2007 NISSAN 350Z warning

BRC-40
[TCS/ABS]
SYSTEM DESCRIPTION
Revision: 2006 November2007 350Z
SYSTEM DESCRIPTIONPFP:00000
System DiagramNFS0002S
TCS FunctionNFS0002T

The wheel spin occurrence of the drive wheels is detected by the ABS actuator and electric unit (control
unit) using the wheel speed signals from all four wheels, so when wheel spin occurs, the amount of wheel
spin is reduced by cutting the fuel to the engine, and partially closing the throttle valve to reduce the
engine torque. The throttle opening is also controlled to obtain the optimum engine torque.

Depending on road circumstances, the driver may have a sluggish feel. This is normal, because the opti-
mum traction has the highest priority under TCS operation.

TCS may be activated any time the vehicle suddenly accelerates, suddenly downshifts, or is driven on a
road with a varying surface friction coefficient.

During TCS operation, it informs a driver of system operation by flashing SLIP indicator lamp.
ABS FunctionNFS0002U

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 FunctionNFS0002V

The 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 Pres-
sure 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.
SFIA1218E

BRC-42
[TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
TROUBLE DIAGNOSISPFP:00004
Fail-Safe FunctionNFS000IJ
TCS SYSTEM
In case of Throttle Control System trouble, the TCS OFF indicator lamp and SLIP indicator lamp are turned on,
and the condition of the vehicle is the same as the condition of vehicles without TCS equipment. In case of
trouble to the Throttle Control System, the ABS control continues to operate normally without TCS control.
CAUTION:
If the Fail-Safe function is activated, then perform the self-diagnosis for TCS/ABS control system.
ABS, EBD SYSTEM
In case of electrical problems with the ABS, the ABS warning lamp, TCS OFF indicator lamp and SLIP indica-
tor lamp will turn on. In case of electrical problem with the EBD, brake warning lamp, ABS warning lamp, TCS
OFF indicator lamp and SLIP indicator lamp will turn on. Simultaneously, the TCS/ABS become one of the fol-
lowing 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-
cles without TCS/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.
How to Proceed with DiagnosisNFS0002Z
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-53, "
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

TROUBLE DIAGNOSIS
BRC-51
[TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: 2006 November2007 350Z
Control Unit Input/Output Signal StandardNFS00034
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.
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
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
EBD WARN LAMPBrake warning lamp on condition
(Note 2)Brake warning lamp ON ON
Brake warning lamp OFF OFF
ABS WARN LAMPABS warning lamp on condition
(Note 3)ABS warning lamp ON ON
ABS warning lamp OFF OFF
OFF LAMPTCS OFF indicator lamp on con-
dition (Note 4)TCS OFF indicator lamp ON ON
TCS OFF indicator lamp OFF OFF
SLIP LAMPSLIP indicator lamp on condition
(Note 5)SLIP indicator lamp ON ON
SLIP indicator lamp OFF OFF
OFF SW TCS switch ON-OFF statusTCS OFF switch ON
(TCS OFF indicator lamp ON)ON
TCS OFF switch OFF
(TCS OFF indicator lamp OFF)OFF
BATTERY VOLTBattery voltage supplied to TCS/
ABS control unitIgnition switch ON 10 - 16 V
GEARDetermined gear shift position
from the A/T PNP switch signalDriving1 - 5

Differs depending on the
transmission status.
(M/T vehicles are always left
in 1.)
ENGINE RPM Engine runningWith engine stopped 0 rpm
With engine runningAlmost in accordance with
tachometer display
N POSITION SIGNALDetermined gear shift position
from the A/T PNP switch signal
(Note 5)N position ON
Other than N position OFF

