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BRC

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F BRAKES

B
SECTION
BRAKE CONTROL SYSTEM C

E
CONTENTS
TCS/ABS ABS WARNING LAMP, SLIP INDICATOR LAMP BRC
AND TCS OFF INDICATOR LAMP INSPECTION 20 ...
PRECAUTIONS ......................................................... 3
. Warning Lamp and Indicator Timing ...................... 21 .
Precautions for Supplemental Restraint System Control Unit Input/Output Signal Standard ............ 21 . G
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- REFERENCE VALUE FROM CONSULT-II ........ 21 .
SIONER" ................................................................. 3
. CONSULT-II Function (ABS) ................................. 24 .
Precautions for Brake System ................................. 3 . CONSULT-II BASIC OPERATION PROCEDURE
Precautions When Using CONSULT-II .................... 3 . H
... 24
CHECK POINTS FOR USING CONSULT-II ........ 3 . SELF-DIAGNOSIS ............................................. 25 .
Precautions for Brake Control ................................. 4 . DATA MONITOR ................................................ 27 .
Precautions for CAN System .................................. 4 . ACTIVE TEST .................................................... 29 . I
PREPARATION .......................................................... 5
. TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC
Special Service Tool ................................................ 5
. ITEMS ....................................................................... 31
.
Commercial Service Tools ....................................... 5 . Wheel Sensor System Inspection .......................... 31 . J
SYSTEM DESCRIPTION ........................................... 6 . Engine System Inspection ..................................... 32 .
System Diagram ...................................................... 6
. ABS/TCS Control Unit Inspection .......................... 33 .
ABS Function .......................................................... 6
. Solenoid Valve System Inspection ........................ 33 .
EBD Function .......................................................... 6
. K
Actuator Motor, Motor Relay, and Circuit Inspection 34 ...
TCS Function .......................................................... 6
. Stop Lamp Switch System Inspection ................... 35 .
Wheel Sensors ........................................................ 7
. ABS/TCS Control Unit Power and Ground Systems
Fail-Safe Function ................................................... 7
. Inspection .............................................................. 36
. L
ABS/EBD SYSTEM .............................................. 7 . CAN Communication System Inspection ............... 37 .
TCS SYSTEM ...................................................... 7
. Component Inspection ........................................... 37 .
Hydraulic Circuit Diagram ....................................... 8 . TCS OFF SWITCH ............................................. 37 . M
CAN COMMUNICATION ........................................... 9 . TROUBLE DIAGNOSES FOR SYMPTOMS ........... 38 .
System Description ................................................. 9
. ABS Works Frequently .......................................... 38 .
TROUBLE DIAGNOSIS ........................................... 10 . Unexpected Pedal Action ...................................... 39 .
How to Perform Trouble Diagnoses for Quick and Long Stopping Distance ......................................... 40 .
Accurate Repair .................................................... 10
. ABS Does Not Work .............................................. 40 .
INTRODUCTION ................................................ 10 . Pedal Vibration or ABS Operation Noise ............... 40 .
WORK FLOW ......................................................11. ABS Warning Lamp Does Not Come On When Igni-
CLARIFY CONCERN ......................................... 12 . tion Switch Is Turned On ....................................... 41 .
EXAMPLE OF DIAGNOSIS SHEET .................. 12 . ABS Warning Lamp Stays On When Ignition Switch
Component Parts and Harness Connector Location 13 ... Is Turned On .......................................................... 41
.
Schematic ............................................................. 15
. Vehicle Jerks During TCS Activation ..................... 42 .
Wiring Diagram -- TCS -- .................................... 16 . WHEEL SENSORS .................................................. 43 .
Basic Inspection .................................................... 20
. Removal and Installation ....................................... 43 .
BRAKE FLUID LEVEL, FLUID LEAK, AND SENSOR ROTOR .................................................... 44 .
BRAKE PAD INSPECTION ................................ 20 . Removal and Installation ....................................... 44 .
POWER SYSTEM TERMINAL LOOSENESS
AND BATTERY INSPECTION ........................... 20 .

