vdc off INFINITI M35 2007 Factory Service Manual

ACS-2Revision: 2007 April2007 M35/M45 PLY CIR 2 ............................................................... 42
DTC 3 VHCL SPEED SE CIRC .............................. 43
DTC 4 ABS/TCS/VDC CIRC .................................. 43
DTC 5 BRAKE SW/STOP L SW ............................. 44
DTC 6 OPERATION SW CIRC ............................... 48
DTC 12 LASER BEAM OFFCNTR ......................... 49
DTC 13 STOP LAMP RLY FIX ............................... 50
DTC 14 ECM CIRCUIT ........................................... 56
DTC 15 GEAR POSITION ...................................... 57
DTC 16 RADAR STAIN .......................................... 58
DTC 18 LASER AIMING INCMP ............................ 58
DTC 21 UNIT HIGH TEMP ..................................... 58
DTC 24 NP RANGE ............................................... 59
DTC 25 SHIFT RANGE IND ................................... 59
DTC 26 ECD MODE MALF .................................... 60
DTC 27 ECD PWR SUPLY CIR .............................. 60
DTC 100 CAN COMM CIRCUIT ............................. 61
DTC 110 CONTROL UNIT (CAN) ........................... 61
TROUBLE DIAGNOSIS FOR SYMPTOMS .............. 62
Symptom Chart ....................................................... 62
Symptom 1: MAIN Switch Does Not Turn ON*
1 ,
MAIN Switch Does Not Turn OFF*
2 ........................ 63Symptom 2: ICC System Cannot Be Set (MAIN
Switch Turns ON/OFF) ............................................ 64
Symptom 3: ICC System Cannot Be Operated by
CANCEL Switch, RESUME/ACCELERATE Switch
or DISTANCE Switch .............................................. 65
Symptom 4: ICC System Is Not Cancelled When
the A/T Selector Lever Is In Other Than “D” and “M” ... 65
Symptom 5: Chime Does Not Sound ...................... 66
Symptom 6: Driving Force Is Hunting ..................... 67
Symptom 7: ICC System Frequently Cannot Detect
the Vehicle Ahead/ Detection Zone Is Short ........... 67
Symptom 8: The System Does Not Detect the Vehi-
cle Ahead at All ....................................................... 68
ELECTRICAL COMPONENT INSPECTION ............. 69
ICC Steering Switch ................................................ 69
ICC Brake Hold Relay ............................................. 69
ICC Brake Switch and Stop Lamp Switch ............... 69
REMOVAL AND INSTALLATION .............................. 70
ICC Sensor Integrated Unit ..................................... 70
REMOVAL ............................................................ 70
INSTALLATION .................................................... 70
ICC Steering Switch ................................................ 70

TROUBLE DIAGNOSIS - GENERAL DESCRIPTION
ACS-31
[ICC]
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Revision: 2007 April2007 M35/M45
Display Item List
Laser Beam Adjust
For details, refer to ACS-15, "LASER BEAM AIMING ADJUSTMENT" .
SELF-DIAGNOSTIC RESULTS
For details, refer to ACS-40, "Diagnostic Trouble Code (DTC) Chart" .
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
2. Touch any of “MAIN SIGNALS” and “SELECTION FROM
MENU” on selection screen.
3. Touch “START”.
4. Display the data monitor.
5. Touch “COPY” to print data if necessary.
Monitored Item
×: Applicable Cause of cancellation Description
OPERATING WIPER Windshield wipers were operated at HI or LO speed operation.
OPERATING ABS ABS function was operated.
OPERATING TCS TCS function was operated.
OPERATING VDC VDC function was operated.
OPE SW VOLT CIRC Outside the standard control switch input voltage was detected.
ECM CIRCUIT ECM did not permit ICC operation.
LASER SUN BEAM Intense light such as sunlight entered ICC sensor integrated unit light sensing part.
LASER TEMP Temperature around ICC sensor integrated unit became low.
OP SW DOUBLE TOUCH ICC steering switches were pressed at the same time.
WHL SPD ELEC NOISE Wheel speed sensor signal caught electromagnetic noise.
VDC/TCS OFF SW VDC OFF switch was pressed.
WHEEL SPD UNMATCH Wheel speed became different from A/T vehicle speed.
TIRE SLIP Wheel slipped.
IGN LOW VOLT Power supply voltage became low.
SNOW MODE SW Snow mode switch was pressed.
VHCL SPD DOWN Vehicle speed becomes 20 MPH (32 km/h for CANADA models) and under.
VHCL SPD UNMATCH Vehicle speed becomes unusual.
NO RECORD —
PKIB8365E
Monitored Item [unit]MAIN
SIGNALSSELEC-
TION FROM
MENUDescription
VHCL SPEED SE
[km/h] or [mph]××Indicates vehicle speed calculated from ICC sensor integrated unit through
CAN communication [ABS actuator and electric unit (control unit) transmits
vehicle speed signal (wheel speed) through CAN communication].
SET VHCL SPD
[km/h] or [mph]××Indicates set vehicle speed memorized in ICC sensor integrated unit.
THRTL OPENING
[%]××Indicates throttle position read from ICC sensor integrated unit through CAN
communication (ECM transmits accelerator pedal position signal through
CAN communication).