BRC-52
[TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
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).
Note 4: ON/OFF timing of TCS OFF indicator lamp
ON: For approximately 1 second after the ignition switch is turned on, when an error is detected, or when the TCS OFF switch is on.
OFF: Approximately 1 second after the ignition switch is turned on (when system is normal), when TCS OFF switch is off.
Note 5: ON/OFF timing of SLIP indicator 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), when TCS function is not operating
Flash: When the TCS function is operating during driving.
Note 6: A/T models.
CONSULT- II Functions (ABS)NFS00035
CONSULT-III MAIN FUNCTION
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
P POSITION SIGNALDetermined gear shift position
from the A/T PNP switch signal
(Note 6)P position ON
Other than P position OFF
FAIL SIGNAL Fail signal statusDuring TCS fail-safe
During ABS fail-safe
During EBD fail-safeON
ACCEL POS SIGOpen/close condition of throttle
valve (linked with accelerator
pedal).Accelerator pedal not depressed (igni-
tion switch is ON)0 %
Depress accelerator pedal (ignition
switch is ON)0 to 100 % Monitor item Display ContentData monitor
ConditionReference values for normal
operation
Diagnostic test mode Function Reference
SELF-DIAG RESULTS Self-diagnostic results can be read and erased quickly.BRC-53, "
Self-diagnosis"
DATA MONITORInput/Output data in the ABS actuator and electric unit (control unit)
can be read.BRC-55, "Data Monitor"
CAN DIAG SUPPORT
MNTRThe results of transmit/receive diagnosis of communication can be
read.LAN-44, "CAN Diagnostic Sup-
port 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-57, "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-53
[TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: 2006 November2007 350Z
Self-diagnosisNFS000HG
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, TCS OFF indicator lamp,
SLIP indicator 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,
TCS OFF indicator lamp, SLIP indicator 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 approxi-
mately 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).
DISPLAY ITEM LIST
Display item Malfunction detecting condition Check item
RR RH SENSOR-1
[C1101]When the circuit in the rear RH wheel sensor is open.
BRC-61, "
Wheel Sensor
System"
(Note 1) RR LH SENSOR-1
[C1102]When the circuit in the rear LH wheel sensor is open.
FR RH SENSOR-1
[C1103]When the circuit in the front RH wheel sensor is open.
FR LH SENSOR-1
[C1104]When the circuit in the front LH wheel sensor is open.
RR RH SENSOR-2
[C1105]When the circuit in the rear RH wheel sensor is short-circuited. Or when the
sensor power voltage is outside the standard. When the distance between the
wheel sensor and sensor rotor is too large and the sensor pulse cannot be
recognized by the control unit.
RR LH SENSOR-2
[C1106]When the circuit in the rear LH wheel sensor is short-circuited. Or when the
sensor power voltage is outside the standard. When the distance between the
wheel sensor and sensor rotor is too large and the sensor pulse cannot be
recognized by the control unit.
FR RH SENSOR-2
[C1107]When the circuit in the front RH wheel sensor is short-circuited. Or when the
sensor power voltage is outside the standard. When the distance between the
wheel sensor and sensor rotor is too large and the sensor pulse cannot be
recognized by the control unit.
FR LH SENSOR-2
[C1108]When the circuit in the front LH wheel sensor is short-circuited. Or when the
sensor power voltage is outside the standard. When the distance between the
wheel sensor and sensor rotor is too large and the sensor pulse cannot be
recognized by the control unit.
BATTERY VOLTAGE
[ABNORMAL]
[C1109]When the ABS actuator and electric unit (control unit) power supply voltage is
lower than normal.BRC-64, "
ABS Actuator
and Electric Unit (Con-
trol Unit) Power and
Ground Systems"
CONTROLLER FAILURE
[C1110]When there is an internal error in the ABS actuator and electric unit (control
unit).BRC-63, "ABS Actuator
and Electric Unit (Con-
trol Unit)"
PUMP MOTOR
[ C 1111 ]When the ABS actuator and electric unit (control unit) detects an error in the
motor or motor relay.BRC-65, "ABS Actuator
Relay or ABS Motor
Relay Power System"
MAIN RELAY
[C1114]When the control unit detects an error in the actuator relay systemBRC-65, "ABS Actuator
Relay or ABS Motor
Relay Power System"

