engine 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
Page 2 of 134
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
Page 3 of 134
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
Page 4 of 134
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
Page 18 of 134
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
Page 19 of 134
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. —
Page 23 of 134
TROUBLE DIAGNOSIS
BRC-23
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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)
Page 24 of 134
BRC-24
[ABS]
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
POWER SYSTEM TERMINAL LOOSENESS AND BATTERY INSPECTION
Make sure the battery positive cable, negative cable and ground connection are not loose. In addition, check
the battery voltage to make sure it has not dropped.
ABS WARNING LAMP INSPECTION
1. Make sure ABS warning lamp turned on approximately 1 second when the ignition switch is turned ON.
Check CAN communications. Refer to BRC-31, "
CAN Communication System" .
2. Make sure lamp turns off approximately 1 second after the ignition switch is turned on. If the lamp does
not turn off, conduct self-diagnosis.
3. Make sure ABS warning lamp turn off 2 seconds after the engine is started. If ABS warning lamp has not
turned off 10 seconds after the engine has been started, conduct self-diagnosis of the ABS actuator and
electric unit.
4. After conducting the self-diagnosis, be sure to erase the error memory. Refer to BRC-19, "
HOW TO
ERASE SELF-DIAGNOSIS RESULTS"
Page 30 of 134
BRC-30
[ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2006 November2007 350Z
Stop Lamp Switch SystemNFS0002B
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSIS RESULTS
Check self-diagnosis results.
Is the above displayed in the self-diagnosis display item?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK CONNECTOR
1. Disconnect ABS actuator and electric unit (control unit) connector E51 and stop lamp switch connector
E112, check the terminal for deformation, disconnection, looseness, and so on. If there is an error, repair
or replace the terminal.
2. Securely reconnect the connector and conduct self-diagnosis.
3. Start engine.
4. Repeat Pumping brake pedal carefully several times, then perform self-diagnosis again.
Is the result of self-diagnosis normal?
YES >> The connector terminal contact is loose, damaged, open or shorted.
NO >> GO TO 3.
3. CHECK STOP LAMP SWITCH
1. Turn ignition switch OFF and disconnect stop lamp switch con-
nector E111.
2. Disconnect stop lamp switch connector
3. Check continuity between stop lamp switch connector terminal 3
and 4.
OK or NG
OK >> GO TO 4.
NG >> Replace stop lamp switch. Refer to BR-8, "
Components" .
Self-diagnosis results
STOP LAMP SW
Stop lamp switch Condition Continuity
3 – 4Release stop lamp switch
(When brake pedal is depressed.)Ye s
Push stop lamp switch
(When brake pedal is released.)No
SFIA3390E
Page 33 of 134
TROUBLE DIAGNOSIS FOR SYMPTOMS
BRC-33
[ABS]
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The Braking Distance is LongNFS0002G
CAUTION:
On slippery road surfaces, the stopping distance might be longer with the ABS operating than when
the ABS is not operating.
1. CHECK FUNCTION
Disconnect ABS actuator and electric unit (control unit) connector to deactivate ABS. In this condition, check
stopping distance. After inspection, connect connector.
OK or NG
OK >> GO TO 3. CHECK WHEEL SENSOR AND SENSOR ROTOR in BRC-32, "Excessive ABS Func-
tion Operation Frequency" .
NG >>
Bleed air from the brake piping.
Check brake system.
The ABS Function Does Not OperateNFS0002H
CAUTION:
The ABS does not operate when the speed is 10 km/h (6 MPH) or less.
1. CHECK ABS WARNING LAMP DISPLAY
Make sure warning lamp turns off approximately 1 second after the ignition switch is turned on or when driv-
ing.
OK or NG
OK >> GO TO 3. CHECK WHEEL SENSOR AND SENSOR ROTOR in BRC-32, "Excessive ABS Func-
tion Operation Frequency" .
NG >> Perform self-diagnosis. Refer to BRC-19, "
OPERATION PROCEDURE" .
Pedal Vibration or ABS Operation Sound OccursNFS0002I
CAUTION:
Under the following conditions, when brake pedal is lightly depressed (just place a foot on it), ABS is
activated and vibration is felt. However, this is normal.
When shifting gears
When driving on slippery road
During cornering at high speed
When passing over bumps or grooves [50 mm (1.97 in) or more]
When pulling away just after starting engine [at approximately 10 km/h (6 MPH) or higher]
1. SYMPTOM CHECK 1
Check if pedal vibration or operation sound occurs when the engine is started.
Does the symptom occur?
YES >> GO TO 2.
NO >> Perform self-diagnosis. Refer to BRC-19, "
OPERATION PROCEDURE" .
2. SYMPTOM CHECK 2
Check symptom when electrical component (headlamps, etc.) switches are operated.
Does the symptom occur when the electrical component (head lamp, etc.) switches are operated?
YES >> Check if there is a radio, antenna, antenna lead wire, or wiring close to the control unit (or its wir-
ing), and if there is, move it farther away.
NO >> GO TO 3. CHECK WHEEL SENSOR AND SENSOR ROTOR in BRC-32, "
Excessive ABS Func-
tion Operation Frequency" .
Page 37 of 134
PRECAUTIONS
BRC-37
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Revision: 2006 November2007 350Z
[TCS/ABS]PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NFS0002M
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 ServiceNFS0002N
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 SystemNFS0002O
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. They will ruin rubber parts of the hydraulic system.
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 ControlNFS0002P
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.
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
SBR686C