ACS-40
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2007 April2007 M35/M45
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMSPFP:25962
Diagnostic Trouble Code (DTC) ChartNKS004CZ
×: Applicable
DTC
No.CONSULT-II
screen termsICC
system
warning
lampFail-safe
Malfunctions detected where...Refer-
ence
page Vehicle-
to-
vehicle
distance
control
modeConven-
tional
(fixed
speed)
cruise
control
modeBrake
assist
(with
preview
function)
0CONTROL UNIT
[C1A00]××××

ICC sensor integrated unit internal
malfunction.ACS-42
1POWER SUPPLY CIR
[C1A01]××××

ICC sensor integrated unit power
supply voltage is excessively low
(less than 8V).ACS-42
2POWER SUPPLY CIR 2
[C1A02]××××

ICC sensor integrated unit power
supply voltage is excessively high
(more than 19V).ACS-42
3VHCL SPEED SE CIRC
[C1A03]××××

Wheel sensor malfunction.

ABS actuator and electric unit
(control unit) malfunction.

A/T vehicle speed sensor mal-
function.

TCM malfunction.

ICC sensor integrated unit mal-
function.ACS-43
4ABS/TCS/VDC CIRC
[C1A04]××××
VDC/TCS/ABS system malfunc-
tion.ACS-43
5BRAKE SW/STOP L SW
[C1A05]××××

Stop lamp switch harness is open
or shorted.

Stop lamp switch is stuck to OFF.

ICC brake switch or stop lamp
switch is stuck to ON.

ECM malfunction.

ABS actuator and electric unit
(control unit) malfunction.ACS-44
6OPERATION SW CIRC
[C1A06]×××

ICC steering switch harness or
spiral cable is open or shorted.

ICC steering switch malfunction.ACS-48
12LASER BEAM OFFCNTR
[C1A12]×× ×
Laser beam of ICC sensor inte-
grated unit is off the aiming point.ACS-49
13STOP LAMP RLY FIX
[C1A13]×× ×

Normally open terminal of ICC
brake hold relay is stuck.

Improper installation of ICC brake
switch or stop lamp switch.

ICC brake switch malfunction.

ECM malfunction.

ABS actuator and electric unit
(control unit) malfunction.ACS-50

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-43
[ICC]
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3. CHECK GROUND CIRCUIT FOR ICC SENSOR INTEGRATED UNIT
1. Turn ignition switch OFF.
2. Check continuity between ICC sensor integrated unit harness
connector and ground.
OK or NG
OK >> 1. Replace ICC sensor integrated unit, and adjust laser
beam aiming.
2. Erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
NG >> 1. Repair or replace ICC sensor integrated unit ground harness.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
DTC 3 VHCL SPEED SE CIRCNKS004D2
1. PERFORM ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS
1. Perform self-diagnosis.
2. Check if “ABS/TCS/VDC CIRC [C1A04]” (DTC 4) or “CAN COMM CIRCUIT [U1000]” (DTC 100) other
than “VHCL SPEED SE CIRC [C1A03]” (DTC 3) is indicated in self-diagnosis item in the display.
Is any indicated?
YES >> 1. Repair or replace applicable item. Refer to ACS-40, "Diagnostic Trouble Code (DTC) Chart" .
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO >> GO TO 2.
2. CHECK A/T VEHICLE SPEED SENSOR
With CONSULT-II
With “ICC” “DATA MONITOR”, check if “VHCL SPD AT” operates normally.
OK or NG
OK >> 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NG >> 1. Perform “A/T” self-diagnosis. Refer to AT- 9 0 , "
CONSULT-II Function (A/T)" .
2. After repairing or replacing applicable item, erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
DTC 4 ABS/TCS/VDC CIRCNKS004D3
1. PERFORM ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS
1. Perform self-diagnosis.
2. Check if “CAN COMM CIRCUIT [U1000]” (DTC100) other than “ABS/TCS/VDC CIRC [C1A04]” (DTC 4) is
indicated in self-diagnosis item in the display.
Is it indicated?
YES >> 1. CAN communication inspection. Refer to ACS-61, "DTC 100 CAN COMM CIRCUIT" .
2. After repairing or replacing applicable item, erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
NO >> GO TO 2.
ICC sensor integrated
unit connectorTerminal
GroundContinuity
E61 4 Yes
PKIB8376E

