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BRC

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F BRAKES

B
SECTION
BRAKE CONTROL SYSTEM C

E
CONTENTS
ABS Warning Lamp and Indicator Timing ...................... 21 . BRC
Control Unit Input/Output Signal Standard ............ 22 .
PRECAUTIONS ......................................................... 4
. REFERENCE VALUE FROM CONSULT-II ........ 22 .
Precautions for Supplemental Restraint System CONSULT-II Function ............................................ 24 . G
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- CONSULT-II FUNCTION APPLICATION ........... 24 .
SIONER" ................................................................. 4
. CONSULT-II BASIC OPERATION PROCEDURE
Precautions for Brake System ................................. 4 . ... 24
Precautions When Using CONSULT-II .................... 4 . H
SELF-DIAGNOSIS ............................................. 25 .
CHECK POINTS FOR USING CONSULT-II ........ 4 . DATA MONITOR ................................................ 27 .
Precautions for Brake Control ................................. 5 . ACTIVE TEST .................................................... 29 .
Precautions for CAN System .................................. 5 . TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC I
Wiring Diagrams and Trouble Diagnosis ................. 6 . ITEMS ....................................................................... 31
.
PREPARATION .......................................................... 7
. Wheel Sensor System Inspection .......................... 31 .
Special Service Tool ................................................ 7
. Engine System Inspection ..................................... 32 . J
Commercial Service Tools ....................................... 7 . ABS Control Unit Inspection .................................. 33 .
SYSTEM DESCRIPTION ........................................... 8 . Actuator Motor, Motor Relay, and Circuit Inspection 33 ...
System Diagram ...................................................... 8
. Stop Lamp Switch System Inspection ................... 34 .
ABS Function .......................................................... 8
. K
ABS Control Unit Power and Ground Systems
EBD Function .......................................................... 8
. Inspection .............................................................. 35
.
Wheel Sensors ........................................................ 9
. CAN Communication System Inspection ............... 36 .
Fail-Safe Function ................................................... 9
. TROUBLE DIAGNOSES FOR SYMPTOMS ........... 37 . L
ABS/EBD SYSTEM .............................................. 9 . ABS Works Frequently .......................................... 37 .
Hydraulic Circuit Diagram ..................................... 10 . Unexpected Pedal Action ...................................... 38 .
CAN COMMUNICATION ..........................................11 . Long Stopping Distance ......................................... 39 . M
System Description ................................................11
. ABS Does Not Work .............................................. 39 .
TROUBLE DIAGNOSIS ........................................... 12 . Pedal Vibration or ABS Operation Noise ............... 39 .
How to Perform Trouble Diagnoses for Quick and ABS Warning Lamp Does Not Come On When Igni-
Accurate Repair .................................................... 12
. tion Switch Is Turned On ....................................... 40 .
INTRODUCTION ................................................ 12 . ABS Warning Lamp Stays On When Ignition Switch
WORK FLOW ..................................................... 13. Is Turned On .......................................................... 40
.
CLARIFY CONCERN ......................................... 14 . WHEEL SENSORS .................................................. 41 .
EXAMPLE OF DIAGNOSIS SHEET .................. 14 . Removal and Installation ....................................... 41 .
Component Parts and Harness Connector Location 15 ... SENSOR ROTOR .................................................... 42 .
Schematic ............................................................. 16
. Removal and Installation ....................................... 42 .
Wiring Diagram -- ABS -- .................................... 17 . REMOVAL .......................................................... 42.
Basic Inspection .................................................... 21
. INSTALLATION .................................................. 42 .
BRAKE FLUID LEVEL, FLUID LEAK, AND ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)... 43
BRAKE PAD INSPECTION ................................ 21 . Removal and Installation ....................................... 43 .
POWER SYSTEM TERMINAL LOOSENESS REMOVAL .......................................................... 43.
AND BATTERY INSPECTION ........................... 21 . INSTALLATION .................................................. 43 .
ABS WARNING LAMP INSPECTION ................ 21 .

