-NT361
KV99105300
(J41246)
Air bag module bracket
S-NT354
Description
Use for special bolts [TAMPER
RESISTANT TORX (Size T50)]
(J38381-70)
Deployment tool adapter for driver
air bag module
(J38381-65)
Deployment tool adapter for front
passenger air bag
KV99108200
(J38381-50)
Deployment tool adapter for front
seat belt pre-tensioner
Disposing of air bag module and front seat
belt pre-tensioner
S-NT357
Connection between the deployment tool
and driver air bag module
SHIA0172E
Connection between the deployment tool
and front passenger air bag module
SHIA0173E
Connection between the deployment tool
and front seat belt pre-tensioner
ZZA1163D
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PREPARATION
To ol nu m be r
(Kent-Moore No.)
To ol na m e
KV99109000
(J44230)
Deployment tool adapters for side
curtain air bag
KV99108300
(J38381-35)
Deployment tool adapters for front
side air bag
(J-44615)
Air bag lock master key set
ZZA1190D
ZZA1166D
LRS191
Description
Connection between the deployment tool
and side curtain air bag module
Connection between the deployment tool
and front side air bag module
Removing and installation air bag lock
A
B
C
D
E
F
G
SRS
Commercial Service ToolsEHS0008Z
To ol na m eD e sc r ip t io n
Tamper resistant torx socketSize:T30
S-NT757
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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)PFP:28556
SRS ConfigurationEHS0009E
SHIA0171E
The air bag deploys if the diagnosis sensor unit activates while the ignition switch is in the “ON” or “START”
position.
The collision modes for which supplemental restraint systems are activated are different among the SRS systems. For example, the driver air bag module and front passenger air bag module are activated in a frontal collision but not in a side collision.
SRS configurations which are activated for some collision modes are as follows;
SRS configurationFrontal collisionLeft side collisionRight side collision
Driver air bag module×——
Front passenger air bag module×——
Front LH seat belt pre-tensioner×——
Front RH seat belt pre-tensioner×——
Crash zone sensor×——
Front LH side air bag module—××
Front RH side air bag module——×
LH side curtain air bag module —×—
RH side curtain air bag module ——×
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Page 77
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Front Seat Belt Pre-Tensioner With Load LimiterEHS0009F
The seat belt pre-tensioner system with load limiter is installed to
both the driver's seat and the front passenger's seat. It operates
simultaneously with the SRS air bag system in the event of a frontal
collision with an impact exceeding a specified level.
When the frontal collision with an impact exceeding a specified level
occurs, seat belt slack resulting from clothing or other factors is
immediately taken up by the pre-tensioner. Vehicle passengers are
securely restrained.
When passengers in a vehicle are thrown forward in a collision and
the restraining force of the seat belt exceeds a specified level, the
load limiter permits the specified extension of the seat belt by the
twisting of the ELR shaft, and a relaxation of the chest-area seat belt
SRS444
web tension while maintaining force.
Front Side Air BagEHS0009G
Front side air bag is built-in type.
The front seat backs with built-in type side air bag have the labels
shown in figure at right.
A
B
C
D
E
F
G
SHIA0170E
Side Curtain Air BagEHS0009H
The side curtain air bag have the labels shown in figure at right.
●Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harness can be identified by yellow harness connector.
●Do not attempt to repair, splice or modify the SRS wiring harness. If the harness is damaged,
replace it with a new one.
●Keep ground portion clean.
DIAGNOSIS FUNCTION
The SRS self-diagnosis results can be read by using “AIR BAG” warning lamp and/or CONSULT-II.
The User mode is exclusively prepared for the customer (driver). This mode warns the driver of a system malfunction through the operation of the “AIR BAG” warning lamp.
The Diagnosis mode allows the technician to locate and inspect the malfunctioning part.
The mode applications for the “AIR BAG” warning lamp and CONSULT-II are as follows:
User modeDiagnosis modeDisplay type
“AIR BAG” warning lampXXON-OFF operation
CONSULT-II—XMonitoring
NOTE:
Seat belt pre-tensioner malfunction is indicated by “AIR BAG” warning lamp.
