Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Quest 2004-2009 Approved Nissan Quest 2004 BRC
<< Back |
HomeMost service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download
Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing.
If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.
Image preview - the first page of the document
>> Download BRC documenatation <<Text preview - extract from the documentF BRAKES
A
B
SECTION
BRAKE CONTROL SYSTEM C
D
E
CONTENTS
TCS/ABS AND BATTERY INSPECTION ............................ 20 . BRC
ABS WARNING LAMP, SLIP INDICATOR LAMP
PRECAUTIONS ......................................................... 3
. AND TCS OFF INDICATOR LAMP INSPECTION 20 ...
Precautions for Supplemental Restraint System Warning Lamp and Indicator Timing ...................... 21 . G
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Control Unit Input/Output Signal Standard ............ 21 .
SIONER" ................................................................. 3
. REFERENCE VALUE FROM CONSULT-II ........ 21 .
Precautions for Brake System ................................. 3 . CONSULT-II Function (ABS) ................................. 23 .
Precautions When Using CONSULT-II .................... 3 . H
CONSULT-II BASIC OPERATION PROCEDURE
CHECK POINTS FOR USING CONSULT-II ........ 3 . ... 23
Precautions for Brake Control ................................. 4 . SELF-DIAGNOSIS ............................................. 24 .
Precautions for CAN System .................................. 4 . DATA MONITOR ................................................ 26 . I
Wiring Diagrams and Trouble Diagnosis ................. 5 . ACTIVE TEST .................................................... 28 .
PREPARATION .......................................................... 6
. TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC
Special Service Tool ................................................ 6
. ITEMS ....................................................................... 30
. J
Commercial Service Tools ....................................... 6 . Wheel Sensor System Inspection .......................... 30 .
SYSTEM DESCRIPTION ........................................... 7 . Engine System Inspection ..................................... 31 .
System Diagram ...................................................... 7
. ABS/TCS Control Unit Inspection .......................... 32 .
ABS Function .......................................................... 7
. K
Solenoid Valve System Inspection ........................ 32 .
EBD Function .......................................................... 7
. Actuator Motor, Motor Relay, and Circuit Inspection 33 ...
TCS Function .......................................................... 7
. Stop Lamp Switch System Inspection ................... 34 .
Wheel Sensors ........................................................ 8
. ABS/TCS Control Unit Power and Ground Systems L
Fail-Safe Function ................................................... 8
. Inspection .............................................................. 35
.
ABS/EBD SYSTEM .............................................. 8 . CAN Communication System Inspection ............... 36 .
TCS SYSTEM ...................................................... 8
. Component Inspection ........................................... 36 . M
Hydraulic Circuit Diagram ....................................... 9 . TCS OFF SWITCH ............................................. 36 .
CAN COMMUNICATION ......................................... 10 . TROUBLE DIAGNOSES FOR SYMPTOMS ........... 37 .
System Description ............................................... 10
. ABS Works Frequently .......................................... 37 .
TROUBLE DIAGNOSIS ............................................11 . Unexpected Pedal Action ...................................... 38 .
How to Perform Trouble Diagnoses for Quick and Long Stopping Distance ......................................... 39 .
Accurate Repair .....................................................11
. ABS Does Not Work .............................................. 39 .
INTRODUCTION .................................................11 . Pedal Vibration or ABS Operation Noise ............... 39 .
WORK FLOW ..................................................... 12. ABS Warning Lamp Does Not Come On When Igni-
CLARIFY CONCERN ......................................... 13 . tion Switch Is Turned On ....................................... 40 .
EXAMPLE OF DIAGNOSIS SHEET .................. 13 . ABS Warning Lamp Stays On When Ignition Switch
Component Parts and Harness Connector Location 14 ... Is Turned On .......................................................... 40
.
Schematic ............................................................. 15
. Vehicle Jerks During TCS Activation ..................... 41 .
Wiring Diagram -- TCS -- .................................... 16 . WHEEL SENSORS .................................................. 42 .
Basic Inspection .................................................... 20
. Removal and Installation ....................................... 42 .
BRAKE FLUID LEVEL, FLUID LEAK, AND SENSOR ROTOR .................................................... 43 .
BRAKE PAD INSPECTION ................................ 20 . Removal and Installation ....................................... 43 .
POWER SYSTEM TERMINAL LOOSENESS
Revision: January 2005 BRC-1 2004 Quest
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)... 44 REFERENCE VALUE FROM CONSULT-II .........66 .
Removal and Installation ....................................... 44
. CONSULT-II Function (ABS) ..................................69 .
REMOVAL .......................................................... 44
. CONSULT-II BASIC OPERATION PROCEDURE
INSTALLATION ................................................... 45
. ...69
SELF-DIAGNOSIS ..............................................70 .
VDC/TCS/ABS DATA MONITOR .................................................73 .