BRC-1
BRAKE CONTROL SYSTEM
F BRAKES
CONTENTS
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SECTION BRC
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BRC
Revision: 2007 April2007 M35/M45
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 Procedures without Cowl Top Cover ..... 3
Precautions for Brake System .................................. 3
Precautions for Brake Control .................................. 4
PREPARATION ........................................................... 5
Special Service Tools ............................................... 5
Commercial Service Tools ........................................ 5
ON-VEHICLE SERVICE ............................................. 6
Adjustment of Steering Angle Sensor Neutral Posi-
tion ........................................................................... 6
SYSTEM DESCRIPTION ............................................ 7
System Diagram ....................................................... 7
Functions .................................................................. 7
ABS ....................................................................... 7
EBD ....................................................................... 7
TCS ....................................................................... 8
VDC ....................................................................... 8
ECD ....................................................................... 8
Operation That Is Not "System Error" ...................... 8
ABS ....................................................................... 8
TCS ....................................................................... 8
VDC ....................................................................... 8
Hydraulic Circuit Diagram ........................................ 9
CAN Communication ................................................ 9
SYSTEM DESCRIPTION ...................................... 9
TROUBLE DIAGNOSIS ............................................ 10
Fail-Safe Function .................................................. 10
ABS, EBD SYSTEM ............................................ 10
VDC/TCS ............................................................ 10
How to Perform Trouble Diagnoses ....................... 10
BASIC CONCEPT ............................................... 10
DIAGNOSIS FLOW CHART ................................ 11
ASKING COMPLAINTS ...................................... 12
EXAMPLE OF DIAGNOSIS WORKSHEET ........ 12
Component Parts Location ..................................... 13
Schematic .............................................................. 14Wiring Diagram — VDC — ..................................... 15
Control Unit Input/Output Signal Standard ............. 21
REFERENCE VALUE FROM CONSULT-II ......... 21
CONSULT-II Functions (ABS) ................................ 23
CONSULT-II MAIN FUNCTION ........................... 23
CONSULT-II SETTING PROCEDURE ................ 23
Self-Diagnosis ........................................................ 24
OPERATION PROCEDURE ................................ 24
ERASE MEMORY ............................................... 24
DISPLAY ITEM LIST ........................................... 25
Data Monitor ........................................................... 28
OPERATION PROCEDURE ................................ 28
DISPLAY ITEM LIST ........................................... 28
Active Test .............................................................. 30
OPERATION PROCEDURE ................................ 30
TEST ITEMS ....................................................... 31
For Fast and Accurate Diagnosis ........................... 32
PRECAUTIONS FOR DIAGNOSIS ..................... 32
Basic Inspection ..................................................... 33
BASIC INSPECTION 1: BRAKE FLUID LEVEL,
LEAK INSPECTION AND BRAKE PAD .............. 33
BASIC INSPECTION 2: LOOSENESS OF
POWER SYSTEM TERMINALS AND BATTERY ... 33
BASIC INSPECTION 3: ABS WARNING LAMP,
BRAKE WARNING LAMP, VDC OFF INDICATOR
LAMP AND SLIP INDICATOR LAMP .................. 33
TROUBLE DIAGNOSIS FOR SYSTEM .................... 34
Wheel Sensor Circuit .............................................. 34
INSPECTION PROCEDURE .............................. 34
Engine System ....................................................... 36
INSPECTION PROCEDURE .............................. 36
ABS Actuator and Electric Unit (Control Unit) ........ 36
INSPECTION PROCEDURE .............................. 36
ABS Actuator and Electric Unit (Control Unit) Power
Supply and Ground Circuit ..................................... 37
INSPECTION PROCEDURE .............................. 37
ABS Motor and Motor Relay Circuit ........................ 38
INSPECTION PROCEDURE .............................. 38
Solenoid, VDC Change-Over Valve and Actuator
Relay Circuit ........................................................... 39

