power steering INFINITI FX35 2007 Owner's Manual
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2007, Model line: FX35, Model: INFINITI FX35 2007Pages: 4366, PDF Size: 55.42 MB
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PRECAUTIONS BL-5
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NIS001LF
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. 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 whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
To avoid rendering the SRS inoperative, 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 per-
formed 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.
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectNIS001LG
NOTE:
This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).
Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″ LOCK ″ position.
Always use CONSULT-II 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 NVIS/IVIS, an electrically controlled steering lock
mechanism 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 power 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.
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-II.
Precautions for WorkNIS001LH
After removing and installing the opening/closing parts, be sure to carry out fitting adjustments to check
their operation.
Check the lubrication level, damage, and wear of each part. If necessary, grease or replace it.
Page 830 of 4366
BL-18
RADIATOR CORE SUPPORT
Revision: 2006 July 2007 FX35/FX45
RADIATOR CORE SUPPORTPFP:62500
Removal and InstallationNIS001LR
REMOVAL
1. Remove the front fender protector. Refer to EI-24, "Removal and Installation" .
2. Remove the front bumper. Refer to EI-14, "
Removal and Installation" .
3. Remove the ICC. Refer to ACS-75, "
REMOVAL AND INSTALLATION" .
4. Remove the headlamp. Refer to LT- 3 5 , "
Removal and Installation" .
5. Remove the washer tank. Refer to WW-37, "
Removal and Installation of Washer Tank" .
6. Remove the resonator. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" or EM-177, "AIR CLEANER
AND AIR DUCT" .
7. Remove the power steering oil cooler. Refer to PS-41, "
HYDRAULIC LINE" .
8. Remove the ambient sensor. Refer to AT C - 11 6 , "
Removal and Installation" .
9. Remove the crash zone sensor. Refer to SRS-50, "
Removal and Installation" .
10. Remove the horn connector, cooling fan connector and harness clip.
11. Remove the hood lock and disconnect hood lock control cable. Refer to BL-15, "
Removal and Installation
of Hood Lock Control" .
12. Remove the reservoir tank. Refer to CO-41, "
Removal and Installation" or CO-14, "Removal and Installa-
tion" .
13. Remove mounting blots and remove radiator core support. Remove mounting bolts with power tool.
1. Radiator core support assembly 2. Bolt 3. Bolt
4. Horn (High) 5. Air guide (RH) 6. Cooling fan
7. Air guide (LH) 8. Horn (Low)
PIIA6018E
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BL-90
INTELLIGENT KEY SYSTEM
Revision: 2006 July 2007 FX35/FX45
accepted, a door lock or door unlock request signal is sent to BCM via CAN communication to lock/unlock
the door.
When door lock/unlock is performed using Intelligent Key remote controller button operation, operation
confirmation is conducted by making hazard lamps flash and Intelligent Key warning buzzer sound.
OPERATION CONDITION
Door lock/unlock operation is necessary for all doors close.
Map Lamp And Keyhole Illumination Function
When the following conditions come:
condition of map lamp switch is DOOR position;
door switch OFF (when all the doors are closed);
Remote control button of Intelligent Key turns on interior lamp (for 30 seconds) with input of UNLOCK signal
from Intelligent Key.
Panic Alarm Function
When key switch is OFF and ignition knob is not pushed (when mechanical key is not inserted in ignition
knob), BCM turns ON and OFF horn and headlamp intermittently with input of PANIC ALARM signal from
Intelligent Key. The alarm automatically turns off after 25 seconds or when Intelligent Key unit receives any
signal from Intelligent Key.
Panic alarm operation mode can be changed using “WORK SUPPORT” mode in “PANIC ALARM DELAY”.
Refer to BL-116, "
WORK SUPPORT" .
Remote Control Power Window Down (Open) Operation
When Intelligent Key unlock switch is turned ON with ignition switch OFF, and Intelligent Key unlock switch is
detected to be on continuously for 3 seconds, the driver's door and passenger's door power windows are
simultaneously opened.
Power window is operated to open and the operation continues as long as the Intelligent Key unlock switch is
pressed.
Remote control power window down operation mode can be changed using “P/W DOWN DELAY” mode in
“WORK SUPPORT”. Refer to BL-116, "
WORK SUPPORT" .
Key Reminder Function
As an operation verification function, when doors are locked or unlocked using Intelligent Key remote control-
ler button operation, hazard lamps flash and horn sounds.