HOW TO PERFORM TROUBLE DIAGNOSIS FOR QUICK AND ACCURATE REPAIR
A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.
In general, each customer feels differently about a malfunction. It is important to fully understand the symptoms or conditions for a customer complaint.
Information From Customer
WHAT..... Vehicle model
WHEN..... Date, Frequencies
WHERE..... Road conditions
HOW..... Operating conditions, Symptoms
Preliminary Check
Check that the following parts are in good order.
●Battery [Refer to SC-4, "How to Handle Battery" .]
●Fuse [Refer to PG-2, "Schematic" .]
●System component-to-harness connections
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TROUBLE DIAGNOSIS
WORK FLOW
NOTE:
Seat belt pre-tensioner malfunction is indicated by “AIR BAG” warning lamp.
A
B
C
D
E
F
G
*1: SRS-8*2: SRS-20*3: SRS-24
*4: SRS-27
SHIA0175E
SRS
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TROUBLE DIAGNOSIS
SRS Components Parts LocationEHS0009I
SHIA0178E
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Page 81
TROUBLE DIAGNOSIS
SchematicEHS00094
A
B
C
D
E
F
G
SRS
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THWM0001E
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TROUBLE DIAGNOSIS
Wiring Diagram-SRS-EHS0008E
THWM0002E
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Page 83
TROUBLE DIAGNOSIS
A
B
C
D
E
F
G
SRS
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THWM0003E
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TROUBLE DIAGNOSIS
THWM0004E
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TROUBLE DIAGNOSIS
A
B
C
D
E
F
G
SRS
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THWM0005E
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TROUBLE DIAGNOSIS
THWM0006E
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SRS-16
Page 87
TROUBLE DIAGNOSIS
A
B
C
D
E
F
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SRS
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THWM0007E
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TROUBLE DIAGNOSIS
CONSULT-II FunctionEHS0009J
DIAGNOSIS MODE FOR CONSULT-II
●“SELF-DIAG [CURRENT]”
A current Self-diagnosis result (also indicated by the number of warning lamp flashes in the Diagnosis
mode) is displayed on the CONSULT-II screen in real time. This refers to a malfunctioning part requiring
repairs.
●“SELF-DIAG [PAST]”
Diagnosis results previously stored in the memory are displayed on the CONSULT-II screen. The stored
results are not erased until memory erasing is executed.
●“TROUBLE DIAG RECORD”
With TROUBLE DIAG RECORD, diagnosis results previously erased by a reset operation can be displayed on the CONSULT-II screen.
●“ECU DISCRIMINATED NO.”
The diagnosis sensor unit for each vehicle model is assigned with its own, individual classification number. This number will be displayed on the CONSULT-II screen, as shown below. When replacing the diagnosis sensor unit, refer to the part number for the compatibility. After installation, replacement with a
correct unit can be checked by confirming this classification number on the CONSULT-II screen.
HOW TO CHANGE SELF-DIAGNOSIS MODE WITH CONSULT-II
From User Mode to Diagnosis Mode
After selecting “AIR BAG” on the “SELECT SYSTEM” screen, User mode automatically changes to Diagnosis
mode.
SRS803
From Diagnosis Mode to User Mode
To re tu rn to U se r m od e f ro m D ia gno sis m od e, t ou ch “B AC K” k ey o f C ON SU LT-I I u nt il “ SEL EC T SY ST EM ”
appears, Diagnosis mode automatically changes to User mode.
SRS804
HOW TO ERASE SELF-DIAGNOSIS RESULTS
●“SELF-DIAG [CURRENT]”
A current Self-diagnosis result is displayed on the CONSULT-II screen in real time.
After the malfunction is repaired completely, no malfunction is detected on “SELF-DIAG [CURRENT]”.
