warning NISSAN 350Z 2007 Z33 Brake Control System Workshop Manual
[x] Cancel search | Manufacturer: NISSAN, Model Year: 2007, Model line: 350Z, Model: NISSAN 350Z 2007 Z33Pages: 134, PDF Size: 3.81 MB
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BRC-1
BRAKE CONTROL SYSTEM
F BRAKES
CONTENTS
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SECTION BRC
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BRC
Revision: 2006 November2007 350Z
BRAKE CONTROL SYSTEM
ABS
PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 4
Precautions for Battery Service ................................ 4
Precautions for Brake System .................................. 4
Precautions for Brake Control .................................. 4
PREPARATION ........................................................... 6
Special Service Tools ............................................... 6
Commercial Service Tools ........................................ 6
SYSTEM DESCRIPTION ............................................ 7
System Diagram ....................................................... 7
ABS Function ........................................................... 7
EBD Function ........................................................... 7
Hydraulic Circuit Diagram ........................................ 8
CAN Communication ................................................ 8
SYSTEM DESCRIPTION ...................................... 8
TROUBLE DIAGNOSIS .............................................. 9
Fail-Safe Function .................................................... 9
ABS, EBD SYSTEM .............................................. 9
How to Proceed with Diagnosis ............................... 9
BASIC CONCEPT ................................................. 9
DIAGNOSIS FLOWCHART ................................ 10
ASKING COMPLAINTS ....................................... 11
EXAMPLE OF DIAGNOSIS SHEET .................... 11
Component Parts Location ..................................... 12
Schematic .............................................................. 13
Wiring Diagram — ABS — ..................................... 14
Control Unit Input/Output Signal Standard ............. 18
REFERENCE VALUE FROM CONSULT-III ........ 18
CONSULT- II Functions (ABS) ............................... 19
CONSULT-III MAIN FUNCTION .......................... 19
Self-Diagnosis ........................................................ 19
OPERATION PROCEDURE ............................... 19
HOW TO ERASE SELF-DIAGNOSIS RESULTS ... 19
DISPLAY ITEM LIST ........................................... 20
Data Monitor ........................................................... 21
DISPLAY ITEM LIST ........................................... 21Active Test .............................................................. 22
TEST ITEM .......................................................... 22
Correct and Quick Diagnosis .................................. 23
DIAGNOSIS PRECAUTIONS ............................. 23
ABS WARNING LAMP ON/OFF TIMING ............ 23
Basic Inspection ..................................................... 23
BRAKE FLUID AMOUNT, LEAKS, AND BRAKE
PADS INSPECTION ............................................ 23
POWER SYSTEM TERMINAL LOOSENESS
AND BATTERY INSPECTION ............................. 24
ABS WARNING LAMP INSPECTION ................. 24
TROUBLE DIAGNOSIS FOR SYSTEM .................... 25
Wheel Sensor System ............................................ 25
INSPECTION PROCEDURE .............................. 25
ABS Actuator and Electric Unit (Control Unit) ........ 27
INSPECTION PROCEDURE .............................. 27
ABS Actuator and Electric Unit (Control Unit) Power
and Ground Systems .............................................. 27
INSPECTION PROCEDURE .............................. 27
ABS Actuator Relay or ABS Motor Relay Power Sys-
tem .......................................................................... 29
INSPECTION PROCEDURE .............................. 29
Stop Lamp Switch System ...................................... 30
INSPECTION PROCEDURE .............................. 30
ABS Actuator and Electric Unit (Control Unit) 2 ..... 31
INSPECTION PROCEDURE .............................. 31
CAN Communication System ................................. 31
INSPECTION PROCEDURE .............................. 31
TROUBLE DIAGNOSIS FOR SYMPTOMS .............. 32
Excessive ABS Function Operation Frequency ...... 32
Unexpected Pedal Reaction ................................... 32
The Braking Distance is Long ................................. 33
The ABS Function Does Not Operate .................... 33
Pedal Vibration or ABS Operation Sound Occurs ... 33
WHEEL SENSORS ................................................... 34
Removal and Installation ........................................ 34
COMPONENTS ................................................... 34
REMOVAL ........................................................... 34
INSTALLATION ................................................... 34
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BRC-2Revision: 2006 November2007 350Z SENSOR ROTOR ...................................................... 35
Removal and Installation ........................................ 35
REMOVAL ........................................................... 35
INSTALLATION .................................................... 35
ABS ACTUATOR AND ELECTRIC UNIT (ASSEM-
BLY) ........................................................................... 36
Removal and Installation ........................................ 36
COMPONENTS ................................................... 36