ACTIVE TEST .....................................................75 .
PRECAUTIONS ........................................................ 46
. TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC
Precautions for Supplemental Restraint System ITEMS .......................................................................78
.
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Wheel Sensor System Inspection ..........................78 .
SIONER" ................................................................ 46
. Engine System Inspection .....................................79 .
Precautions for Brake System ............................... 46 . ABS/TCS/VDC Control Unit Inspection ..................80 .
Precautions When Using CONSULT-II .................. 46 . Steering Angle Sensor System Inspection .............80 .
CHECK POINTS FOR USING CONSULT-II ....... 46 . Yaw Rate/Side/Decel G Sensor System Inspection...81
Precautions for Brake Control ............................... 47 . Solenoid and VDC Change-Over Valve System
Precautions for CAN System ................................. 47 . Inspection ...............................................................83
.
Wiring Diagrams and Trouble Diagnosis ............... 48 . Actuator Motor, Motor Relay, and Circuit Inspection...84
PREPARATION ........................................................ 49
. Stop Lamp Switch System Inspection ....................85 .
Special Service Tool .............................................. 49
. ABS/TCS/VDC Control Unit Power and Ground
Commercial Service Tools ..................................... 49 . Systems Inspection ................................................86 .
SYSTEM DESCRIPTION ......................................... 50 . Brake Fluid Level Switch System Inspection .........87 .
System Components ............................................. 50 . CAN Communication System Inspection ...............88 .
ABS Function ......................................................... 50
. Component Inspection ...........................................88 .
EBD Function ........................................................ 50
. VDC OFF SWITCH .............................................88 .
TCS Function ......................................................... 51
. TROUBLE DIAGNOSES FOR SYMPTOMS ............89 .
VDC Function ........................................................ 51
. ABS Works Frequently ...........................................89 .
Wheel Sensors ...................................................... 52
. Unexpected Pedal Action .......................................90 .
Fail-Safe Function ................................................. 52
. Long Stopping Distance .........................................91 .
ABS/EBD SYSTEM ............................................ 52 . ABS Does Not Work ..............................................91 .
VDC/TCS SYSTEM ............................................ 52 . Pedal Vibration or ABS Operation Noise ...............91 .
Hydraulic Circuit Diagram ...................................... 53 . ABS Warning Lamp Does Not Come On When Igni-
CAN COMMUNICATION .......................................... 54 . tion Switch Is Turned On ........................................92 .
System Description ................................................ 54
. ABS Warning Lamp Stays On When Ignition Switch
TROUBLE DIAGNOSIS ........................................... 55 . Is Turned On ..........................................................92 .
How to Perform Trouble Diagnoses for Quick and Vehicle Jerks During TCS/VDC Activation .............93 .
Accurate Repair ..................................................... 55
. ON-VEHICLE SERVICE ...........................................94 .
INTRODUCTION ................................................ 55 . Adjustment of Steering Angle Sensor Neutral Posi-
WORK FLOW ..................................................... 56 . tion .........................................................................94
.
CLARIFY CONCERN ......................................... 57 . WHEEL SENSORS ..................................................95 .
EXAMPLE OF DIAGNOSIS SHEET ................... 57 . Removal and Installation ........................................95 .
Component Parts and Harness Connector Location 58 ... SENSOR ROTOR .....................................................96 .
Schematic .............................................................. 59
. Removal and Installation ........................................96 .
Wiring Diagram -- VDC -- .................................... 60 . ACTUATOR AND ELECTRIC UNIT (ASSEMBLY) ...97
Basic Inspection .................................................... 65
. Removal and Installation ........................................97 .
BRAKE FLUID LEVEL, FLUID LEAK, AND REMOVAL ...........................................................97 .
BRAKE PAD INSPECTION ................................ 65 . INSTALLATION ...................................................98 .
POWER SYSTEM TERMINAL LOOSENESS STEERING ANGLE SENSOR ..................................99 .
AND BATTERY INSPECTION ............................ 65 . Removal and Installation ........................................99 .
ABS WARNING LAMP, SLIP INDICATOR LAMP G SENSOR ............................................................. 100 .
AND VDC OFF INDICATOR LAMP INSPECTION 65 ... Removal and Installation ...................................... 100 .
Warning Lamp and Indicator Timing ...................... 66 . REMOVAL ......................................................... 100 .
Control Unit Input/Output Signal Standard ............. 66 . INSTALLATION ................................................. 100 .
Revision: January 2005 BRC-2 2004 Quest
PRECAUTIONS
[TCS/ABS]
PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EFS005U0
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 EFS0034M
CAUTION:
q Refer to MA-10, "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-31, "Brake Burnishing" (front disc brakes) or BR-37, "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 EFS0034N
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.
Revision: January 2005 BRC-3 2004 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-6, "CAN COMMUNICATION" .