BRC-2Revision: 2007 April2007 M35/M45 INSPECTION PROCEDURE ............................... 39
Pressure Sensor Circuit .......................................... 40
INSPECTION PROCEDURE ............................... 40
Steering Angle Sensor Circuit ................................. 41
INSPECTION PROCEDURE ............................... 41
Stop Lamp Switch Circuit ........................................ 43
INSPECTION PROCEDURE ............................... 43
Yaw Rate/Side G Sensor Circuit ............................. 44
INSPECTION PROCEDURE ............................... 44
Brake Fluid Level Switch Circuit ............................. 46
INSPECTION PROCEDURE ............................... 46
RAS Control Unit Circuit (With RAS) ...................... 47
INSPECTION PROCEDURE ............................... 47
ICC Sensor Integrated Unit Circuit (With ICC) ........ 48
INSPECTION PROCEDURE ............................... 48
CAN Communication Circuit ................................... 48
INSPECTION PROCEDURE ............................... 48
VDC OFF Switch Circuit ......................................... 49
INSPECTION PROCEDURE ............................... 49
Parking Brake Switch Circuit .................................. 50
INSPECTION PROCEDURE ............................... 50
Warning Lamp and Indicator Lamp Circuit ............. 50
INSPECTION PROCEDURE ............................... 50
TROUBLE DIAGNOSIS FOR SYMPTOMS .............. 51
Excessive ABS Function Operation Frequency ...... 51
Unexpected Pedal Reaction ................................... 51The Braking Distance Is Long ................................. 52
ABS Function Does Not Operate ............................ 52
Pedal Vibration or ABS Operation Sound Occurs ... 52
Vehicle Jerks During VDC/TCS/ABS Control .......... 53
WHEEL SENSOR ...................................................... 54
Removal and Installation ......................................... 54
COMPONENT ...................................................... 54
REMOVAL ............................................................ 54
INSTALLATION .................................................... 54
SENSOR ROTOR ...................................................... 56
Removal and Installation ......................................... 56
REMOVAL ............................................................ 56
INSTALLATION .................................................... 56
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY) ... 57
Removal and Installation ......................................... 57
COMPONENT ...................................................... 57
REMOVAL ............................................................ 57
INSTALLATION .................................................... 58
G-SENSOR ................................................................ 59
Removal and Installation ......................................... 59
REMOVAL ............................................................ 59
INSTALLATION .................................................... 59
STEERING ANGLE SENSOR ................................... 60
Removal and Installation ......................................... 60
REMOVAL ............................................................ 60
INSTALLATION .................................................... 60

PRECAUTIONS
BRC-3
[VDC/TCS/ABS]
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Revision: 2007 April2007 M35/M45
[VDC/TCS/ABS]PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NFS000PY
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 for Procedures without Cowl Top CoverNFS000PZ
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Precautions for Brake SystemNFS000Q0

Recommended fluid is brake fluid “DOT 3”. Refer to MA-12, "RECOMMENDED FLUIDS AND LUBRI-
CANTS" .

Do not reuse drained brake fluid.

Be careful not to splash brake fluid on painted surface of body. If brake fluid is splashed on painted sur-
faces of body immediately wipe off then with cloth and then wash it away with water.

Do not use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.

Use a flare nut wrench when removing flare nuts, and use a flare
nut crowfoot and torque wrench when tighten brake tube flare
nuts.

When installing brake tubes, be sure to check torque.

Brake system is an important safety part. If a brake fluid leak is
detected, always disassemble the affected part. If a malfunction
is detected, replace part with a new one.

Before working, turn ignition switch OFF and disconnect con-
nectors of ABS actuator and electric unit (control unit) or battery
negative terminal.
WARNING:
Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.
PIIB3706J
SBR686C

BRC-4
[VDC/TCS/ABS]
PRECAUTIONS
Revision: 2007 April2007 M35/M45
Precautions for Brake ControlNFS000Q1

Just after starting vehicle after ignition switch ON, brake pedal may vibrate or motor operating noise may
be heard from engine compartment. This is normal condition.

When an error is indicated by ABS or another warning lamp, collect all necessary information from cus-
tomer (what symptoms are present under what conditions) and check for simple causes before starting
diagnostic servicing. Besides electrical system inspection, check brake booster operation, brake fluid
level, and oil leaks.

If tire size and type are used in an improper combination, or brake pads are not Genuine NISSAN parts,
stopping distance or steering stability may deteriorate.