Revision: July 2006 BRC-1 2006 Quest
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)... 45 REFERENCE VALUE FROM CONSULT-II .........68 .
Removal and Installation ....................................... 45
. CONSULT-II Function (ABS) ..................................71 .
REMOVAL .......................................................... 45
. CONSULT-II BASIC OPERATION PROCEDURE
INSTALLATION ................................................... 46
. ...71
SELF-DIAGNOSIS ..............................................72 .
VDC/TCS/ABS DATA MONITOR .................................................75 .
ACTIVE TEST .....................................................77 .
PRECAUTIONS ........................................................ 47
. TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC
Precautions for Supplemental Restraint System ITEMS .......................................................................79
.
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Wheel Sensor System Inspection ..........................79 .
SIONER" .................................................................. 3
. Engine System Inspection .....................................80 .
Precautions for Brake System ............................... 47 . ABS/TCS/VDC Control Unit Inspection ..................81 .
Precautions When Using CONSULT-II .................. 47 . Steering Angle Sensor System Inspection .............81 .
CHECK POINTS FOR USING CONSULT-II ....... 47 . Yaw Rate/Side/Decel G Sensor System Inspection...82
Precautions for Brake Control ............................... 48 . Solenoid and VDC Change-Over Valve System
Precautions for CAN System ................................. 48 . Inspection ...............................................................84
.
PREPARATION ........................................................ 50
. Actuator Motor, Motor Relay, and Circuit Inspection...85
Special Service Tool .............................................. 50
. Stop Lamp Switch System Inspection ....................86 .
Commercial Service Tools ..................................... 50 . ABS/TCS/VDC Control Unit Power and Ground
SYSTEM DESCRIPTION ......................................... 51 . Systems Inspection ................................................87 .
System Components ............................................. 51 . Brake Fluid Level Switch System Inspection .........88 .
ABS Function ......................................................... 51
. CAN Communication System Inspection ...............89 .
EBD Function ........................................................ 51
. Component Inspection ...........................................89 .
TCS Function ......................................................... 52
. VDC OFF SWITCH .............................................89 .
VDC Function ........................................................ 52
. TROUBLE DIAGNOSES FOR SYMPTOMS ............90 .
Wheel Sensors ...................................................... 53
. ABS Works Frequently ...........................................90 .
Fail-Safe Function ................................................. 53
. Unexpected Pedal Action .......................................91 .
ABS/EBD SYSTEM ............................................ 53 . Long Stopping Distance .........................................92 .
VDC/TCS SYSTEM ............................................ 53 . ABS Does Not Work ..............................................92 .
Hydraulic Circuit Diagram ...................................... 54 . Pedal Vibration or ABS Operation Noise ...............92 .
CAN COMMUNICATION .......................................... 55 . ABS Warning Lamp Does Not Come On When Igni-
System Description ................................................ 55
. tion Switch Is Turned On ........................................93 .
TROUBLE DIAGNOSIS ........................................... 56 . ABS Warning Lamp Stays On When Ignition Switch
How to Perform Trouble Diagnoses for Quick and Is Turned On ..........................................................93 .
Accurate Repair ..................................................... 56
. Vehicle Jerks During TCS/VDC Activation .............94 .
INTRODUCTION ................................................ 56 . ON-VEHICLE SERVICE ...........................................95 .
WORK FLOW ..................................................... 57 . Adjustment of Steering Angle Sensor Neutral Posi-
CLARIFY CONCERN ......................................... 58 . tion .........................................................................95
.
EXAMPLE OF DIAGNOSIS SHEET ................... 58 . WHEEL SENSORS ..................................................96 .
Component Parts and Harness Connector Location 59 ... Removal and Installation ........................................96 .
Schematic .............................................................. 61
. SENSOR ROTOR .....................................................97 .
Wiring Diagram -- VDC -- .................................... 62 . Removal and Installation ........................................97 .
Basic Inspection .................................................... 67
. ACTUATOR AND ELECTRIC UNIT (ASSEMBLY) ...98
BRAKE FLUID LEVEL, FLUID LEAK, AND Removal and Installation ........................................98 .
BRAKE PAD INSPECTION ................................ 67 . REMOVAL ...........................................................98 .
POWER SYSTEM TERMINAL LOOSENESS INSTALLATION ...................................................99 .
AND BATTERY INSPECTION ............................ 67 . STEERING ANGLE SENSOR ................................ 100 .
ABS WARNING LAMP, SLIP INDICATOR LAMP Removal and Installation ...................................... 100 .
AND VDC OFF INDICATOR LAMP INSPECTION 67 ... G SENSOR ............................................................. 101 .
Warning Lamp and Indicator Timing ...................... 68 . Removal and Installation ...................................... 101 .
Control Unit Input/Output Signal Standard ............. 68 . REMOVAL ......................................................... 101 .
INSTALLATION ................................................. 101 .