ENGINE STARTUP FUNCTION
Operation Description
When ignition knob is pressed, Intelligent Key unit sends request signal from inside key antenna, key-ID
verification is conducted with Intelligent Key using two-way communication, and if verification is success-
ful, an ignition rotation prohibition latch release signal is sent to steering lock unit. Steering lock unit
releases ignition knob rotation prohibition latch. (Ignition knob can now be turned.)
When it becomes possible to rotate the ignition knob, “KEY” warning lamp in combination meter lights up
green to notify driver that ignition knob can be turned.
NOTE:
When it becomes impossible to rotate the ignition knob, “KEY” warning lamp in combination meter lights
up red.
When key-ID verification is successful and ignition knob switch is in the ON state, Intelligent Key unit uses
CAN communication to send engine start permission signal to BCM.
When BCM receives engine start permission signal, it uses CAN communication to sent starter request
signal to IPDM E/R so that the engine will start when ignition knob is rotated to START position.
Operation Range
Engine can be started when Intelligent Key is in the vehicle. However, sometimes engine might not start when
Intelligent Key is on instrument panel, rear parcel shelf, or in glove box.
Vehicle operation Hazard lamp Horn
Door unlocking operation Once —
Door locking operation Twice Once
Page 923 of 4366
INTELLIGENT KEY SYSTEM BL-111
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Terminals and Reference Value for INTELLIGENT KEY UNITNIS001NB
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color Item Signal
Input/
output Condition
Voltage (V) (Approx.)
Ignition
knob
position Operation or conditions
1R/W Steering lock unit power
supply Output LOCK — 5
2 L CAN-H Input/
Output —— —
3 P CAN-L Input/
Output —— —
4LG Intelligent Key warning
buzzer Output LOCK Operate remote
controller button
or door request switch. Buzzer
OFF Battery voltage
Sound
buzzer 0
5W/L Door request switch
(driver side) Input — Door request switch operation:
Press (ON). 0
Other than the above (OFF) 5
6 W Ignition switch (ON) Input ON or
START — Battery voltage
7 B/W key switch Input LOCK Insert mechanical key into igni-
tion key cylinder. Battery voltage
Remove mechanical key from
ignition key cylinder. 0
10 LG Ignition switch (ACC) Input ACC or
ON — Battery voltage
11 L/R Power source (Fuse) Input — — Battery voltage
12 B Ground — — — 0
13 P Inside key antenna (+)
(Luggage room) Output
LOCK Any door open
→ all doors shut
(Door switch: ON → OFF)
14 L Inside key antenna (-)
(Luggage room) Output
15 G Inside key antenna (+)
signal
(Dashboard) Output
LOCK Any door open
→ Close (Door
switch: ON → OFF)
Ignition knob switch: ON (press
ignition knob.)
16 R Inside key antenna (-)
signal
(Dashboard) Output
17 L Back door antenna (+) Output
LOCK Back door request switch opera-
tion (Switch: ON)
18 W/L Back door antenna (-) Output
SIIA1910J
SIIA1910J
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INTELLIGENT KEY SYSTEM BL-113
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Terminals and Reference Value for Steering Lock unitNIS001NC
Terminals and Reference Value for BCMNIS001ND
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minal Wire
color Item Signal
Input/
output Condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
1 L/R Power source (Fuse) Input LOCK — Battery voltage
2R/W Steering lock unit
power supply Input LOCK — 5
3R/B Steering lock unit com-
munication signal Input LOCK Press ignition knob with
Intelligent Key inside vehi-
cle.
Other than the above 5
4Y/B Steering lock unit
ground —— — 0
SIIA1911J
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nal Wire
color Item Signal
Input/
output Condition
Voltage (V)
(Approx.)
1PU Key ring illumination
output signal Output Key ring illumination is lighting. Battery voltage
Key ring illumination is being turned off. 0
12 P/B Front door switch (Pas-
senger side) Input Door open (ON)
→ Close (OFF) 0 → Battery voltage
13 P/L Rear door switch RH Input Door open (ON) → Close (OFF) 0 → Battery voltage
37 B/W Key switch Input Insert mechanical key from ignition key
cylinder. Battery voltage
Remove mechanical key from ignition
key cylinder. 0
38 W/L Ignition switch (ON) Input Ignition switch is in ON or START posi-
tion Battery voltage
39 L CAN-H Input/
Output ——
40 P CAN-L Input/
Output ——
41 R/B Battery saver output
signal Output 30 minutes after ignition switch is turned
to OFF 0
Ignition switch is in ON position Battery voltage
42 L/R Power source (Fuse) Input — Battery voltage
44 Y Driver door lock actua-
tor (Unlock) Output
Door lock / unlock switch
(Free → Unlock) 0
→ Battery voltage
45 G/W Left turn signal lamp Output When door lock or unlock is operated
using Intelligent Key.*
1
(ON → OFF) Battery voltage
→ 0
46 BR/W Right turn signal lamp Output When door lock or unlock is operated
using Intelligent Key.*
1
(ON → OFF) Battery voltage
→ 0
47 Y/R Step lamp output sig-
nal Output Step lamp is lighting. 0
Step lamp is being turned off. Battery voltage
Page 933 of 4366
INTELLIGENT KEY SYSTEM BL-121
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ENGINE START FUNCTION MALFUNCTION
Intelligent Key Operation Inspection
Mechanical Key Operation Inspection
WARNING CHIME FUNCTION MALFUNCTION
Before conducting the diagnosis in the following table, check “key reminder function” with power door lock sys-
tem.
Symptom Diagnoses service procedure Refer to page
Ignition knob can not turn
KEY warning lamp on combination meter
lights up in red when ignition knob is
pressed. (door lock functions normal) 1. Intelligent Key battery inspection
BL-147
2. Check inside key antennaBL-138
3. Replace Intelligent Key unitBL-146
KEY warning lamp on combination meter
lights up in green when ignition knob is
pressed. 1. Check ignition knob switch
BL-1272. Check steering lock unitBL-139
3. Check Intelligent Key unit power supply and ground circuitBL-124
4. Replace Intelligent Key unitBL-146
Ignition knob turns even without both Intelli-
gent Key and mechanical key. Replace steering lock unit —
Security indicator will still flash when igni-
tion knob is pressed. 1. Check key switch (Intelligent Key unit input)
BL-125
2. Replace Intelligent Key unitBL-146
Security indicator does not flash with igni-
tion knob released at LOCK position. (push
switch OFF) 1. CAN communication system
BL-124
2. Ignition knob switch systemBL-127
3. Intelligent Key unit power supply and ground circuitBL-124
Starter motor does not cranking.
(Ignition knob can turn) 1. Check detention switch
BL-1422. Check stop lamp switchBL-141
3. Replace Intelligent Key unitBL-146
Symptom Diagnoses service procedure Refer to page
Ignition knob can not turn
Security indicator remains flashing with
mechanical key inserted. 1. Check key switch (BCM input)
BL-126
2. Replace Intelligent Key unitBL-146
KEY indicator and security indicator does
not flashing with mechanical key inserted. 1. Check stop lamp switch
BL-141
2. Replace Intelligent Key unitBL-146
Starter motor does not cranking.
(Ignition knob can turn) 1. Check detention switch
BL-1422. Check stop lamp switchBL-141
3. Replace Intelligent Key unitBL-146
Symptom Diagnoses service procedure Refer to page
Ignition key warning chime is inoperative.
(When mechanical key used) 1. Check CAN communication
BL-124
2. Check key switch (Intelligent Key unit input)BL-125
3. Check door switchBL-129
4. Inspect combination meter (warning) DI-5
5. Replace Intelligent Key unitBL-146
Ignition knob OFF position warning
chime (for inside vehicle) does not
sound.
(Ignition key warning chime operates) 1. Check CAN communication
BL-1242. Check ignition knob switchBL-127
3. Check key switch (Intelligent Key unit input)BL-125
4. Replace Intelligent Key unitBL-146
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INTELLIGENT KEY SYSTEM BL-139
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Revision: 2006 July 2007 FX35/FX45
3. CHECK INSIDE KEY ANTENNA
1. Disconnect Intelligent Key unit connector.
2. Check continuity between inside key antenna connector M70, M153 (dash board), B68 (luggage room) terminals 1, 2 and Intelligent Key unit connector terminals 13, 14, 15, 16, 35 and 36.
3. Check continuity between inside key antenna connector M70, M153 (dash board), B68 (luggage room) terminals 1 and 2 and
ground.
OK or NG
OK >> Replace Intelligent Key unit.
NG >> Repair or replace harness between inside key antenna and Intelligent Key unit.
Check Steering Lock UnitNIS001NW
1. CHECK STEERING LOCK UNIT POWER SUPPLY
1. Turn ignition knob LOCK position.
2. Disconnect steering lock unit connector.
3. Check voltage between steering lock unit connector M26 terminal 1 (L/R) and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace steering lock unit power supply circuit.
Item Terminal Continuity
Inside key antenna-3 (Luggage room) 1 (OR/L) 13 (P)
Ye s
2 (W/L) 14 (L)
Inside key antenna-1 (Dash board) 1 (G) 15 (G)
2 (R) 16 (R)
Inside key antenna-2 (Dash board) 1 (LG) 35 (LG)
2 (PU) 36 (PU)
Item Terminal Continuity
Inside key antenna-3 (Luggage room) 1 (OR/L)
Ground No
2 (W/L)
Inside key antenna-1 (Dash board) 1 (G)
2 (R)
Inside key antenna-2 (Dash board) 1 (LG)
2 (PU)
PIIB8513E
1 (L/R) - Ground : Battery voltage
PIIA6797E
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INTELLIGENT KEY SYSTEM BL-141
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4. CHECK STEERING LOCK UNIT COMMUNICATION CIRCUIT
1. Disconnect Intelligent Key unit and steering lock unit connectors.
2. Check continuity between Intelligent Key unit connector M34 terminals 1, 31, 32 and steering lock unit connector M26 terminals 2, 3, 4.
3. Check continuity between steering lock unit connector M26 ter- minals 2, 3, 4 and ground.
OK or NG
OK >> Replace steering lock unit.
After replacing steering lock unit, perform registration procedure. Refer to “CONSULT-II Opera-
tion Manual NATS-IVIS/NVIS”.
NG >> Repair or replace harness between steering lock unit and Intelligent Key unit.
Check Stop Lamp SwitchNIS001NX
1. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Disconnect stop lamp switch connector.
2. Check voltage between stop lamp switch connector E210 termi- nal 1 (GY) and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness between stop lamp switch and fuse.
2. CHECK STOP LAMP SWITCH OPERATION
Check continuity between stop lamp switch connector E210 terminal
1 and 2.
OK or NG
OK >> GO TO 3.
NG >> Replace stop lamp switch. 1 (R/W) - 2 (R/W) : Continuity should exist.
31 (Y/B) - 4 (Y/B) : Continuity should exist.
32 (R/B) - 3 (R/B) : Continuity should exist.
2 (R/W) - Ground : Continuity should not exist. 3 (R/B) - Ground : Continuity should not exist.4 (Y/B) - Ground : Continuity should not exist.
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1 (GY) - Ground : Battery voltage
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1 - 2
Brake pedal depressed : Continuity should exist.
Brake pedal not
depressed : Continuity should not exist.
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Page 1023 of 4366
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-211
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Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Value for Steering Lock Unit/with Intelligent Key Sys-
tem
NIS001PP
Terminals and Reference Value for Intelligent Key Unit/with Intelligent Key Sys-
tem
NIS001PQ
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color Signal Designation Signal
Input/
output Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
1 L/R Power source (Fuse) Input LOCK — Battery voltage
2R/W Steering lock unit
power supply Input LOCK — 5
3R/B Steering lock unit com-
munication signal Input LOCK Press ignition knob with Intel-
ligent Key inside vehicle.
Other than the above 5
4Y/B Steering lock unit
ground —— — 0
SIIA1911J
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minal Wire
color Signal designation Signal
Input/
output Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
1R/W Steering lock unit power
supply Output LOCK — 5
2 L CAN-H Input/
Output —— —
3 P CAN-L Input/
Output —— —
6W Ignition power supply
(ON) Input ONIgnition knob ON or START
position Battery voltage
7 B/W Key switch Input LOCK Insert mechanical key into
ignition key cylinder. Battery voltage
Remove mechanical key
from ignition key cylinder. 0
11 L/R Power source (Fuse) Input — — Battery voltage
12 B Ground — — — 0
27 L/W Ignition knob switch Input — Press ignition knob. Battery voltage
Return ignition knob to
LOCK position. 0
31 Y/B Steering lock unit
ground —— — 0
32 R/B Steering lock unit com-
munication signal Output LOCK Press ignition knob with
Intelligent Key inside vehi-
cle.
Other than the above 5
SIIA1911J
Page 1127 of 4366
BRC-1
BRAKE CONTROL SYSTEM
F BRAKES
CONTENTS
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Revision: 2006 July 2007 FX35/FX45
BRAKE CONTROL SYSTEM
VDC/TCS/ABS
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Precautions for Brake System ............................. ..... 3
Precautions for Brake Control ............................. ..... 3
PREPARATION ...................................................... ..... 5
Special Service Tools .......................................... ..... 5
Commercial Service Tools ................................... ..... 5
ON-VEHICLE SERVICE ........................................ ..... 6
Adjustment of Steering Angle Sensor Neutral Posi-
tion ...................................................................... ..... 6
Calibration of Decel G Sensor (AWD Models) .... ..... 7
SYSTEM DESCRIPTION ....................................... ..... 8
System Diagram .................................................. ..... 8
Functions ............................................................. ..... 8
VDC .................................................................. ..... 8
TCS .................................................................. ..... 8
ABS .................................................................. ..... 9
EBD .................................................................. ..... 9
Fail-Safe Function ............................................... ..... 9
VDC / TCS SYSTEM ........................................ ..... 9
ABS, EBD SYSTEM ......................................... ..... 9
Hydraulic Circuit Diagram ................................... ... 10
CAN Communication ........................................... ... 10
SYSTEM DESCRIPTION ................................. ... 10
TROUBLE DIAGNOSIS ......................................... ....11
Fail-Safe Function ............................................... .... 11
VDC/TCS SYSTEM .......................................... .... 11
ABS, EBD SYSTEM ......................................... .... 11
How to Proceed with Diagnosis .......................... .... 11
BASIC CONCEPT ............................................ .... 11
DIAGNOSIS FLOWCHART ............................. ... 12
ASKING COMPLAINTS ................................... ... 13
EXAMPLE OF DIAGNOSIS SHEET ................ ... 13
Component Installation Location ......................... ... 14
Schematic ........................................................... ... 15
Wiring Diagram — VDC — .................................. ... 16
Control Unit Input/Output Signal Standard .......... ... 22 REFERENCE VALUE FROM CONSULT-II ......
... 22
CONSULT-II Functions (ABS) ............................. ... 24
CONSULT-II MAIN FUNCTION ........................ ... 24
CONSULT-II SETTING PROCEDURE ............. ... 24
Self-Diagnosis ..................................................... ... 25
DESCRIPTION ................................................. ... 25
OPERATION PROCEDURE ............................. ... 25
ERASE MEMORY ............................................ ... 25
DISPLAY ITEM LIST ........................................ ... 26
Data Monitor ........................................................ ... 29
OPERATION PROCEDURE ............................. ... 29
DISPLAY ITEM LIST ........................................ ... 29
Active Test ........................................................... ... 31
OPERATION PROCEDURE ............................. ... 31
TEST ITEM ....................................................... ... 32
For Fast and Accurate Diagnosis ........................ ... 33
PRECAUTIONS FOR DIAGNOSIS .................. ... 33
Basic Inspection .................................................. ... 34
BRAKE FLUID AMOUNT, LEAKS, AND BRAKE
PADS INSPECTION ......................................... ... 34
POWER SYSTEM TERMINAL LOOSENESS
AND BATTERY INSPECTION .......................... ... 34
ABS WARNING LAMP, VDC OFF INDICATOR
LAMP, SLIP INDICATOR LAMP AND BRAKE
WARNING LAMP INSPECTION ...................... ... 34
TROUBLE DIAGNOSIS FOR SYSTEM ................. ... 36
Wheel Sensor Circuit ........................................... ... 36
INSPECTION PROCEDURE ........................... ... 36
Engine System .................................................... ... 38
INSPECTION PROCEDURE ........................... ... 38
VDC/TCS/ABS Control Unit Circuit ..................... ... 38
INSPECTION PROCEDURE ........................... ... 38
Pressure Sensor Circuit ....................................... ... 39
INSPECTION PROCEDURE ........................... ... 39
Steering Angle Sensor Circuit .............................. ... 41
INSPECTION PROCEDURE ........................... ... 41
Yaw Rate/Side G Sensor (2WD Models), Yaw Rate/
Side/Decel G Sensor (AWD Models) Circuit ........ ... 42
INSPECTION PROCEDURE ........................... ... 42
Solenoid and VDC Change-Over Valve Circuit ... ... 44