●“SELF-DIAG [PAST]”
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TROUBLE DIAGNOSIS
Return to the “SELF-DIAG [CURRENT]” CONSULT-II screen by touching “BACK” key of CONSULT-II and
select “SELF-DIAG [CURRENT]” in SELECT DIAG MODE. Touch “ERASE” in “SELF-DIAG [CURRENT]”
mode.
NOTE:
If the memory of the malfunction in “SELF-DIAG [PAST]” is not erased, the User mode shows the
system malfunction by the operation of the warning lamp even if the malfunction is repaired completely.
●“TROUBLE DIAG RECORD”
The memory of “TROUBLE DIAG RECORD” cannot be erased
A
B
C
D
E
SRS701
Self-Diagnosis Function (Without CONSULT-II) EHS0009K
●The reading of these results is accomplished using one of two modes — “User mode” and “Diagnosis
mode”.
●After a malfunction is repaired, turn the ignition switch “OFF” for at least one second, then back “ON”.
Diagnosis mode returns to the User mode. At that time, the self-diagnostic result is cleared.
HOW TO CHANGE SELF-DIAGNOSIS MODE
F
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SHIA0183E
HOW TO ERASE SELF-DIAGNOSIS RESULTS
After a malfunction is repaired, turn the ignition switch “OFF” for at least one second, then back “ON”. Diagnosis mode returns to the User mode. At that time, the self-diagnostic result is cleared.
Revision: 2004 April 2002 Q45
SRS-19
Page 90
TROUBLE DIAGNOSIS
SRS Operation CheckEHS0008I
DIAGNOSTIC PROCEDURE 1
Checking Air Bag Operation by Using “AIR BAG” Warning Lamp-User Mode
1.Turn the ignition switch from OFF to ON, and check that the air bag warning lamp blinks.
2.Compare the SRS air bag warning lamp blinking pattern with the
examples.
Trouble Diagnoses:
“AIR BAG” Warning Lamp Does Not
Turn Off" .
C
D
E
F
G
SRS
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● Diagnosis sensor unit is malfunction-
ing.
● Air bag warning lamp circuit is mal-
functioning.
SHIA0014E
Revision: 2004 April 2002 Q45
SRS-21
Go to SRS-33, "
“AIR BAG” Warning Lamp Does Not
Turn On" .
Trouble Diagnoses:
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TROUBLE DIAGNOSIS
Trouble Diagnoses with CONSULT–IIEHS0008J
DIAGNOSTIC PROCEDURE 2
1.Turn ignition switch OFF.
2.Connect CONSULT-II to the data link connector.
SHIA0179E
3.Turn ignition switch ON.
4.Touch “START”.
5.Touch “AIR BAG”.
6.On the “self-diagnosis mode selection” screen of CONSULT-II,
select the desired “self-diagnosis mode key”.
SRS695
SRS771
SRS697
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SRS-22
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TROUBLE DIAGNOSIS
a.Touch “SELF-DIAG [CURRENT]”.
● Diagnostic code is displayed on “SELF-DIAG [CURRENT]”.
SHIA0203E
i.If the malfunction is displayed in the “SRS Operation Check (Air bag warning lamp blinking) but no mal-
function is displayed in the “SELF-DIAG [CURRENT]”, the following possibilities shall be checked.
● After the malfunction part is repaired, the diagnosis results in “SELF-DIAG [PAST]” has not been
erased.
● An intermittent malfunction
NOTE:
Intermittent malfunction is a malfunction that has occurred once in the past, but soon recovered. Refer to
SRS-24, "
DIAGNOSTIC PROCEDURE 3" and SRS-24, "DIAGNOSTIC PROCEDURE 4" .
b.Touch “SELF-DIAG [PAST].
● The diagnostic code is displayed until erasing the memory in
the “SELF-DIAG [CURRENT]”.
has been stored in the past.
A
B
C
D
E
F
G
SRS
c.Touch “TROUBLE DIAG RECORD”.