Precautions for Brake Control EFS0034O
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 EFS0034P
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: January 2005 BRC-4 2004 Quest
PRECAUTIONS
[TCS/ABS]
Wiring Diagrams and Trouble Diagnosis EFS0034Q
A
When you read wiring diagrams, refer to the following:
q GI-12, "How to Read Wiring Diagrams".
q PG-4, "POWER SUPPLY ROUTING CIRCUIT". B
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". C
D
E
BRC
G
H
I
J
K
L
M
Revision: January 2005 BRC-5 2004 Quest
PREPARATION
[TCS/ABS]
PREPARATION PFP:00002
Special Service Tool EFS0034R
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number Description
(Kent-Moore No.)
Tool name
(J-45741) Checking operation of ABS active wheel sen-
ABS active wheel sensor tester sors
WFIA0101E
Commercial Service Tools EFS0034S
Tool name Description
1. Flare nut crowfoot Removing and installing brake piping
2. Torque wrench a: 10mm (0.39 in)/12mm (0.47 in)
S-NT360
Revision: January 2005 BRC-6 2004 Quest
SYSTEM DESCRIPTION
[TCS/ABS]
SYSTEM DESCRIPTION PFP:00000
A
System Diagram EFS0034T
B
C
D
E
BRC
WFIA0118E
G
ABS Function EFS0034U
q The Anti-Lock Brake System detects wheel revolution while braking and improves handling stability during H
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 I
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 J
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. K
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.
L
EBD Function EFS0034V
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
M
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 EFS0034W
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: January 2005 BRC-7 2004 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.
q The SLIP indicator lamp flashes to inform the driver of TCS operation.
Wheel Sensors EFS0034X
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
sensor generates a square-wave signal. The frequency increases as
the wheel speed increases.
WFIA0033E
Fail-Safe Function EFS0034Y
CAUTION:
If the Fail-Safe function is activated, perform the Self Diagnosis for ABS/TCS system.
ABS/EBD SYSTEM
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.
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.
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
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.
Revision: January 2005 BRC-8 2004 Quest
SYSTEM DESCRIPTION
[TCS/ABS]
Hydraulic Circuit Diagram EFS0034Z
A
B
C
D
E
BRC
G
H
I
J
WFIA0280E
K
L
M
Revision: January 2005 BRC-9 2004 Quest
CAN COMMUNICATION
[TCS/ABS]
CAN COMMUNICATION PFP:23710
System Description EFS00350
Refer to LAN-6, "CAN COMMUNICATION" .
Revision: January 2005 BRC-10 2004 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]
TROUBLE DIAGNOSIS PFP:00000
A
How to Perform Trouble Diagnoses for Quick and Accurate Repair EFS00351
INTRODUCTION
The ABS/TCS system has an electronic control unit to control major B
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. C
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, D
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
test should be performed.
SEF233G
E
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- BRC
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/ G
TCS equipped vehicle. Also check related Service Bulletins for infor-
mation.
H
SEF234G
I
J
K
L
M
Revision: January 2005 BRC-11 2004 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]
WORK FLOW
WFIA0395E
Revision: January 2005 BRC-12 2004 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]
CLARIFY CONCERN
q A customer's description of a vehicle concern may vary depend- A
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 B
conditions. Use this information to reproduce the symptom while
driving.
q It is also important to use the diagnosis sheet to understand C
what type of trouble the customer is having.
SBR339B
D
EXAMPLE OF DIAGNOSIS SHEET
E
BRC
G
H
I
J
K
L
M
WFIA0097E
Revision: January 2005 BRC-13 2004 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]
Component Parts and Harness Connector Location EFS00352
WFIA0152E
Revision: January 2005 BRC-14 2004 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]
Schematic EFS00353
A
B
C
D
E
BRC
G
H
I
J
K
L
M
WFWA0099E
Revision: January 2005 BRC-15 2004 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]
Wiring Diagram -- TCS -- EFS00354
WFWA0047E
Revision: January 2005 BRC-16 2004 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]
A
B
C
D
E
BRC
G
H
I
J
K
L
M
WFWA0100E
Revision: January 2005 BRC-17 2004 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]
WFWA0049E
Revision: January 2005 BRC-18 2004 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]
A
B
C
D
E
BRC
G
H
I
J
K
L
M
WFWA0050E
Revision: January 2005 BRC-19 2004 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]
Basic Inspection EFS00355
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-36, "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-36, "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-23, "CONSULT-II
Function (ABS)" .
Revision: January 2005 BRC-20 2004 Quest
TROUBLE DIAGNOSIS
[TCS/ABS]
Warning Lamp and Indicator Timing EFS00356
A
ABS TCS OFF SLIP
Condition Remarks
warning lamp indicator lamp indicator lamp
When the ignition switch is OFF
◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo