2007 NISSAN 350Z brake fluid

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

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

BRC-3
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BRC
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

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

PRECAUTIONS
BRC-5
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BRC
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.

SYSTEM DESCRIPTION
BRC-7
[ABS]
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BRC
Revision: 2006 November2007 350Z
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

TROUBLE DIAGNOSIS
BRC-19
[ABS]
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BRC
Revision: 2006 November2007 350Z
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. —

TROUBLE DIAGNOSIS
BRC-23
[ABS]
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Revision: 2006 November2007 350Z
Correct and Quick DiagnosisNFS00024
DIAGNOSIS PRECAUTIONS

Before performing the trouble diagnosis, always read the general information (GI) to confirm the general
precautions. Refer to GI-3, "
General Precautions" .

After completing service, always erase the self-diagnosis results. Refer to BRC-19, "HOW TO ERASE
SELF-DIAGNOSIS RESULTS" .

When inspection of the continuity or voltage between units is performed, check connector terminals for
disconnection, looseness, bend, or collapse. If any non-standard condition is detected, repair or replace
applicable part.

Intermittent errors may be caused by a poor connection in the harness, connector, or terminal. Move har-
nesses, harness connectors, or terminals by hand to make sure all connections are solid and undamaged.

If a circuit tester is used for the check, be careful not to forcibly extend any connector terminal.

ABS is a system that uses electronic control to perform brake control and engine power control. There-
fore, phenomena like those shown in the following table may occur, but this is because the system is
working normally.
ABS WARNING LAMP ON/OFF TIMING
×: ON –: OFF
Basic InspectionNFS00025
BRAKE FLUID AMOUNT, LEAKS, AND BRAKE PADS INSPECTION
1. Check fluid level in the brake reservoir tank. If fluid level is low, refill the brake fluid.
2. Check brake tubes or hoses and around ABS actuator for leaks. If there is leaking or oozing fluid, check
following items.

If ABS actuator connection is loose, tighten the piping to the specified torque and re-conduct the leak
inspection to make sure there are no leaks.

If there is damage to the connection flare nut or ABS actuator screw, replace the damaged part and re-
conduct the leak inspection to make sure there are no leaks.

When there is fluid leaking or oozing from a part other than ABS actuator connection, if the fluid is just
oozing out, use a clean cloth to wipe off the oozing fluid and re-check for leaks. If fluid is still oozing out,
replace the damaged part.

When there is fluid leaking or oozing at ABS actuator, if the fluid is just oozing out, use a clean cloth to
wipe off the oozing fluid and re-check for leaks. If fluid is still oozing out, replace ABS actuator body.
CAUTION:
ABS actuator and electric unit (control unit) cannot be disassembled.
3. Check brake pad degree of wear. Refer to BR-26, "
PAD WEAR INSPECTION" in “Front Disc Brake” and
BR-39, "
PAD WEAR INSPECTION" in “Rear Disc Brake”.
Symptom Symptom description Result
Motor operation noiseThis is the sound of the motor operating inside ABS actuator, and there
may be some low sounds while the ABS is operating.
Normal
Just after the engine starts, the motor operating noise may be heard. This
is a normal status of the system operation check.
System operation check noiseWhen the engine is started, you may barely be able to hear a slight thud-
ding sound from the engine room, but this sound is made by the system
operation check and is normal.Normal
ABS operation
(longer stopping distance)Stopping distance may be longer for vehicles with ABS when the vehicle
drives on rough or snow-covered roads. Use lower speeds when driving on
these kinds of roads.Normal
Condition ABS warning lamp Remarks
Ignition switch OFF — —
For approximately “1” second after ignition switch ON×—
After approximately “1” second after ignition switch ON.
(When system is normal)— Turns off 2 second after engine start
ABS error×When there is an ABS actuator and electric unit
error (power or ground error)