● The diagnosis results (malfunction parts stored in the diagno-
sis sensor unit) stored in the self-diagnosis results are displayed.
● The memory of “TROUBLE DIAG RECORD” cannot be
erased.
7.Each diagnostic code is displayed.
8.Touch “PRINT,” if required.
9.Based on each diagnosis result, repair or replace the malfunction parts.
CAUTION:
Be sure to start the work after the following steps. Turn the
ignition switch OFF, and disconnect the battery ground
cable. Then wait for at least 3 minutes.
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SRS-23
Page 94
TROUBLE DIAGNOSIS
10. After repairing the malfunction, touch “SELF-DIAG [CURRENT]”
to check that “No DTC IS DETECTED” is displayed.
● After checking the display, touch “ERASE”.
● If any malfunction is displayed on “SELF-DIAG [CURRENT],
repair or replace the malfunctioning again.
11. Touch “BACK” key of CONSULT- I I t o “SE L E C T S Y S TEM”
screen. Touch “SELF-DIAG [PAST].
12. Check that no malfunction is detected on “SELF-DIAG [PAST].
● If any malfunction is deployed, Touch “ERASE” in the “SELF-
DIAG [CURRENT]” screen, and check the display.
SRS701
SRS702
13. Turn ignition switch OFF, then turn off and disconnect CONSULT-II.
14. Turn ignition switch ON, and check the system with the SRS air bag warning lamp (User mode).
15. Check that no malfunction is detected. Now the diagnosis is complete.
DIAGNOSTIC PROCEDURE 3
Inspecting SRS Malfunctioning Record
If the warning lampreys mode) indicates any malfunction, but no malfunction is detected in “SELF-DIAG
[CURRENT]” on CONSULT-II, carry out the following steps.
●Erase the memory that stored in diagnosis sensor unit.
●Check that no malfunction is detected on “SELF-DIAG [PAST] and “TROUBLE DIAG RECORD” then go
to SRS-24, "
●Check that the battery voltage is 9V or more. If it is below 9V, charge the battery.
DIAGNOSTIC PROCEDURE 3" .
DIAGNOSTIC PROCEDURE 4
Inspecting SRS malfunctioning parts by using CONSULT-II-Diagnosis mode-
●To uc h “ S EL F- DI AG [PA S T] ” o n C O NS ULT – II , r e pa ir o r r e pl a ce
the malfunction part displayed on the screen.
●If no malfunction is displayed on “SELF-DIAG [PAST]”, touch
“BACK” key of CONSULT-II, then touch “TROUBLE DIAG
RECORD”. Malfunction part is displayed on CONSULT–II
screen, and repair or replace the malfunction part displayed on
the screen.
SHIA0181E
Revision: 2004 April 2002 Q45
SRS-24
Page 95
TROUBLE DIAGNOSIS
Diagnostic Code Chart
Diagnostic itemExplanation
NO DTC IS
DETECTED.
DRIVER AIRBAG
MODULE
[OPEN]
DRIVER AIRBAG
MODULE
[VB-SHORT]
DRIVER AIRBAG
MODULE
[GND-SHORT]
DRIVER AIRBAG
MODULE
[SHORT]
ASSIST A/B MODULE
[VB-SHORT]
ASSIST A/B MODULE
[OPEN]
ASSIST A/B MODULE
[GND-SHORT]
ASSIST A/B MODULE
[SHORT]
CRASH ZONE SEN
[UNIT FAIL]
CRASH ZONE SEN
[COMM FAIL]
CRASH ZONE SEN
[UNMATCH]
SIDE MODULE LH
[OPEN]
SIDE MODULE LH
[VB-SHORT]
SIDE MODULE LH
[GND-SHORT]
SIDE MODULE LH
[SHORT]
When malfunction is
indicated by the “AIR
BAG” warning lamp in
User mode.
● No malfunction is detected.—
● Driver air bag module circuit is open (including the spiral cable). 1. Visually check the wiring harness
● Driver air bag module circuit is shorted to some power supply
circuit (including the spiral cable).
● Driver air bag module circuit is shorted to ground (including the
spiral cable).
● Driver air bag module circuits are shorted to each other.
● Front passenger air bag module circuit is shorted to some
power supply circuit.
● Front passenger air bag module circuit is open.
● Front passenger air bag module circuit is shorted to ground.
● Front passenger air bag module circuits are shorted to each
other.
● Crash zone sensor1. Visually check the wiring harness
● Front LH side air bag module circuit is open.1. Visually check the wiring harness
● Front LH side air bag module circuit is shorted to some power
supply circuit.
● Front LH side air bag module circuit is shorted to ground.
● Front LH side air bag module circuits are shorted to each other.
Repair order
“Recheck SRS at each replacement”
● Low battery voltage (Less than 9V)● Go to SRS-24, "DIAGNOSTIC PRO-
CEDURE 3" .
● Self-diagnostic result “SELF-DIAG
[PAST]” (previously stored in the
● Go to SRS-22, "DIAGNOSTIC PRO-
CEDURE 2" .
memory) might not be erased after
repair.
● Intermittent malfunction has been
detected in the past.
connection.
2. Replace the harness if it has visible
damage.
3. Replace driver air bag module.
(Before disposal, it must be
deployed.)
4. Replace the spiral cable.
5. Replace the diagnosis sensor unit.
6. Replace the related harness.
1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace front passenger air bag
module. (Before disposal of it, it
must be deployed.)
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
connection.
2. Replace the harness if it has visible
damage.
3. Replace the crash zone sensor.
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
connection.
2. Replace the harness if it has visible
damage.
3. Replace front LH side air bag module.
(Before disposal, it must be
deployed.)
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
A
B
C
D
E
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SRS
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Revision: 2004 April 2002 Q45
SRS-25
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TROUBLE DIAGNOSIS
Diagnostic itemExplanation
SIDE MODULE RH
● Front RH side air bag module circuit is open.1. Visually check the wiring harness
[OPEN]
SIDE MODULE RH
[VB-SHORT]
SIDE MODULE RH
● Front RH side air bag module circuit is shorted to some power
supply circuit.
● Front RH side air bag module circuit is shorted to ground.
[GND-SHORT]
SIDE MODULE RH
● Front RH side air bag module circuits are shorted to each other.
[SHORT]
SATELLITE SENS LH
● LH side air bag (Satellite) sensor1. Visually check the wiring harness
[UNIT FAIL]
SATELLITE SENS LH
[COMM FAIL]
SATELLITE SENS LH
[UNMATCH]
SATELLITE SENS RH
● RH side air bag (Satellite) sensor1. Visually check the wiring harness
[UNIT FAIL]
SATELLITE SENS RH
[COMM FAIL]
SATELLITE SENS RH
[UNMATCH]
PRE-TEN FRONT LH
● The circuit for front LH pre-tensioner is open.
[OPEN]
PRE-TEN FRONT LH
[VB-SHORT]
PRE-TEN FRONT LH
● The circuit for front LH pre-tensioner is shorted to some power
supply circuit.
● The circuit for front LH pre-tensioner is shorted to ground.
[GND-SHORT]
PRE-TEN FRONT RH
[OPEN]
PRE-TEN FRONT RH
[VB-SHORT]
PRE-TEN FRONT RH
● The circuit for front RH pre-tensioner is shorted to some power
supply circuit.
● The circuit for front RH pre-tensioner is shorted to some power
supply circuit.
● The circuit for front RH pre-tensioner is shorted to ground.
[GND-SHORT]
Repair order
“Recheck SRS at each replacement”
connection.
2. Replace the harness if it has visible
damage.
3. Replace front RH side air bag mod-
ule.
(Before disposal, it must be
deployed.)
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
connection.
2. Replace the harness if it has visible
damage.
3. Replace the LH side air bag (satel-
lite) sensor.
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
connection.
2. Replace the harness if it has visible
damage.