BRC-1
TCS/ABS Actuator Motor, Motor Relay, and Circuit Inspection...75
Stop Lamp Switch System Inspection ....................76 .
PRECAUTIONS ........................................................ 45 . ABS/TCS Control Unit Power and Ground Systems
Precautions for Supplemental Restraint System Inspection ...............................................................77
.
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- CAN Communication System Inspection ...............78 .
SIONER" ................................................................ 45
. TROUBLE DIAGNOSES FOR SYMPTOMS ............79 .
Precautions for Brake System ............................... 45 . ABS Works Frequently ...........................................79 .
Precautions When Using CONSULT-II .................. 45 . Unexpected Pedal Action .......................................80 .
CHECK POINTS FOR USING CONSULT-II ....... 45 . Long Stopping Distance .........................................81 .
Precautions for Brake Control ............................... 46 . ABS Does Not Work ..............................................81 .
Precautions for CAN System ................................. 46 . Pedal Vibration or ABS Operation Noise ...............81 .
Wiring Diagrams and Trouble Diagnosis ............... 47 . ABS Warning Lamp Does Not Come On When Igni-
PREPARATION ........................................................ 48 . tion Switch Is Turned On ........................................82 .
Special Service Tool .............................................. 48 . ABS Warning Lamp Stays On When Ignition Switch
Commercial Service Tools ..................................... 48 . Is Turned On ..........................................................82
.
SYSTEM DESCRIPTION ......................................... 49 . Vehicle Jerks During TCS Activation .....................83 .
System Diagram .................................................... 49 . WHEEL SENSORS ..................................................84 .
ABS Function ......................................................... 49
. Removal and Installation ........................................84 .
EBD Function ........................................................ 49. SENSOR ROTOR .....................................................85 .
TCS Function ......................................................... 49
. Removal and Installation ........................................85 .
Wheel Sensors ...................................................... 50 . REMOVAL ...........................................................85
.
Fail-Safe Function ................................................. 50 . INSTALLATION ...................................................85 .
ABS/EBD SYSTEM ............................................ 50 . ACTUATOR AND ELECTRIC UNIT (ASSEMBLY) ...86
TCS SYSTEM ..................................................... 50 . Removal and Installation ........................................86 .
Hydraulic Circuit Diagram ...................................... 51 . REMOVAL ...........................................................86
.
CAN COMMUNICATION .......................................... 52 . INSTALLATION ...................................................86 .
System Description ................................................ 52 .
TROUBLE DIAGNOSIS ........................................... 53 .
How to Perform Trouble Diagnoses for Quick and
VDC/TCS/ABS
Accurate Repair ..................................................... 53. PRECAUTIONS ........................................................88.
INTRODUCTION ................................................ 53 . Precautions for Supplemental Restraint System
WORK FLOW ..................................................... 54 . (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
CLARIFY CONCERN ......................................... 55 . SIONER" ................................................................88
.
EXAMPLE OF DIAGNOSIS SHEET ................... 55 . Precautions for Brake System ...............................88 .
Component Parts and Harness Connector Location 56 ... Precautions When Using CONSULT-II ..................88 .
Schematic .............................................................. 57
. CHECK POINTS FOR USING CONSULT-II .......88 .
Wiring Diagram -- TCS -- .................................... 58 . Precautions for Brake Control ................................89 .
Basic Inspection .................................................... 62. Precautions for CAN System .................................89 .
BRAKE FLUID LEVEL, FLUID LEAK, AND Wiring Diagrams and Trouble Diagnosis ................90 .
BRAKE PAD INSPECTION ................................ 62 . PREPARATION ........................................................91.
POWER SYSTEM TERMINAL LOOSENESS Special Service Tool ...............................................91
.
AND BATTERY INSPECTION ............................ 62 . Commercial Service Tools .....................................91 .
ABS WARNING LAMP AND SLIP INDICATOR SYSTEM DESCRIPTION ..........................................92 .
LAMP INSPECTION ........................................... 62 . System Components ..............................................92 .
Warning Lamp and Indicator Timing ...................... 62 . ABS Function .........................................................92
.
Control Unit Input/Output Signal Standard ............. 63 . EBD Function .........................................................92
.
REFERENCE VALUE FROM CONSULT-II ........ 63 . TCS Function .........................................................93
.
CONSULT-II Function ............................................ 65 . VDC Function .........................................................93
.
CONSULT-II FUNCTION APPLICATION ............ 65 . Wheel Sensors .......................................................94
.
CONSULT-II BASIC OPERATION PROCEDURE Fail-Safe Function ..................................................94
.
... 65 ABS/EBD SYSTEM .............................................94 .
SELF-DIAGNOSIS ............................................. 66 . VDC/TCS SYSTEM ............................................94 .
DATA MONITOR ................................................. 68 . Hydraulic Circuit Diagram ......................................95 .
ACTIVE TEST .................................................... 70 . CAN COMMUNICATION ..........................................96 .
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC System Description ................................................96.
ITEMS ....................................................................... 73
. TROUBLE DIAGNOSIS ...........................................97 .
Wheel Sensor System Inspection .......................... 73 . How to Perform Trouble Diagnoses for Quick and
Engine System Inspection ..................................... 74 . Accurate Repair .....................................................97
.
ABS/TCS Control Unit Inspection .......................... 75 . INTRODUCTION ..............................................

BRC-2
WORK FLOW ..................................................... 98 . Brake Fluid Level Sensor System Inspection ...... 130 .
CLARIFY CONCERN ......................................... 99 . CAN Communication System Inspection ............. 130 . A
EXAMPLE OF DIAGNOSIS SHEET .................. 99 . Component Inspection ......................................... 131 .
Component Parts and Harness Connector Location 100 . VDC OFF SWITCH .......................................... 131 .
Schematic ........................................................... 101
. TROUBLE DIAGNOSES FOR SYMPTOMS ......... 132 . B
Wiring Diagram -- VDC -- .................................. 102 . ABS Works Frequently ........................................ 132 .
Basic Inspection .................................................. 108. Unexpected Pedal Action .................................... 133 .
BRAKE FLUID LEVEL, FLUID LEAK, AND Long Stopping Distance ....................................... 134 .
BRAKE PAD INSPECTION .............................. 108 . ABS Does Not Work ............................................ 134 . C
POWER SYSTEM TERMINAL LOOSENESS Pedal Vibration or ABS Operation Noise ............. 134 .
AND BATTERY INSPECTION ......................... 108 . ABS Warning Lamp Does Not Come On When Igni-
ABS WARNING LAMP, SLIP INDICATOR LAMP tion Switch Is Turned On ..................................... 135 . D
AND VDC OFF INDICATOR LAMP INSPECTION 108 . ABS Warning Lamp Stays On When Ignition Switch
Warning Lamp and Indicator Timing ................... 108 . Is Turned On ........................................................ 135 .
Control Unit Input/Output Signal Standard .......... 109 . Vehicle Jerks During TCS/VDC Activation .......... 136 . E
REFERENCE VALUE FROM CONSULT-II ...... 109 . ON-VEHICLE SERVICE ......................................... 137 .
CONSULT-II Function ..........................................112 . Adjustment of Steering Angle Sensor Neutral Posi-
CONSULT-II FUNCTION APPLICATION ..........112 . tion ....................................................................... 137
.
CONSULT-II BASIC OPERATION PROCEDURE Calibration of Yaw Rate/Side/Decel G Sensor .... 137 . BRC
..113 WHEEL SENSORS ................................................ 139 .
SELF-DIAGNOSIS ............................................113 . Removal and Installation ..................................... 139 .
DATA MONITOR ...............................................116 . SENSOR ROTOR .................................................. 140 . G
ACTIVE TEST ...................................................119 . Removal and Installation ..................................... 140 .
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC REMOVAL ........................................................ 140 .
ITEMS .................................................................... 121
. INSTALLATION ................................................ 140 . H
Wheel Sensor System Inspection ....................... 121 . ACTUATOR AND ELECTRIC UNIT (ASSEMBLY). 141
Engine System Inspection ................................... 122 . Removal and Installation ..................................... 141 .
ABS/TCS/VDC Control Unit Inspection ............... 123 . REMOVAL ........................................................ 141 .
I
Steering Angle Sensor System Inspection .......... 123 . INSTALLATION ................................................ 141 .
Yaw Rate/Side/Decel G Sensor System Inspection 124 . STEERING ANGLE SENSOR ............................... 143 .
Solenoid and VDC Change-Over Valve System Removal and Installation ..................................... 143 .
Inspection ............................................................ 126
. G SENSOR ............................................................. 144 . J
Actuator Motor, Motor Relay, and Circuit Inspection 127 . Removal and Installation ..................................... 144 .
Stop Lamp Switch System Inspection ................. 128 . REMOVAL ........................................................ 144 .
ABS/TCS/VDC Control Unit Power and Ground INSTALLATION ................................................ 144 . K
Systems Inspection ............................................. 129 .

BRC-3
PRECAUTIONS
[ABS]
PRECAUTIONS PFP:00001

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EFS002PT

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:
q 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.
q 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.
q 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 Brake System EFS002PU

CAUTION:
q Recommended fluid is brake fluid "DOT 3".
q Never reuse drained brake fluid.
q Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted areas, wash it away with water immediately.
q To clean or wash all parts of master cylinder and disc brake caliper, use clean brake fluid.
q Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic
system.
q Use flare nut wrench when removing and installing brake
tube.
q If a brake fluid leak is found, the part must be disassembled
without fail. Then it has to be replaced with a new one if a
defect exists.
q Turn the ignition switch OFF and remove the connector of
the ABS actuator control unit or the battery terminal before
performing the work.
q Always torque brake lines when installing.
q Burnish the brake contact surfaces after refinishing or SBR686C
replacing rotors, after replacing pads, or if a soft pedal
occurs at very low mileage.
Refer to BR-28, "Brake Burnishing" (front disc brake) or BR-35, "Brake Burnishing" (Rear disc
brake).
WARNING:
q Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.
Precautions When Using CONSULT-II EFS0031O

When connecting CONSULT-II to data link connector, connect them through CONSULT-II CONVERTER.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
CHECK POINTS FOR USING CONSULT-II
1. Has CONSULT-II been used without connecting CONSULT-II CONVERTER on this vehicle?
q If YES, GO TO 2.

q If NO, GO TO 5.

BRC-4
PRECAUTIONS
[ABS]
2. Is there any indication other than indications relating to CAN communication system in the self-diagnosis
results? A
q If YES, GO TO 3.

q If NO, GO TO 4.

3. Based on self-diagnosis results unrelated to CAN communication, carry out the inspection. B
4. Malfunctions may be detected in self-diagnosis depending on control units carrying out CAN communica-
tion. Therefor, erase the self-diagnosis results.
5. Diagnose CAN communication system. Refer to LAN-8, "CAN COMMUNICATION" . C

Precautions for Brake Control EFS002UZ

q During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is D
normal.
q Just after starting vehicle, the brake pedal may vibrate or a motor operating noise may be heard from
engine compartment. This is a normal status of operation check. E
q Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
q When an error is indicated by ABS or another warning lamp, collect all necessary information from cus- BRC
tomer (what symptoms are present under what conditions) and check for simple causes before starting
diagnosis. Besides electrical system inspection, check booster operation, brake fluid level, and fluid
leaks.
G
q If incorrect tire sizes or types are installed on the vehicle or brake pads are not Genuine NISSAN parts,
stopping distance or steering stability may deteriorate.
q If there is a radio, antenna or related wiring near control module, ABS function may have a malfunction or H
error.
q If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness
pinches, open circuits or improper wiring.
I
Precautions for CAN System EFS002V2

q Do not apply voltage of 7.0V or higher to terminal to be measured.
q Maximum open terminal voltage of tester in use must be less than 7.0V. J
q Before checking harnesses, turn ignition switch OFF and disconnect battery negative cable.
q Area to be repaired must be soldered and wrapped with tape.
K
Make sure that fraying of twisted wire is within 110 mm (4.33 in).

PKIA0306E

q Do not make a bypass connection to repaired area. (If the cir-
cuit is bypassed, characteristics of twisted wire will be lost.)

PKIA0307E

BRC-5
PRECAUTIONS
[ABS]
Wiring Diagrams and Trouble Diagnosis EFS002PV

When you read wiring diagrams, refer to the following:
q GI-12, "How to Read Wiring Diagrams"
q PG-3, "POWER SUPPLY ROUTING CIRCUIT"
When you perform trouble diagnosis, refer to the following:
q GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"
q GI-25, "How to Perform Efficient Diagnosis for an Electrical Incident"

BRC-6
PREPARATION
[ABS]
PREPARATION PFP:00002
A
Special Service Tool EFS002VV

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number B
(Kent-Moore No.) Description
Tool name
C

(J-45741) Checking operation of ABS active wheel
ABS active wheel sensor tester sensor D

WFIA0101E
E
Commercial Service Tools EFS002VW

Tool name Description
BRC

1. Flare nut crowfoot
G
a: 10mm (0.39 in)/12mm (0.47 in) Removing and installing brake piping
2. Torque wrench

S-NT360
H

BRC-7
SYSTEM DESCRIPTION
[ABS]
SYSTEM DESCRIPTION PFP:00000

System Diagram EFS002VF

WFIA0118E

ABS Function EFS002VG

q The Anti-Lock Brake System detects wheel revolution while braking and improves handling stability during
sudden braking by electrically preventing wheel lockup. Maneuverability is also improved for avoiding
obstacles.
q If the electrical system malfunctions, the Fail-Safe function is activated, the ABS becomes inoperative and
the ABS warning lamp turns on.
q The electrical system can be diagnosed using CONSULT-II.
q During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.
q Just after starting the vehicle, the brake pedal may vibrate or a motor operating noise may be heard from
engine compartment. This is a normal status of operation check.
q Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
EBD Function EFS002VH

q Electronic Brake Distribution is a function that detects subtle slippages between the front and rear wheels
during braking, and it improves handling stability by electronically controlling the brake fluid pressure
which results in reduced rear wheel slippage.
q If the electrical system malfunctions, the Fail-Safe function is activated, the EBD and ABS become inoper-
ative, and the ABS warning lamp and BRAKE warning lamp are turned on.
q The electrical system can be diagnosed using CONSULT-II.
q During EBD operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.
q Just after starting the vehicle, the brake pedal may vibrate or a motor operating noise may be heard from
engine compartment. This is a normal status of operation check.
q Stopping distance may be longer than that of vehicles without EBD when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.

BRC-8
SYSTEM DESCRIPTION
[ABS]
Wheel Sensors EFS002VX

A
The front sensor units consist of a gear-shaped sensor rotor and a
sensor element. The element contains a magnet around which a coil
is wound. The front wheel sensors are installed on the front of the B
wheel knuckles. As the wheel rotates, the sensor generates a
square-wave signal. The frequency increases as the wheel speed
increases.
C

D
LBR333

E
The rear sensor units consist of wheel hubs with a series of internal
magnets and a sensor element. The rear wheel sensors are
installed on the inner side of the wheel knuckles. As the wheel
rotates, the sensor generates a square-wave signal. The frequency BRC
increases as the wheel speed increases.

H
WFIA0033E

Fail-Safe Function EFS002VK

CAUTION: I
If the Fail-Safe function is activated, perform the Self Diagnosis for ABS system.
ABS/EBD SYSTEM
J
In case of an electrical malfunction with the ABS, the ABS warning lamp will turn on. In case of an electrical
malfunction with the EBD system, the BRAKE warning lamp and the ABS warning lamp will turn on.
The system will revert to one of the following conditions of the Fail-Safe function.
1. For ABS malfunction, only the EBD is operative and the condition of the vehicle is the same condition of K
vehicles without ABS system.
2. For EBD malfunction, the EBD and ABS become inoperative, and the condition of the vehicle is the same
as the condition of vehicles without ABS or EBD system. L

BRC-9
SYSTEM DESCRIPTION
[ABS]
Hydraulic Circuit Diagram EFS002VL

PFIA0422E

BRC-10
CAN COMMUNICATION
[ABS]
CAN COMMUNICATION PFP:23710
A
System Description EFS002W0

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec- B
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only. C
Refer to LAN-8, "CAN COMMUNICATION" .