ABS might be out of order or malfunctions by putting a radio (wiring inclusive), an antenna and a lead-in
wire near the control unit.

If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness
pinches, open circuits, and improper wiring.

VDC system may not operate normally or a VDC OFF indicator lamp or SLIP indicator lamp may light.
–When replacing the following parts with parts other than genuine parts or making modifications: Suspen-
sion-related parts (shock absorber, spring, bushing, etc.), tires, wheels (other than specified sizes), brake-
related parts (pad, rotor, caliper, etc.), engine-related parts (muffler, ECM, etc.) and body reinforcement-
related parts (roll bar, tower bar, etc.).
–When driving with worn or deteriorated suspension, tires and brake-related parts.

BRC-6
[VDC/TCS/ABS]
ON-VEHICLE SERVICE
Revision: 2007 April2007 M35/M45
ON-VEHICLE SERVICEPFP:00000
Adjustment of Steering Angle Sensor Neutral PositionNFS000Q4
In case of doing work that applies to the list below, make sure to adjust neutral position of steering angle sen-
sor before running vehicle.
×: Required
–: Not required
CAUTION:
To adjust neutral position of steering angle sensor, make sure to use CONSULT-II.
(Adjustment cannot be done without CONSULT-II.)
1. Stop vehicle with front wheels in straight-ahead position.
2. Perform “CONSULT-II Starting Procedure”. Refer to GI-38, "
CONSULT-II Start Procedure" .
3. Turn ignition switch ON and touch the CONSULT-II screen in the order of “ABS”, “WORK SUPPORT” and
“ST ANG SEN ADJUSTMENT”.
4. Touch “START”.
CAUTION:
Do not touch steering wheel while adjusting steering angle
sensor.
5. After approximately 10 seconds, touch “END”. (After approxi-
mately 60 seconds, it ends automatically.)
6. Turn ignition switch OFF, then turn it ON again.
CAUTION:
Be sure to perform above operation.
7. Run vehicle with front wheels in straight-ahead position, then
stop.
8. Select “DATA MONITOR”, “ECU INPUT SIGNALS”, and “STR ANGLE SIG” on CONSULT-II screen. Then
make sure “STR ANGLE SIG” is within 0±2.5°. If value is more than specification, repeat steps 1 to 7.
9. Erase memory of ABS actuator and electric unit (control unit) and ECM. ABS actuator and electric unit
(control unit): Refer to BRC-24, "
ERASE MEMORY" . ECM: Refer to EC-90, "TROUBLE DIAGNOSIS"
(VQ35DE), EC-792, "TROUBLE DIAGNOSIS" (VK45DE).
10. Turn ignition switch OFF.
Situation Adjustment of Steering Angle Sensor Neutral Position
Removing/Installing ABS actuator and electric unit (control unit)−
Replacing ABS actuator and electric unit (control unit)×
Removing/Installing steering angle sensor×
Removing/Installing steering components×
Removing/Installing suspension components×
Change tires to new ones–
Tire rotation–
Adjusting wheel alignment×
SFIA0793E

SYSTEM DESCRIPTION
BRC-7
[VDC/TCS/ABS]
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Revision: 2007 April2007 M35/M45
SYSTEM DESCRIPTIONPFP:00000
System DiagramNFS000Q5
FunctionsNFS000Q6
ABS

Anti-Lock Brake System is a function that detects wheel revolution while braking, electronically controls
braking force, and prevents wheel locking during sudden braking. It improves handling stability and
maneuverability for avoiding obstacles.

Electrical system diagnosis by CONSULT-II is available.
EBD

Electronic Brake force Distribution is a following function. ABS actuator and electric unit (control unit)
detects subtle slippages between the front and rear wheels during braking. Then it electronically controls
the rear braking force (brake fluid pressure) to reducing and reduces rear wheel slippage. Accordingly it
improves vehicle stability.

Electrical system diagnosis by CONSULT-II is available.
1. Electric line 2. Brake hydraulic line 3. ECM
4. TCM 5. Steering angle sensor 6. Warning lamp, indicator lamp
(combination meter)
7. AWD control unit
(AWD models)8. ICC sensor integrated unit
(with ICC)9. RAS control unit
(with RAS)
10. Injector operation signal 11. CAN communication 12. Front RH wheel sensor
13. Front LH wheel sensor 14. Master cylinder 15. ABS actuator and electric unit (con-
trol unit)
16. VDC OFF switch 17. Yaw rate/side G sensor 18. Rear RH wheel sensor
19. Rear LH wheel sensor
SFIA2722J