wheel NISSAN TEANA 2003 Owner's Manual

BRC-1
BRAKE CONTROL SYSTEM
F BRAKES
CONTENTS
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SECTION BRC
A
B
BRC

BRAKE CONTROL SYSTEM
ABS
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for Brake System .................................. 3
Precautions for Brake Control .................................. 3
PREPARATION ........................................................... 4
Special Service Tools ............................................... 4
SYSTEM DESCRIPTION ............................................ 5
System Diagram ....................................................... 5
Functions .................................................................. 5
ABS ....................................................................... 5
EBD ....................................................................... 6
Fail-Safe Function .................................................... 6
ABS, EBD SYSTEM .............................................. 6
Hydraulic Circuit Diagram ........................................ 6
CAN Communication ................................................ 7
SYSTEM DESCRIPTION ...................................... 7
TROUBLE DIAGNOSIS .............................................. 8
How to Perform Trouble Diagnosis For Quick and
Accurate Repair ....................................................... 8
INTRODUCTION ................................................... 8
DIAGNOSIS FLOW CHART ................................. 9
ASKING COMPLAINTS ...................................... 10
EXAMPLE OF DIAGNOSIS SHEET ................... 10
Component Parts Location ...................................... 11
Schematic .............................................................. 12
Wiring Diagram — ABS — ..................................... 13
Control Unit Input/Output Signal Specifications ..... 16
REFERENCE VALUE FROM CONSULT-II ......... 16
CONSULT-II Functions (ABS) ................................ 17
CONSULT-II MAIN FUNCTION ........................... 17
CONSULT-II SETTING PROCEDURE ................ 17
Self-Diagnosis ........................................................ 17
DESCRIPTION .................................................... 17
OPERATION PROCEDURE ............................... 17
ERASE MEMORY ............................................... 17
DISPLAY ITEM LIST ........................................... 18Data Monitor ........................................................... 19
OPERATION PROCEDURE ................................ 19
DISPLAY ITEM LIST ........................................... 19
Active Test .............................................................. 20
OPERATION PROCEDURE ................................ 20
TEST ITEM .......................................................... 21
For Fast and Accurate Diagnosis ........................... 22
PRECAUTIONS FOR DIAGNOSIS ..................... 22
Basic Inspection ..................................................... 22
BRAKE FLUID LEVEL, LEAKAGE AND BRAKE
PAD ..................................................................... 22
POWER SUPPLY CIRCUIT TERMINAL LOOSE-
NESS AND BATTERY ......................................... 22
INSPECTION OF ABS WARNING LAMP AND
BRAKE WARNING LAMP ................................... 23
TROUBLE DIAGNOSIS FOR SYSTEM .................... 24
Wheel Sensor System ............................................ 24
ABS Actuator and Electric Unit (Control Unit) 1 ..... 26
ABS Actuator and Electric Unit (Control Unit) Power
Supply and Ground Circuit ..................................... 26
ABS Actuator Relay or ABS Motor Relay Power Sys-
tem .......................................................................... 28
CAN Communication System ................................. 29
TROUBLE DIAGNOSIS FOR SYMPTOMS .............. 30
Excessive ABS Function Operation Frequency ...... 30
Unexpected Pedal Action ....................................... 30
Longer Stopping Distance ...................................... 31
ABS Function Does Not Operate ............................ 31
Pedal Vibration and ABS Operation Sound Occurs ... 31
WHEEL SENSORS ................................................... 33
Removal and Installation ........................................ 33
COMPONENTS ................................................... 33
REMOVAL ........................................................... 33
INSTALLATION ................................................... 33
SENSOR ROTOR ..................................................... 34
Removal and Installation ........................................ 34
FRONT ................................................................ 34
REAR .................................................................. 34

BRC-2 ACTUATOR AND ELECTRIC UNIT (ASSEMBLY) ... 35
Removal and Installation ........................................ 35
COMPONENTS ................................................... 35
REMOVAL ........................................................... 36
INSTALLATION .................................................... 36
VDC/TCS/ABS
PRECAUTIONS ......................................................... 37
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................. 37
Precautions for Brake System ................................ 37
Precautions for Brake Control ................................ 37
PREPARATION ......................................................... 39
Special Service Tools ............................................. 39
ON-VEHICLE SERVICE ............................................ 40
Adjustment of Steering Angle Sensor Neutral Posi-
tion .......................................................................... 40
OPERATION PROCEDURE ................................ 40
SYSTEM DESCRIPTION .......................................... 41
System Diagram ..................................................... 41
Functions ................................................................ 41
VDC ..................................................................... 41
TCS ..................................................................... 41
ABS ..................................................................... 42
EBD ..................................................................... 42
Fail-Safe Function .................................................. 42
VDC/TCS SYSTEM ............................................. 42
ABS, EBD SYSTEM ............................................ 42
Hydraulic Circuit Diagram ....................................... 43
CAN Communication .............................................. 43
SYSTEM DESCRIPTION .................................... 43
TROUBLE DIAGNOSIS ............................................ 44
How to Perform Trouble Diagnosis Quick and Accu-
rate Repair .............................................................. 44
INTRODUCTION ................................................. 44
DIAGNOSIS FLOW CHART ................................ 45
ASKING COMPLAINTS ....................................... 46
EXAMPLE OF DIAGNOSIS SHEET .................... 46
Component Parts Location ..................................... 47
Schematic ............................................................... 48
Wiring Diagram — VDC — ..................................... 49
Control Unit Input/Output Signal Specifications ...... 55
REFERENCE VALUE FROM CONSULT-II ......... 55
CONSULT-II Functions ........................................... 57
CONSULT-II MAIN FUNCTION ........................... 57
CONSULT-II SETTING PROCEDURE ................ 57
Self-Diagnosis ........................................................ 58
DESCRIPTION .................................................... 58
OPERATION PROCEDURE ................................ 58
ERASE MEMORY ............................................... 58
DISPLAY ITEM LIST ........................................... 59
Data Monitor ........................................................... 61
OPERATION PROCEDURE ................................ 61
DISPLAY ITEM LIST ........................................... 61
Active Test .............................................................. 63
OPERATION PROCEDURE ................................ 63TEST ITEM .......................................................... 64
For Fast and Accurate Diagnosis ............................ 65
PRECAUTIONS FOR DIAGNOSIS ..................... 65
Basic Inspection ...................................................... 66
BRAKE FLUID LEVEL, LEAKAGE AND BRAKE
PAD ...................................................................... 66
POWER SUPPLY CIRCUIT TERMINAL LOOSE-
NESS AND BATTERY ......................................... 66
INSPECTION OF ABS WARNING LAMP, BRAKE
WARNING LAMP, VDC OFF INDICATOR LAMP,
AND SLIP INDICATOR LAMP ............................. 66
TROUBLE DIAGNOSIS FOR SYSTEM .................... 68
Wheel Sensor System ............................................ 68
Engine System ........................................................ 70
ABS Actuator and Electric Unit (Control Unit) 1 ...... 70
Steering Angle Sensor System ............................... 71
Yaw Rate/Side/Decel G Sensor System ................. 72
Pump Motor, Motor Relay System .......................... 74
Park/Neutral Position (PNP) Switch Circuit ............. 75
Solenoid and VDC Change-Over Valve, Actuator
Relay System .......................................................... 76
Stop Lamp Switch System ...................................... 77
ABS Actuator and Electric Unit (Control Unit) Power
Supply and Ground System .................................... 78
Brake Fluid Level Switch System ............................ 80
CAN Communication System ................................. 81
Component Parts Inspection ................................... 81
VDC OFF SWITCH .............................................. 81
TROUBLE DIAGNOSIS FOR SYMPTOMS .............. 82
Excessive ABS Function Operation Frequently ...... 82
Unexpected Pedal Reaction ................................... 83
Longer Stopping Distance ....................................... 83
ABS Function Does Not Operate ............................ 84
Pedal Vibration and ABS Operation Sound Occurs ... 84
Vehicle Jerks During VDC/TCS/ABS Control .......... 85
WHEEL SENSORS ................................................... 86
Removal and Installation ......................................... 86
COMPONENTS ................................................... 86
REMOVAL ............................................................ 86
INSTALLATION .................................................... 86
SENSOR ROTOR ...................................................... 87
Removal and Installation ......................................... 87
FRONT ................................................................. 87
REAR ................................................................... 87
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY) ... 88
Removal and Installation ......................................... 88
COMPONENTS ................................................... 88
REMOVAL ............................................................ 89
INSTALLATION .................................................... 89
G SENSOR ................................................................ 90
Removal and Installation ......................................... 90
REMOVAL ............................................................ 90
INSTALLATION .................................................... 90
STEERING ANGLE SENSOR ................................... 91
Removal and Installation ......................................... 91
REMOVAL ............................................................ 91
INSTALLATION .................................................... 91

SYSTEM DESCRIPTION
BRC-5
[ABS]
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BRC

SYSTEM DESCRIPTIONPFP:00000
System DiagramBFS000CO
FunctionsBFS000CP
ABS

The Anti-Lock Brake System is a function that detects wheel revolution while braking, and it improves
handling stability during sudden braking by electrically preventing 4 wheel lock. Maneuverability is also
improved for avoiding obstacles.

If the electrical system breaks down, then the fail-safe function is activated, ABS becomes inoperative,
and ABS warning lamp turns on.

Electrical system diagnosis by CONSULT-II is available.

During ABS operation, brake pedal lightly vibrates and a mechanical noise may be heard. This is normal.

Just after starting vehicle after ignition switch ON, brake pedal may vibrate or motor operating noise may
be heard from engine room. This is a normal status of operation check.

Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
SFIA3328E

BRC-6
[ABS]
SYSTEM DESCRIPTION

EBD

Electronic Brake Distribution is a function that detects subtle slippages between front and rear wheels dur-
ing braking, and it improves handling stability by electronically controlling Brake Fluid Pressure which
results in reduced rear wheel slippage.

In case of electrical system break down, the fail-safe function is activated, EBD and ABS becomes inoper-
ative, and ABS warning lamp and brake warning lamp are turned on.

Electrical system diagnosis by CONSULT-II is available.

During EBD operation, brake pedal lightly vibrates and a mechanical noise may be heard. This is normal.

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

Stopping distance may be longer than that of vehicles without EBD when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
Fail-Safe FunctionBFS000CR
ABS, EBD SYSTEM
In case of electrical malfunctions with ABS, ABS warning lamp will turn on. In case of electrical malfunctions
with EBD, brake warning lamp and ABS warning lamp will turn on. Simultaneously, ABS become one of follow-
ing conditions of the fail-safe function.

For ABS malfunction, only EBD is activated and condition of vehicle is same condition of vehicles without
ABS system.
NOTE:
ABS self-diagnosis sound may be heard. That is a normal condition because a self-diagnosis for Ignition
switch ON and The first starting are being performed.

For EBD malfunction, EBD and ABS become inoperative, and condition of vehicle is same as condition of
vehicles without ABS, EBD system.
Hydraulic Circuit DiagramBFS000CS
SFIA2082E

BRC-16
[ABS]
TROUBLE DIAGNOSIS

Control Unit Input/Output Signal SpecificationsBFS000CY
REFERENCE VALUE FROM CONSULT-II
CAUTION:
The monitor displays the control unit calculation data. The normal values will be displayed even that in
the event the output circuit (harness) is open or shorted.
Note 1: Confirm tire pressure is the standard value.
Note 2: Brake warning lamp can be used for EBD warning lamp.
Note 3: ON/OFF timing of ABS warning lamp
ON: For a while after ignition switch is turned ON, or when a malfunction is detected.
OFF: In a while after the warning lamp is ON (when the system is in normal operation). Monitor item Display itemDATA MONITOR
ConditionReference values for
normal operation
WHEEL SENSORVehicle speed calculated using sig-
nals from all four wheel sensorsVehicle stopped 0 [km/h (MPH)]
Vehicle running (Note 1)Almost in accordance
with speedometer dis-
play (within ± 10 %)
IN ABS S/V
OUT ABS S/VOperation condition of all solenoid
valvesWhen actuator (solenoid) operates or
during fail-safeON
When actuator relay operates and the
actuator (solenoid) does not operateOFF
EBD WARN LAMP
(Note 2)Brake warning lamp ON/OFF condi-
tionWhen brake warning lamp is ON ON
When brake warning lamp is OFF OFF
STOP LAMP SW Brake pedal operation conditionBrake pedal depressed ON
Brake pedal not depressed OFF
MOTOR RELAYMotor and motor relay operation con-
ditionWhen motor relay and motor are
operatingON
When motor relay and motor are not
operatingOFF
ACTUATOR RLY Actuator relay operation conditionActuator relay activated ON
Actuator relay not activated OFF
ABS WARN LAMPABS warning lamp ON/OFF condition
(Note 3)When ABS warning lamp is ON ON
When ABS warning lamp is OFF OFF
BATTERY VOLTBattery voltage supplied to ABS actu-
ator and electric unit (control unit)Ignition switch ON 10−16 V
EBD SIGNAL EBD operation signalEBD activated ON
EBD not activated OFF
ABS SIGNAL ABS operation signalABS activated ON
ABS not activated OFF
ABS FAIL SIG
Fail-safe signal conditionIn ABS fail-safe
OFF
EBD FAIL SIG In EBD fail-safe