TCS/ABS
PRECAUTIONS ......................................................... 37
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................. 37
Precautions for Battery Service .............................. 37
Precautions for Brake System ................................ 37
Precautions for Brake Control ................................ 37
PREPARATION ......................................................... 39
Special Service Tools ............................................. 39
Commercial Service Tools ...................................... 39
SYSTEM DESCRIPTION .......................................... 40
System Diagram ..................................................... 40
TCS Function .......................................................... 40
ABS Function .......................................................... 40
EBD Function ......................................................... 40
Hydraulic Circuit Diagram ....................................... 41
CAN Communication .............................................. 41
SYSTEM DESCRIPTION .................................... 41
TROUBLE DIAGNOSIS ............................................ 42
Fail-Safe Function .................................................. 42
TCS SYSTEM ...................................................... 42
ABS, EBD SYSTEM ............................................ 42
How to Proceed with Diagnosis .............................. 42
BASIC CONCEPT ............................................... 42
DIAGNOSIS FLOWCHART ................................. 43
ASKING COMPLAINTS ....................................... 44
EXAMPLE OF DIAGNOSIS SHEET .................... 44
Component Parts Location ..................................... 45
Schematic ............................................................... 46
Wiring Diagram — TCS — ..................................... 47
Control Unit Input/Output Signal Standard .............. 51
REFERENCE VALUE FROM CONSULT-III ........ 51
CONSULT- II Functions (ABS) ................................ 52
CONSULT-III MAIN FUNCTION .......................... 52
Self-diagnosis ......................................................... 53
OPERATION PROCEDURE ................................ 53
HOW TO ERASE SELF-DIAGNOSIS RESULTS ... 53
DISPLAY ITEM LIST ........................................... 53
Data Monitor ........................................................... 55
DISPLAY ITEM LIST ........................................... 55
Active Test .............................................................. 57
TEST ITEM .......................................................... 57
Correct and Quick Diagnosis .................................. 57
DIAGNOSIS PRECAUTIONS .............................. 57
ABS WARNING LAMP, TCS OFF INDICATOR
LAMP AND SLIP INDICATOR LAMP ON/OFF TIMING ................................................................ 59
Basic Inspection ...................................................... 59
BRAKE FLUID AMOUNT, LEAKS, AND BRAKE
PADS INSPECTION ............................................ 59
POWER SYSTEM TERMINAL LOOSENESS
AND BATTERY INSPECTION ............................. 59
ABS WARNING LAMP, TCS OFF INDICATOR
LAMP, SLIP INDICATOR LAMP INSPECTION .... 60
TROUBLE DIAGNOSIS FOR SYSTEM .................... 61
Wheel Sensor System ............................................ 61
INSPECTION PROCEDURE ............................... 61
Engine System ........................................................ 63
INSPECTION PROCEDURE ............................... 63
ABS Actuator and Electric Unit (Control Unit) ......... 63
INSPECTION PROCEDURE ............................... 63
ABS Actuator and Electric Unit (Control Unit) Power
and Ground Systems .............................................. 64
INSPECTION PROCEDURE ............................... 64
ABS Actuator Relay or ABS Motor Relay Power Sys-
tem .......................................................................... 65
INSPECTION PROCEDURE ............................... 65
Stop Lamp Switch System ...................................... 66
INSPECTION PROCEDURE ............................... 66
ABS Actuator and Electric Unit (Control Unit) 2 ...... 67
INSPECTION PROCEDURE ............................... 67
CAN Communication System ................................. 67
INSPECTION PROCEDURE ............................... 67
Component Inspection ............................................ 68
TCS OFF SWITCH .............................................. 68
TROUBLE DIAGNOSIS FOR SYMPTOMS .............. 69
Excessive ABS Function Operation Frequency ...... 69
Unexpected Pedal Reaction ................................... 70
The Braking Distance Is Long ................................. 70
The ABS Function Does Not Operate ..................... 70
Pedal Vibration or ABS Operation Sound Occurs ... 71
The Vehicle Jerks Around During TCS/ABS Control ... 71
WHEEL SENSORS ................................................... 73
Removal and Installation ......................................... 73
COMPONENTS ................................................... 73
REMOVAL ............................................................ 73
INSTALLATION .................................................... 73
SENSOR ROTOR ...................................................... 74
Removal and Installation ......................................... 74
REMOVAL ............................................................ 74
INSTALLATION .................................................... 74
ABS ACTUATOR AND ELECTRIC UNIT (ASSEM-