BRC

BRC-11
TROUBLE DIAGNOSIS
[ABS]
TROUBLE DIAGNOSIS PFP:00000

How to Perform Trouble Diagnoses for Quick and Accurate Repair EFS002Z3

INTRODUCTION
The ABS system has an electronic control unit to control major func-
tions. The control unit accepts input signals from sensors and con-
trols actuator operation. It is also important to check for conventional
problems such as air leaks in the booster or lines, lack of brake fluid,
or other problems with the brake system.
It is much more difficult to diagnose a problem that occurs intermit-
tently rather than continuously. Most intermittent problems are
caused by poor electrical connections or faulty wiring. In this case,
careful checking of suspicious circuits may help prevent the replace-
ment of good parts.
A visual check only may not find the cause of the problem, so a road
SEF233G
test should be performed.
Before undertaking actual checks, take just a few minutes to talk with
a customer who approaches with an ABS complaint. The customer
is a very good source of information on such problems, especially
intermittent ones. Through the talks with the customer, find out what
symptoms are present and under what conditions they occur.
Start your diagnosis by looking for "conventional" problems first.
This is one of the best ways to troubleshoot brake problems on an
ABS equipped vehicle. Also check related Service Bulletins for infor-
mation.

SEF234G

BRC-12
TROUBLE DIAGNOSIS
[ABS]
WORK FLOW
A

BRC

LFIA0197E

BRC-13
TROUBLE DIAGNOSIS
[ABS]
CLARIFY CONCERN
q A customer's description of a vehicle concern may vary depend-
ing on the individual. It is important to clarify the customer's con-
cern.
q Ask the customer about what symptoms are present under what
conditions. Use this information to reproduce the symptom
while driving.
q It is also important to use the diagnosis sheet to understand
what type of trouble the customer is having.

SBR339B

EXAMPLE OF DIAGNOSIS SHEET

WFIA0097E

BRC-14
TROUBLE DIAGNOSIS
[ABS]
Component Parts and Harness Connector Location EFS002Z4

BRC

WFIA0099E

BRC-15
TROUBLE DIAGNOSIS
[ABS]
Schematic EFS002Z5

WFWA0016E

BRC-16
TROUBLE DIAGNOSIS
[ABS]
Wiring Diagram -- ABS -- EFS002Z6

BRC

WFWA0017E

BRC-17
TROUBLE DIAGNOSIS
[ABS]

WFWA0018E

BRC-18
TROUBLE DIAGNOSIS
[ABS]

BRC

WFWA0019E

BRC-19
TROUBLE DIAGNOSIS
[ABS]

WFWA0020E

BRC-20
TROUBLE DIAGNOSIS
[ABS]
Basic Inspection EFS002Z7

BRAKE FLUID LEVEL, FLUID LEAK, AND BRAKE PAD INSPECTION A
1. Check fluid level in the brake fluid reservoir. If fluid level is low, add fluid.
2. Check the brake piping and around the ABS actuator and electric unit (control unit) for leaks. If there is
leaking or seeping fluid, check the following items. B
q If ABS actuator and electric unit (control unit) connection is loose, tighten the piping to the specified
torque and recheck for leaks.
q If there is damage to the connection flare nut or ABS actuator and electric unit (control unit) screw, C
replace the damaged part and recheck for leaks.
q When there is fluid leaking or seeping from a fluid connection, use a clean cloth to wipe off the fluid and
recheck for leaks. If fluid is still seeping out, replace the damaged part. If the fluid is leaking at the ABS D
actuator and electric unit (control unit), replace the ABS actuator and electric unit (control unit) assem-
bly.
CAUTION: E
The ABS actuator and electric unit (control unit) cannot be disassembled and must be replaced
as an assembly.
3. Check the brake pads for excessive wear. BRC
POWER SYSTEM TERMINAL LOOSENESS AND BATTERY INSPECTION
Make sure the battery positive cable, negative cable and ground connection are not loose. In addition, make
sure the battery is sufficiently charged. G
ABS WARNING LAMP INSPECTION
1. Make sure ABS warning lamp turns on for approximately 1 second when the ignition switch is turned ON.
Check CAN communications. If there are no errors with CAN communication system, check combination H
meter. Refer to DI-5, "COMBINATION METERS" .
2. Make sure the lamp turns off approximately 1 second after the ignition switch is turned ON. If the lamp
does not turn off, conduct self-diagnosis. I
3. Make sure ABS warning lamp turns off approximately 2 seconds after the engine is started. If ABS warn-
ing lamp has not turned off 10 seconds after the engine has been started, conduct self-diagnosis of the
ABS actuator and electric unit (control unit). J
4. After conducting the self-diagnosis, be sure to erase the error memory. Refer to BRC-24, "CONSULT-II
Function" .
Warning Lamp and Indicator Timing EFS002Z8
K

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