3. Replace the RH side air bag (satel-
lite) sensor.
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
1. Visually check the wiring harness
connections.
2. Replace the harness if it has visible
damage.
3. Replace front LH seat belt.
(Before disposing, it must be deactivated.)
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
1. Visually check the wiring harness
connections.
2. Replace the harness if it has visible
damage.
3. Replace front RH seat belt.
(Before disposing, it must be deactivated.)
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
Revision: 2004 April 2002 Q45
SRS-26
Page 97
TROUBLE DIAGNOSIS
Diagnostic itemExplanation
CURTAIN MODULE LH
[OPEN]
CURTAIN MODULE LH
[VB-SHORT]
CURTAIN MODULE LH
[GND-SHORT]
CURTAIN MODULE RH
[OPEN]
CURTAIN MODULE RH
[VB-SHORT]
CURTAIN MODULE RH
[GND-SHORT]
CONTROL UNIT
● The LH side curtain air bag module circuit is open.1. Visually check the wiring harness
● The LH side curtain air bag module circuit is shorted to some
power supply circuits.
● The LH side curtain air bag module circuit is shorted to ground.
● The RH side curtain air bag module circuit is open.1.Visually check the wiring harness
● The RH side curtain air bag module circuit is shorted to some
power supply circuit.
● The RH side curtain air bag module circuit is shorted to ground.
● Diagnosis sensor unit is malfunctioning.1. Visually check the wiring harness
Repair order
“Recheck SRS at each replacement”
connection.
2. Replace the harness if it has visible
damage.
3. Replace LH side curtain air bag
module.
(Before disposal, it must be
deployed.)
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
connection.
2. Replace the harness if it has visible
damage.
3. Replace RH side curtain air bag
module.
(Before disposal, it must be
deployed.)
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
connection.
2. Replace the diagnosis sensor unit.
A
B
C
D
E
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SRS
NOTE:
●Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunc-
tion is eliminated using air bag warning lamp or CONSULT-II each time repair is finished. If malfunction is
still observed, proceed to the next step. When malfunction is eliminated, further repair work is not
required.
●Follow the procedures in numerical order when repairing malfunctioning parts, then make the system
check.
●The screen contents are the same as the self-diagnosis results, self-diagnosis results “SELF-DIAG [CUR-
RENT]” and “SELF-DIAG [PAST]”.
Trouble Diagnoses without CONSULT-II.EHS0009B
DIAGNOSTIC PROCEDURE 5
CAUTION:
SRS will not enter diagnosis mode if no malfunction is detected in user mode.
1.Turn ignition switch “ON”.
2.After “AIR BAG” warning lamp lights for 7seconds, turn ignition switch “OFF” within 1seconds.
3.Wait more than 3 seconds.
4.Repeat the steps 1 to 2 two times.
5.Turn ignition switch ON”.
6.Compare the number of flashes to Air Bag Warning Lamp Flash Code.
7.Turn the ignition switch OFF, and disconnect the battery ground terminal.
8.Repair the system as outlined by the “REAPIR ORDER” in “Warning Lamp Flash Code Chart” that corresponds to flash code.
9.After the repairing of malfunction, connect the battery ground cable, and turn the ignition switch ON.
10. Check that no malfunction is detected.
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Revision: 2004 April 2002 Q45
SRS-27
Page 98
TROUBLE DIAGNOSIS
WARNING LAMP FLASH CODE CHART
SHIA0026E
SHIA0027E
SHIA0028E
SHIA0029E
Revision: 2004 April 2002 Q45
SRS-28
Page 99
TROUBLE DIAGNOSIS
A
B
C
SHIA0083E
SHIA0030E
SHIA0031E
D
E
F
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SRS
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Revision: 2004 April 2002 Q45
SRS-29
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TROUBLE DIAGNOSIS
SHIA0033E
SHIA0034E
SHIA0035E
SHIA0084E
Revision: 2004 April 2002 Q45
SRS-30
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