BLY) ........................................................................... 75
Removal and Installation ......................................... 75
COMPONENTS ................................................... 75
VDC/TCS/ABS
PRECAUTIONS ......................................................... 76
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................. 76
Precautions for Battery Service .............................. 76
Precautions for Brake System ................................ 76
Precautions for Brake Control ................................. 77
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BRC-3
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Revision: 2006 November2007 350Z PREPARATION ......................................................... 78
Special Service Tools ............................................. 78
Commercial Service Tools ...................................... 78
ON-VEHICLE SERVICE ........................................... 79
Adjustment of Steering Angle Sensor Neutral Posi-
tion ......................................................................... 79
SYSTEM DESCRIPTION .......................................... 80
System Diagram ..................................................... 80
VDC Function ......................................................... 80
TCS Function ......................................................... 80
ABS Function ......................................................... 81
EBD Function ......................................................... 81
Hydraulic Circuit Diagram ...................................... 81
CAN Communication .............................................. 81
SYSTEM DESCRIPTION .................................... 81
TROUBLE DIAGNOSIS ............................................ 82
Fail-Safe Function .................................................. 82
VDC/TCS SYSTEM ............................................. 82
ABS, EBD SYSTEM ............................................ 82
How to Proceed With Diagnosis ............................. 82
BASIC CONCEPT ............................................... 82
DIAGNOSIS FLOWCHART ................................ 83
ASKING COMPLAINTS ...................................... 84
EXAMPLE OF DIAGNOSIS SHEET ................... 84
Component Parts Location ..................................... 85
Schematic .............................................................. 86
Wiring Diagram — VDC — ..................................... 87
Control Unit Input/Output Signal Standard ............. 94
REFERENCE VALUE FROM CONSULT-III ........ 94
CONSULT-III Functions (ABS) ............................... 96
CONSULT-III MAIN FUNCTION .......................... 96
Self-Diagnosis ........................................................ 96
OPERATION PROCEDURE ............................... 96
HOW TO ERASE SELF-DIAGNOSIS RESULTS ... 96
DISPLAY ITEM LIST ........................................... 97
Data Monitor ........................................................... 99
DISPLAY ITEM LIST ........................................... 99
Active Test ............................................................ 101
TEST ITEM ....................................................... 101
Correct and Quick Diagnosis ............................... 101
DIAGNOSIS PRECAUTIONS ........................... 101
ABS WARNING LAMP, VDC OFF INDICATOR
LAMP, SLIP INDICATOR LAMP AND BRAKE
WARNING LAMP ON/OFF TIMING .................. 103
Basic Inspection ................................................... 103
BRAKE FLUID AMOUNT, LEAKS, AND BRAKE
PADS INSPECTION .......................................... 103
POWER SYSTEM TERMINAL LOOSENESS
AND BATTERY INSPECTION .......................... 103
ABS WARNING LAMP, VDC OFF INDICATOR
LAMP, SLIP INDICATOR LAMP INSPECTION . 103
TROUBLE DIAGNOSIS FOR SYSTEM ................. 105
Wheel Sensor System .......................................... 105
INSPECTION PROCEDURE ............................ 105
Engine System ..................................................... 107
INSPECTION PROCEDURE ............................ 107
VDC/TCS/ABS Control Unit 1 .............................. 107
INSPECTION PROCEDURE ............................ 107Pressure Sensor System ......................................108
INSPECTION PROCEDURE ............................108
Steering Angle Sensor System .............................110
INSPECTION PROCEDURE ............................110
Yaw Rate/Side G Sensor System ..........................111
INSPECTION PROCEDURE .............................111
Solenoid and VDC Change-Over Valve System ...113
INSPECTION PROCEDURE ............................113
ABS Motor and Motor Relay System ....................116
INSPECTION PROCEDURE ............................116
Actuator Relay System .........................................118
INSPECTION PROCEDURE ............................118
Stop Lamp Switch System ....................................119
INSPECTION PROCEDURE ............................119
VDC/TCS/ABS Control Unit Power and Ground
Systems ................................................................120
INSPECTION PROCEDURE ............................120
VDC/TCS/ABS Control Unit 2 ...............................121
INSPECTION PROCEDURE ............................121
Brake Fluid Level Switch System .........................121
INSPECTION PROCEDURE ............................121
CAN Communication System ...............................122
INSPECTION PROCEDURE ............................122
Component Inspection ..........................................122
VDC OFF SWITCH ...........................................122
ABS MOTOR RELAY AND ACTUATOR RELAY .123
VDC/TCS/ABS ACTUATOR ..............................123
TROUBLE DIAGNOSIS FOR SYMPTOMS ............124
Excessive ABS Function Operation Frequency ....124
Unexpected Pedal Reaction .................................124
The Braking Distance Is Long ..............................125
The ABS Function Does Not Operate ..................125
Pedal Vibration or ABS Operation Sound Occurs .125
Vehicle Jerks During VDC/TCS/ABS Control .......126
WHEEL SENSORS .................................................128
Removal and Installation ......................................128
COMPONENTS .................................................128
REMOVAL .........................................................128
INSTALLATION .................................................128
VDC/TCS/ABS CONTROL UNIT ............................129
Removal and Installation ......................................129
REMOVAL .........................................................129
INSTALLATION .................................................129
SENSOR ROTOR ...................................................130
Removal and Installation ......................................130
REMOVAL .........................................................130
INSTALLATION .................................................130
VDC/TCS/ABS ACTUATOR ...................................131
Removal and Installation ......................................131
COMPONENTS .................................................131
G SENSOR ..............................................................132
Removal and Installation ......................................132
REMOVAL .........................................................132
INSTALLATION .................................................132
STEERING ANGLE SENSOR ................................133
Removal and Installation ......................................133
REMOVAL .........................................................133
INSTALLATION .................................................133
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BRC-4
[ABS]
PRECAUTIONS
Revision: 2006 November2007 350Z
[ABS]PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NFS0001M
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Battery ServiceNFS0001N
Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
Precautions for Brake SystemNFS0001O
Recommended fluid is brake fluid “DOT 3”. Refer to MA-11, "RECOMMENDED FLUIDS AND LUBRI-
CANTS" .
Never reuse drained brake fluid.
Be careful not to splash brake fluid on painted areas such as body. If brake fluid is splashed, wipe it off
and flush area with water immediately.
Never use mineral oils such as gasoline or kerosene to clean. They will ruin rubber parts and cause
improper operation.
Use a flare nut wrench when removing flare nuts, and use a flare
nut crowfoot and torque wrench when tighten brake tube flare
nuts.
When installing brake tubes, be sure to check torque.
Brake system is an important safety part. If a brake fluid leak is
detected, always disassemble the affected part. If a malfunction
is detected, replace part with a new one.
Before working, turn ignition switch OFF and disconnect electri-
cal connector of ABS actuator and electric unit (control unit) or
the battery negative terminal.
WARNING:
Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.
Precautions for Brake ControlNFS0001P
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 compartment. 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.
SBR686C
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PRECAUTIONS
BRC-5
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Revision: 2006 November2007 350Z
When an error is indicated by ABS or another warning lamp, collect all necessary information from cus-
tomer (what symptoms are present under what conditions) and check for simple causes before starting
diagnostic servicing. Besides electrical system inspection, check booster operation, brake fluid level, and
oil leaks.
If tire size and type are used in an improper combination, or brake pads are not Genuine NISSAN parts,
stopping distance or steering stability may deteriorate.
If there is a radio, antenna, or antenna lead-in wire (including wiring) near control module, ABS function
may have a malfunction or error.
If aftermarket parts (car stereo, CD player, etc.) Have been installed, check for incidents such as harness
pinches, open circuits, and improper wiring.
Page 7 of 134
SYSTEM DESCRIPTION
BRC-7
[ABS]
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SYSTEM DESCRIPTIONPFP:00000
System DiagramNFS0001S
ABS FunctionNFS0001T
The Anti-Lock Braking 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 starts, the ABS becomes inoperative, and
the ABS warning lamp turns on.
Electrical System Diagnosis by CONSULT-III is available.
EBD FunctionNFS0001U
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.
In case of electrical system break down, the Fail-Safe function is activated, the EBD and ABS becomes
inoperative, and the ABS warning lamp and brake warning lamp are turned on.
Electrical System Diagnosis by CONSULT-III is available.
SFIA3404E
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TROUBLE DIAGNOSIS
BRC-9
[ABS]
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TROUBLE DIAGNOSISPFP:00004
Fail-Safe FunctionNFS000II
ABS, EBD SYSTEM
In case of electrical problems with the ABS, the ABS warning lamp will turn on. In case of electrical problems
with the EBD, brake warning lamp, ABS warning lamp will turn on. Simultaneously, the ABS become one of
the following conditions of the Fail-Safe function.
For ABS trouble, only the EBD is activated and the condition of the vehicle is the same condition of vehi-
cle without ABS equipment.
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 trouble, The EBD and ABS become inoperative, are the condition of the vehicle is the same as
the condition of vehicles without ABS, EBD equipment.
How to Proceed with DiagnosisNFS0001Y
BASIC CONCEPT
Most important point to perform diagnosis is to understand systems (control and mechanism) in vehicle
thoroughly.
It is also important to clarify customer complaints before inspec-
tion.
First of all, reproduce symptom, and understand it fully.
Ask customer about his/her complaints carefully. In some cases,
it will be necessary to check symptom by driving vehicle with
customer.
NOTE:
Customers are not professionals. Do not assume “maybe cus-
tomer means...” or “maybe customer mentioned this symptom”.
It is essential to check symptoms right from beginning in order to
repair a malfunction completely.
For an intermittent malfunction, it is important to reproduce
symptom based on interview with customer and past examples.
Do not perform inspection on ad hoc basis. Most intermittent
malfunctions are caused by poor contacts. In this case, it will be
effective to shake suspected harness or connector by hand.
When repairs are performed without any symptom check, no
one can judge if malfunction has actually been eliminated.
After diagnosis, make sure to carry out “erase memory”. Refer to
BRC-19, "
HOW TO ERASE SELF-DIAGNOSIS RESULTS" .
For an intermittent malfunction, move harness or harness con-
nector by hand to check poor contact or false open circuit.
Always read “GI General Information” to confirm general precautions. Refer to GI-3, "General Precau-
tions" .
EFJ0028D
SEF233G
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BRC-18
[ABS]
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
Control Unit Input/Output Signal StandardNFS00022
REFERENCE VALUE FROM CONSULT-III
CAUTION:
The display shows the control unit calculation data, so a normal value might be displayed even in the
event the output circuit (harness) is open or short - circuited.
Note 1: Confirm tire pressure is normal.
Note 2: Serves as EBD warning lamp.
Note 3: ON/OFF timing of ABS warning lamp
ON: For approximately 1 second after the ignition switch is turned on or when an error is detected.
OFF: Approximately 1 second after the ignition switch is turned on (when system is normal).Monitor item Display ContentData monitor
ConditionReference values for normal
operation
WHEEL SENSORWheel speed calculated using
signals from all four wheel sen-
sorsVehicle stopped 0 km/h (0 MPH)
While driving (Note 1)Nearly matches the speed-
ometer display
(± 10% or less)
IN ABS S/V
OUT ABS S/VOperation status of all solenoidsWhen the actuator solenoid operates or
during a fail-safeON
When the actuator relay operates and
the actuator solenoid does not operateOFF
EBD WARN LAMPBrake warning lamp on condition
(Note 2)Brake warning lamp ON ON
Brake warning lamp OFF OFF
STOP LAMP SW Brake pedal operationBrake pedal depressed ON
Brake pedal not depressed OFF
MOTOR RELAYMotor and motor relay operation
statusWhen the motor relay and motor are
operatingON
When the motor relay and motor are not
operatingOFF
ACTUATOR RLY Actuator relay operation statusWhen the actuator relay is operating OFF
When the actuator relay is not operat-
ingON
ABS WARN LAMPABS warning lamp on condition
(Note 3)ABS warning lamp ON ON
ABS warning lamp OFF OFF
BATTERY VOLTBattery voltage supplied to ABS
control unitIgnition switch ON 10 - 16V
GEARDetermined gear shift position
from the A/T PNP switch signalDrivingM/T vehicles are always left
in 1.
ENGINE RPM Engine runningWith engine stopped 0 rpm
With engine runningAlmost in accordance with
tachometer display
FAIL SIGNAL Fail signal statusDuring ABS fail-safe
During EBD fail-safeON
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TROUBLE DIAGNOSIS
BRC-19
[ABS]
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CONSULT- II Functions (ABS)NFS00023
CONSULT-III MAIN FUNCTION
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
Self-DiagnosisNFS000HD
OPERATION PROCEDURE
1. Before performing the self-diagnosis, start engine and drive vehicle at 30 km/h (19 MPH) or more for
approximately 1 minute.
HOW TO ERASE SELF-DIAGNOSIS RESULTS
1. After erasing DTC memory, start engine and 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 and brake warning lamp turn
OFF.
CAUTION:
If memory cannot be erased, perform applicably diagnosis.
When the wheel sensor malfunctions, after inspecting the wheel sensor system, the ABS warning lamp
and brake warning lamp will not turn OFF even when the system is normal unless the vehicle is driving
at approximately 30 km/h (19 MPH) or more for approximately 1 minute.
Brake warning lamp will turn ON in case of parking brake operation (when switch is ON) or of brake
fluid level switch operation (when brake fluid is insufficient).
Diagnostic test mode Function Reference
SELF-DIAG RESULTS Self-diagnostic results can be read and erased quickly.BRC-19, "
Self-Diagnosis"
DATA MONITORInput/Output data in the ABS actuator and electric unit (control unit) can be
read.BRC-21, "Data Monitor"
CAN DIAG SUPPORT
MNTRThe results of transmit/receive diagnosis of communication can be read.LAN-44, "CAN Diagnostic
Support Monitor"
ACTIVE TESTDiagnostic Test Mode in which CONSULT-III drives some actuators apart
from the ABS actuator and electric unit (control unit) and also shifts some
parameters in a specified range.BRC-22, "Active Test"
FUNCTION TESTConducted by CONSULT-III 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. —
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TROUBLE DIAGNOSIS
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Note 1: After completing repairs of the shorted sensor circuit, when ignition switch is turned ON, ABS warning lamp turns on. Check that
ABS warning lamp turns off while driving the vehicle at approximately 30 km/h (19 MPH) or more for approximately 1 minute according
to self-diagnosis 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 errors are detected in several systems, including the CAN communication system [U1000], troubleshoot the CAN commu-
nication system.
Data MonitorNFS000HE
DISPLAY ITEM LIST
×: Standard –: Not applicable : Option EMERGENCY BRAKE
[C1153]When the ABS actuator and electric unit (control unit) malfunctions (pressure
increase is too much or too little).BRC-31, "
ABS Actua-
tor and Electric Unit
(Control Unit) 2"
CAN COMM CIRCUIT
[U1000]When ABS actuator and electric unit (control unit) is not transmitting or receiv-
ing CAN communication signal for 2 seconds or more.BRC-31, "CAN Com-
munication System"
(Note 2) Display item Malfunction detecting condition Check item
Item (Unit)SELECT MONITOR ITEM
Remarks
ECM INPUT
SIGNALSMAIN SIGNALSSELECTION
MENU
FR LH SENSOR
[km/h (MPH)]××Wheel speed calculated by front LH wheel sensor sig-
nal is displayed.
FR RH SENSOR
[km/h (MPH)]××Wheel speed calculated by front RH wheel sensor sig-
nal is displayed.
RR LH SENSOR
[km/h (MPH)]××Wheel speed calculated by rear LH wheel sensor signal
is displayed.
RR RH SENSOR
[km/h (MPH)]××Wheel speed calculated by rear RH wheel sensor sig-
nal is displayed.
FR LH IN SOL
(ON/OFF)—×Front left inlet ABS solenoid valve (ON/OFF) status is
displayed.
FR LH OUT SOL
(ON/OFF)—×Front left outlet ABS solenoid valve (ON/OFF) status is
displayed.
RR RH IN SOL
(ON/OFF)—×Rear right inlet ABS solenoid valve (ON/OFF) status is
displayed.
RR RH OUT SOL
(ON/OFF)—×Rear right outlet ABS solenoid valve (ON/OFF) status
is displayed.
FR RH IN SOL
(ON/OFF)—×Front right inlet ABS solenoid valve (ON/OFF) status is
displayed.
FR RH OUT SOL
(ON/OFF)—×Front right outlet ABS solenoid valve (ON/OFF) status
is displayed.
RR LH IN SOL
(ON/OFF)—×Rear left wheel inside ABS solenoid valve (ON/OFF)
status is displayed.
RR LH OUT SOL
(ON/OFF)—×Rear left outlet ABS solenoid valve (ON/OFF) status is
displayed.
EBD WARN LAMP
(ON/OFF)—×Brake warning lamp (ON/OFF) status is displayed.
STOP LAMP SW
(ON/OFF)××Stop lamp switch (ON/OFF) status is displayed.
MOTOR RELAY
(ON/OFF)—×ABS motor relay (ON/OFF) condition is displayed.
ACTUATOR RLY
(ON/OFF)—×ABS actuator relay (ON/OFF) status is displayed.
ABS WARN LAMP
(ON/OFF)—×ABS warning lamp (ON/OFF) status is displayed.
BATTERY VOLT
(V )××The voltage supplied to the ABS control unit is dis-
played.