BRC-54
[TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
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.STOP LAMP SW
[ C 111 6 ]When a stop lamp switch open-circuit is detected.BRC-66, "
Stop Lamp
Switch System"
FR LH IN ABS SOL
[C1120]When the control unit detects an error in the front left inlet solenoid system.
BRC-65, "
ABS Actuator
Relay or ABS Motor
Relay Power System"
FR LH OUT ABS SOL
[C1121]When the control unit detects an error in the front left outlet solenoid system.
FR RH IN ABS SOL
[C1122]When the control unit detects an error in the front right inlet solenoid system.
FR RH OUT ABS SOL
[C1123]When the control unit detects an error in the front right outlet solenoid system.
RR LH IN ABS SOL
[C1124]When the control unit detects an error in the rear left inlet solenoid system.
RR LH OUT ABS SOL
[C1125]When the control unit detects an error in the rear left outlet solenoid system.
RR RH IN ABS SOL
[C1126]When the control unit detects an error in the rear right inlet solenoid system.
RR RH OUT ABS SOL
[C1127]When the control unit detects an error in the rear right outlet solenoid system.
EMERGENCY BRAKE
[C1153]When the ABS actuator and electric unit (control unit) malfunctions (pressure
increase is too much or too little).BRC-67, "
ABS Actuator
and Electric Unit (Con-
trol Unit) 2"
ENGINE SIGNAL 1
[C1130]
Major engine components are malfunctioning.BRC-63, "
Engine Sys-
tem"
ENGINE SIGNAL 2
[C1131]
ENGINE SIGNAL 3
[C1132]
ENGINE SIGNAL 4
[C1133]
ENGINE SIGNAL 5
[C1134]
ENGINE SIGNAL 6
[C1136]
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-67, "
CAN Commu-
nication System"
(Note 2) Display item Malfunction detecting condition Check item

TROUBLE DIAGNOSIS
BRC-55
[TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: 2006 November2007 350Z
Data MonitorNFS000HH
DISPLAY ITEM LIST
×: Standard –: Not applicable : Option
Item (Unit)SELECT MONITOR ITEM
Remarks
ECU INPUT
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
FR LH SENSOR
[km/h (MPH)]××Wheel speed calculated by front LH wheel
sensor signal is displayed.
FR RH SENSOR
[(km/h (MPH)]××Wheel speed calculated by front RH wheel
sensor signal 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 signal 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 rear 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 dis-
played.
STOP LAMP SW
(ON/OFF)××Stop lamp switch (ON/OFF) status is dis-
played.
MOTOR RELAY
(ON/OFF)–×ABS motor relay (ON/OFF) condition is dis-
played.
ACTUATOR RLY
(ON/OFF)–×ABS actuator relay (ON/OFF) status is dis-
played.
ABS WARN LAMP
(ON/OFF)–×ABS warning lamp (ON/OFF) status is dis-
played.
OFF LAMP
(ON/OFF)–×TCS OFF indicator lamp (ON/OFF) status is
displayed.
OFF SW
(ON/OFF)××TCS OFF switch (ON/OFF) status is dis-
played.
SLIP LAMP
(ON/OFF)–×SLIP indicator lamp (ON/OFF) status is dis-
played.
BATTERY VOLT
(V )××The voltage supplied to the ABS actuator and
electric unit (control unit) is displayed.
GEAR
(A/T model)××The gear position determined from the A/T
PNP switch signal is displayed.
ENGINE SPEED
(rpm)××Engine speed status determined from the
CAN communication signal is displayed.

TROUBLE DIAGNOSIS
BRC-57
[TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: 2006 November2007 350Z
Active TestNFS000IO
CAUTION:

Do not perform active test while driving.

Make sure to completely bleed air from the brake system.

The ABS and brake warning lamps turn on during the active test.
NOTE:

When the active test is conducted while depressing the pedal, the pedal depression amount will change,
but this is normal.

Approximately 10 seconds after the operation is begun, “TEST STOP” will be displayed.
TEST ITEM
Solenoid valve
CAUTION:
The example shown is for the front right wheel. The procedure for the other wheels is the same as
given below.
For ABS solenoid valve, touch “UP”, “KEEP”, and “DOWN”.Then use screen monitor to check that solenoid
valve operates as shown in the table below.
*: ON for 1 to 2 seconds after the touch, and then OFF
ABS Motor
Touch “ON”, “OFF” on the display screen and make sure the ABS motor relay is operating as shown in the
table below.
Correct and Quick DiagnosisNFS00036
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-53, "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.

TCS/ABS is a system that uses electronic control to perform brake control and engine power control.
Therefore, phenomena like those shown in the following table may occur, but this is because the system is
working normally.
OperationABS solenoid valve
UP KEEP DOWN
FR RH IN SOL OFF ON ON
FR RH OUT SOL OFF OFF ON*
Operation ON OFF
MOTOR RELAY ON OFF
ACTUATOR RLY ON ON
Symptom Symptom description Result
Motor operation noiseThis is the sound of the motor operating inside ABS actuator and electric unit
(control unit), and there may be some low sounds while TCS or ABS is oper-
ating.
Normal
Just after the engine starts, the motor operating noise may be heard. This is
a normal status of the system operation check.