TROUBLE DIAGNOSIS
BRC-17
[ABS]
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CONSULT-II Functions (ABS)BFS000CZ
CONSULT-II MAIN FUNCTION
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II SETTING PROCEDURE
Refer to GI-34, "CONSULT-II Start Procedure" .
Self-Diagnosis BFS000D0
DESCRIPTION
If an error is detected in the system, ABS warning lamp on combination meter turn on. In this case, perform
self- diagnosis as follows.
OPERATION PROCEDURE
1. Turn ignition switch OFF.
2. Perform “CONSULT-II Starting Procedure”. Refer to GI-34, "
CONSULT-II Start Procedure" .
3. Turn ignition switch ON.
4. Start engine and drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute.
5. After stopping vehicle, with the engine running, touch “ABS”, “SELF-DIAG RESULTS” in order on the
CONSULT-II screen.
CAUTION:
If “START (NISSAN BASED VHCL)” is touched immediately after starting engine or turning on the
ignition switch, “ABS” might not be displayed in the System Selection screen. In this case, repeat
the operation from step 1. If it cannot be shown after several attempts, ABS actuator and electric
unit (control unit) may have malfunctioned.
6. The self-diagnostic results are displayed. (Touch “PRINT” to print out self-diagnostic results, if necessary.)

Check ABS warning lamp if “NO FAILURE” is displayed.
7. Perform the appropriate inspection from the display item list, and repair or replace the malfunctioning
component.
8. Start engine and drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute.
CAUTION:
When the wheel sensor malfunctions, after inspecting the wheel sensor system, the ABS warning
lamp will not turn off even when the system is normal unless the vehicle is driving at approxi-
mately 30 km/h (19 MPH) or more for approximately 1 minute.
ERASE MEMORY
1. Turn ignition switch OFF.
2. Start engine and touch “ABS”, “SELF-DIAG RESULTS”, “ERASE MEMORY” in order on the CONSULT-II
screen to erase the error memory.
CAUTION:
If the error memory is not erased, re-perform the operation from step 4.
3. Perform self-diagnosis again, and make sure that diagnostic memory is erased.
4. Drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute as the final inspection, and make
sure that the ABS warning lamp is off.
Diagnostic test mode Function Reference
SELF-DIAG RESULTS Self-diagnostic results can be read and erased quickly.BRC-17, "
Self-Diagno-
sis"
DATA MONITOR Input/Output data in the ABS actuator and electric unit (control unit) can be read.BRC-19, "Data Monitor"
CAN DIAG SUPPORT
MNTRThe results of transmit/receive diagnostic of CAN communication can be read.LAN-44, "CAN Diagnos-
tic Support Monitor"
ACTIVE TESTDiagnostic Test Mode in which CONSULT-II drives some actuators apart from
the ABS actuator and electric unit (control unit) and also shifts some parameters
in a specified range.BRC-20, "Active Test"
FUNCTION TESTPerformed by CONSULT-II instead of a technician to determine whether each
system is “OK” or “NG”.—
ECU PART NUMBER ABS actuator and electric unit (control unit) part number can be read. —

BRC-18
[ABS]
TROUBLE DIAGNOSIS

DISPLAY ITEM LIST
Diagnostic item Diagnostic item is detected when... Reference
RR RH SENSOR−1
[C1101]When the circuit in the rear right wheel sensor is open.
BRC-24, "
Wheel Sensor
System"
(Note 1) RR LH SENSOR−1
[C1102]When the circuit in the rear left wheel sensor is open.
FR RH SENSOR−1
[C1103]When the circuit in the front right wheel sensor is open.
FR LH SENSOR−1
[C1104]When the circuit in the front left wheel sensor is open.
RR RH SENSOR−2
[C1105]When the circuit in the rear right wheel sensor is shorted. Or when
the sensor power voltage is outside the standard. When the dis-
tance between the wheel sensor and sensor rotor is too large and
the sensor pulse cannot be recognized by the control unit.
RR LH SENSOR−2
[C1106]When the circuit in the rear left wheel sensor is shorted. Or when
the sensor power voltage is outside the standard. When the dis-
tance between the wheel sensor and sensor rotor is too large and
the sensor pulse cannot be recognized by the control unit.
FR RH SENSOR−2
[C1107]When the circuit in the front right wheel sensor is shorted. Or when
the sensor power voltage is outside the standard. When the dis-
tance between the wheel sensor and sensor rotor is too large and
the sensor pulse cannot be recognized by the control unit.
FR LH SENSOR−2
[C1108]When the circuit in the front left wheel sensor is shorted. Or when
the sensor power voltage is outside the standard. When the dis-
tance between the wheel sensor and sensor rotor is too large and
the sensor pulse cannot be recognized by the control unit.
BATTERY VOLTAGE
[ABNORMAL]
[C1109]Battery voltage of the control unit is too low.BRC-26, "
ABS Actuator
and Electric Unit (Control
Unit) Power Supply and
Ground Circuit"
CONTROLLER FAILURE
[ C 111 0 ]When there is an internal malfunction in the control unit.BRC-26, "ABS Actuator
and Electric Unit (Control
Unit) 1"
FR LH IN ABS SOL
[C1120]This is displayed when the control unit detects a malfunction in the
front left wheel inlet solenoid circuit.
BRC-28, "
ABS Actuator
Relay or ABS Motor
Relay Power System"
FR LH OUT ABS SOL
[C1121]This is displayed when the control unit detects a malfunction in the
front left wheel outlet solenoid circuit.
FR RH IN ABS SOL
[C1122]This is displayed when the control unit detects a malfunction in the
front right wheel inlet solenoid circuit.
FR RH OUT ABS SOL
[C1123]This is displayed when the control unit detects a malfunction in the
front right wheel outlet solenoid circuit.
RR LH IN ABS SOL
[C1124]This is displayed when the control unit detects a malfunction in the
rear left wheel inlet solenoid circuit.
RR LH OUT ABS SOL
[C1125]This is displayed when the control unit detects a malfunction in the
rear left wheel outlet solenoid circuit.
RR RH IN ABS SOL
[C1126]This is displayed when the control unit detects a malfunction in the
rear right wheel inlet solenoid circuit.
RR RH OUT ABS SOL
[C1127]This is displayed when the control unit detects a malfunction in the
rear right wheel outlet solenoid circuit.
PUMP MOTOR
[ C 1111 ]This is displayed when the control unit detects a malfunction in the
motor or motor relay.
ACTUATOR RLY
[C1140]This is displayed when the control unit detects a malfunction in
actuator relay circuit.
CAN COMM CIRCUIT
[U1000]When there is a malfunction in the CAN communication system.BRC-29, "
CAN Communi-
cation System"
(Note 2)

TROUBLE DIAGNOSIS
BRC-19
[ABS]
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BRC

Note 1: After completing repairs of the shorted sensor circuit, when ignition switch is turned ON, ABS warning lamp turns on. Make sure
that ABS warning lamp turns off while driving the vehicle at 30 km/h (19 MPH) or more for approximately 1 minute according to self-diag-
nosis procedure. In addition, if wheel sensor 2 is displayed for the wheels, check the wheel sensor circuit and also check the control unit
power voltage.
Note 2: When malfunctions are detected in several systems, including the CAN communication system [U1000], perform trouble diagno-
sis on the CAN communication system.
Data MonitorBFS000D1
OPERATION PROCEDURE
1. Turn ignition switch OFF.
2. Perform “CONSULT-II Starting Procedure”. Refer to GI-34, "
CONSULT-II Start Procedure" .
3. Turn ignition switch ON.
4. At the monitor item selection screen, touch one of the items “ECU INPUT SIGNALS”, “MAIN SIGNALS” or
“SELECTION FROM MENU”.
5. Touch “START” to proceed to the data monitor screen.
DISPLAY ITEM LIST
Item (Unit)Monitor item selection
Remarks
ECU INPUT
SIGNALSMAIN SIGNALSSELECTION
FROM MENU
FR LH SENSOR
[km/h (MPH)]×××Condition of wheel speed calculated by front
left wheel sensor signal is displayed.
FR RH SENSOR
[km/h (MPH)]×××Condition of wheel speed calculated by front
right wheel sensor signal is displayed.
RR LH SENSOR
[km/h (MPH)]×××Condition of wheel speed calculated by rear
left wheel sensor signal is displayed.
RR RH SENSOR
[km/h (MPH)]×××Condition of wheel speed calculated by rear
right wheel sensor signal is displayed.
FR RH IN SOL
(ON/OFF)—××Condition of front right wheel ABS inlet sole-
noid valve (ON/OFF) is displayed.
FR RH OUT SOL
(ON/OFF)—××Condition of front right wheel ABS outlet sole-
noid valve (ON/OFF) is displayed.
FR LH IN SOL
(ON/OFF)—××Condition of front left wheel ABS inlet solenoid
valve (ON/OFF) is displayed.
FR LH OUT SOL
(ON/OFF)—××Condition of front left wheel ABS outlet sole-
noid valve (ON/OFF) is displayed.
RR RH IN SOL
(ON/OFF)—××Condition of rear right wheel ABS inlet sole-
noid valve (ON/OFF) is displayed.
RR RH OUT SOL
(ON/OFF)—××Condition of rear right wheel ABS outlet sole-
noid valve (ON/OFF) is displayed.
RR LH IN SOL
(ON/OFF)—××Condition of rear left wheel ABS inlet solenoid
valve (ON/OFF) is displayed.
RR LH OUT SOL
(ON/OFF)—××Condition of rear left wheel ABS outlet sole-
noid valve (ON/OFF) is displayed.
EBD WARN LAMP
(ON/OFF) (Note)——×Condition of brake warning lamp (ON/OFF) is
displayed.
STOP LAMP SW
(ON/OFF)×××Condition of stop lamp switch (ON/OFF) is dis-
played.
MOTOR RELAY
(ON/OFF)—××Condition of ABS motor relay (ON/OFF) is dis-
played.
ACTUATOR RLY
(ON/OFF)—××Condition of ABS actuator relay (ON/OFF) is
displayed.
ABS WARN LAMP
(ON/OFF)—××Condition of ABS warning lamp (ON/OFF) is
displayed.

TROUBLE DIAGNOSIS
BRC-21
[ABS]
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BRC

TEST ITEM
Solenoid Valve
NOTE:
The example shown is for the front right wheel. The procedure for the other wheels is the same as given
below.

For ABS solenoid valve, touch “UP”, “KEEP”, and “DOWN”.
Then use screen monitor to make sure that solenoid valve
operates as shown in Solenoid Valve Operation Chart. Refer to
“Solenoid Valve Operation Chart”.
Solenoid Valve Operation Chart
*: ON for 1 to 2 seconds after the touch, and then OFF
ABS Motor
Touch “ON” and “OFF” on the display screen, and check if ABS
motor relay and ABS actuator relay are operating as given in the fol-
lowing table.
SFIA0678E
OperationABS solenoid valve
UP KEEP DOWN
FR RH IN SOL OFF ON ON
FR RH OUT SOL OFF OFF ON*
Operation ON OFF
MOTOR RELAY ON OFF
ACTUATOR RLY ON ON
SFIA0593E

BRC-24
[ABS]
TROUBLE DIAGNOSIS FOR SYSTEM

TROUBLE DIAGNOSIS FOR SYSTEMPFP:00000
Wheel Sensor SystemBFS000D5
Check each part according to CONSULT-II self-diagnostic results, and then identify the parts to be replaced.
CAUTION:
Do not check between wheel sensor terminals.
INSPECTION PROCEDURE
1. CHECK TIRE
Check air pressure, wear and size.
Are air pressure, wear and size within the standards?
YES >> GO TO 2.
NO >> Adjust air pressure, or replace tire.
2. CHECK SENSOR AND SENSOR ROTOR

Check sensor and sensor rotor.

Check sensor rotor rubber bar for damage.

Check sensor for disconnection or looseness.
OK or NG
OK >> GO TO 3.
NG >> Repair sensor mount or replace sensor rotor.
3. CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Is the above display on the screen?
YES >> GO TO 4.
NO >> INSPECTION END
4. CHECK CONNECTOR
1. Disconnect ABS actuator and electric unit (control unit) connectors and malfunctioning wheel sensor con-
nector. Check terminal for deformation, open circuit, pooh contact, etc., and repair or replace if any mal-
function is found.
2. Reconnect connectors, drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute, and then
perform self-diagnosis.
OK or NG
OK >> Connector terminal contact is loose, damaged, open or shorted.
NG >> GO TO 5.
Self-diagnostic results
FR RH SENSOR-1, -2
FR LH SENSOR-1, -2
RR RH SENSOR-1, -2
RR LH SENSOR-1, -2