Revision: July 2006 BRC-2 2006 Quest
PRECAUTIONS
[TCS/ABS]
PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EFS0062Y

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
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 C
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: D
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. E
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. BRC
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.
G
Precautions for Brake System EFS005ZO

CAUTION:
q Refer to MA-9, "RECOMMENDED FLUIDS AND LUBRICANTS" for recommended brake fluid. H
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. I
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
J
system.
q Use flare nut wrench when removing and installing brake
tube.
K
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 L
the ABS actuator and electric unit (control unit) or the bat-
tery terminal before performing the work.
q Always tighten brake lines to specified torque when install- M
ing.
SBR686C
q Burnish the brake contact surfaces after refinishing or
replacing rotors, after replacing pads, or if a soft pedal occurs at very low mileage.
Refer to BR-33, "Brake Burnishing" (front disc brakes) or BR-39, "Brake Burnishing" (rear disc
brakes).
WARNING:
q Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.
Precautions When Using CONSULT-II EFS005ZP

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 carries 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.

Revision: July 2006 BRC-3 2006 Quest
PRECAUTIONS
[TCS/ABS]
q If NO, GO TO 5.
2. Is there any indication other than indications relating to CAN communication system in the self-diagnosis
results?
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.
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-24, "CAN COMMUNICATION" .
Precautions for Brake Control EFS005ZQ

q During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
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.
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-
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.
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
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.
Precautions for CAN System EFS005ZR

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.
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.
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 circuit
is bypassed, characteristics of twisted wire will be lost.)

PKIA0307E

Revision: July 2006 BRC-4 2006 Quest
PREPARATION
[TCS/ABS]
PREPARATION PFP:00002
A
Special Service Tool EFS005ZT

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number Description B
(Kent-Moore No.)
Tool name
(J-45741) Checking operation of ABS active wheel sen- C
ABS active wheel sensor tester sors

WFIA0101E
E
Commercial Service Tools EFS005ZU

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

S-NT360
H

Revision: July 2006 BRC-5 2006 Quest
SYSTEM DESCRIPTION
[TCS/ABS]
SYSTEM DESCRIPTION PFP:00000

System Diagram EFS005ZV

WFIA0418E

ABS Function EFS005ZW

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 EFS005ZX

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.
TCS Function EFS005ZY

q Spinning of the drive wheels is detected by the ABS/TCS control unit using inputs from the wheel speed
sensors. If wheel spin occurs, engine fuel cut is conducted while the throttle value is restricted to reduce
the engine torque and decrease the amount of wheel spin. In addition, the throttle opening is controlled to
achieve the optimum engine torque.
q Depending on road condition, the vehicle may have a sluggish feel. This is normal, because optimum trac-
tion has the highest priority during TCS operation.

Revision: July 2006 BRC-6 2006 Quest
SYSTEM DESCRIPTION
[TCS/ABS]
q TCS may be activated during sudden vehicle acceleration, wide open throttle acceleration, sudden trans-
mission shifts or when the vehicle is driven on a road with a varying surface friction coefficient. A
q The SLIP indicator lamp flashes to inform the driver of TCS operation.
Wheel Sensors EFS005ZZ
B
Each wheel sensor unit consists of a wheel hub with a series of inter-
nal magnets and a sensor element. The wheel sensors are installed
on the inner side of the wheel knuckles. As the wheel rotates, the
C
sensor generates a square-wave signal. The frequency increases as
the wheel speed increases.

E
WFIA0033E

Fail-Safe Function EFS00600
BRC
CAUTION:
If the Fail-Safe function is activated, perform the Self Diagnosis for ABS/TCS system.
ABS/EBD SYSTEM G
In case of an electrical malfunction with the ABS, the ABS warning lamp and SLIP indicator lamp will turn on.
In case of an electrical malfunction with the EBD system, the BRAKE warning lamp, ABS warning lamp and
SLIP indicator lamp will turn on. H
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
vehicles without ABS/TCS system.
I
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/TCS and EBD system.
TCS SYSTEM J
In case of TCS system malfunction, the SLIP indicator lamp is turned on and the condition of the vehicle is the
same as the condition of vehicles without TCS system. In case of an electrical malfunction with the TCS sys-
tem, the ABS control continues to operate normally without TCS control. K

Revision: July 2006 BRC-7 2006 Quest
SYSTEM DESCRIPTION
[TCS/ABS]
Hydraulic Circuit Diagram EFS00601

WFIA0280E

Revision: July 2006 BRC-8 2006 Quest
CAN COMMUNICATION
[TCS/ABS]
CAN COMMUNICATION PFP:23710
A
System Description EFS00602

Refer to LAN-24, "CAN COMMUNICATION" .
B

BRC

Revision: July 2006 BRC-9 2006 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]
TROUBLE DIAGNOSIS PFP:00000

How to Perform Trouble Diagnoses for Quick and Accurate Repair EFS00603

INTRODUCTION
The ABS/TCS system has an electronic control unit to control major
functions. The control unit accepts input signals from sensors and
controls actuator operation. It is also important to check for conven-
tional 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/TCS complaint. The cus-
tomer is a very good source of information on such problems, espe-
cially 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/
TCS equipped vehicle. Also check related Service Bulletins for infor-
mation.

SEF234G

Revision: July 2006 BRC-10 2006 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]
WORK FLOW
A

BRC

WFIA0414E

Revision: July 2006 BRC-11 2006 Quest
TROUBLE DIAGNOSIS
[TCS/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

Revision: July 2006 BRC-12 2006 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]
Component Parts and Harness Connector Location EFS00604

BRC

WFIA0417E

Revision: July 2006 BRC-13 2006 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]
1. Rear wheel sensor RH B122 2. ABS actuator and electric unit (con- 3. Front wheel sensor RH E117
trol unit) E125 (engine removed for
clarity)
4. Front wheel sensor LH E18 5. TCS OFF switch M6 6. Combination meter M23
7. Rear wheel sensor LH B123

Revision: July 2006 BRC-14 2006 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]
Schematic EFS00605

BRC

WFWA0269E

Revision: July 2006 BRC-15 2006 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]
Wiring Diagram -- TCS -- EFS00606

WFWA0270E

Revision: July 2006 BRC-16 2006 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]

BRC

WFWA0271E

Revision: July 2006 BRC-17 2006 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]

WFWA0272E

Revision: July 2006 BRC-18 2006 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]

BRC

WFWA0273E

Revision: July 2006 BRC-19 2006 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]
Basic Inspection EFS00607

BRAKE FLUID LEVEL, FLUID LEAK, AND BRAKE PAD INSPECTION
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.
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) threads,
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
actuator and electric unit (control unit), replace the ABS actuator and electric unit (control unit) assem-
bly.
CAUTION:
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.
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.
ABS WARNING LAMP, SLIP INDICATOR LAMP AND TCS OFF INDICATOR LAMP INSPECTION
1. Make sure ABS warning lamp, SLIP indicator lamp and TCS OFF indicator lamp (when TCS OFF switch
is off), turn on for approximately 2 seconds when the ignition switch is turned ON. If they do not, check the
TCS OFF indicator lamp and the TCS OFF switch. Refer to BRC-37, "TCS OFF SWITCH" . Check CAN
communications. If there are no errors with the TCS OFF switch or the CAN communication system,
check combination meter. Refer to DI-5, "COMBINATION METERS" .
2. Make sure the lamps turn off approximately 2 seconds after the ignition switch is turned ON. If the lamp
does not turn off, conduct self-diagnosis.
3. With the engine running, make sure the TCS OFF indicator lamp turns on and off when the TCS OFF
switch is turned on and off. If the indicator lamp status does not correspond to switch operation, check the
TCS OFF switch. Refer to BRC-37, "TCS OFF SWITCH" .
4. Make sure ABS warning lamp, SLIP indicator lamp and TCS OFF indicator lamp turn off approximately 2
seconds after the engine is started. If ABS warning lamp, SLIP indicator lamp or TCS OFF indicator lamp
have not turned off 10 seconds after the engine has been started, conduct self-diagnosis of the ABS actu-
ator and electric unit (control unit).
5. After conducting the self-diagnosis, be sure to erase the error memory. Refer to BRC-24, "CONSULT-II
Function (ABS)" .

Revision: July 2006 BRC-20 2006 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]
Warning Lamp and Indicator Timing EFS00608

A
ABS TCS OFF SLIP
Condition Remarks
warning lamp indicator lamp indicator lamp
When the ignition switch is OFF

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