relay NISSAN 350Z 2007 Z33 Brake Control System User Guide

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]
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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]
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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.

TROUBLE DIAGNOSIS FOR SYSTEM
BRC-65
[TCS/ABS]
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Revision: 2006 November2007 350Z
ABS Actuator Relay or ABS Motor Relay Power SystemNFS0003C
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, check terminal to see if it is deformed,
disconnected, loose, etc., and if there is an error, repair or replace the terminal.
2. Securely reconnect the connector and then perform self-diagnosis.
Is the result of self-diagnosis normal?
YES >> The connector terminal contact is loose, damaged, open or shorted.
NO >> GO TO 3.
3. CHECK ABS ACTUATOR RELAY OR ABS MOTOR RELAY POWER CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector E51.
2. For ABS actuator relay, measure the voltage between the con-
nector terminal 1 and ground. For ABS motor relay, measure the
voltage between connector terminal 15 and ground.
OK or NG
OK >> GO TO 4
NG >> Error in the circuit between battery and ABS actuator
and electric unit (control unit). Repair the circuit.
4. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT
Check continuity between ABS actuator and electric unit (control
unit) connector and ground.
OK or NG
OK >> Replace ABS actuator and electric unit (control unit).
NG >> Open or short in harness. Repair or replace the harness.
Self-diagnosis results
IN ABS SOL
OUT ABS SOL
PUMP MOTOR
MAIN RELAY
ABS actuator and electric unit (control unit) Ground Voltage
1, 15 —Battery voltage
(Approx. 12 V)
SFIA1882E
ABS actuator and electric unit (control unit) Ground Continuity
16, 30 — Yes
SFIA1883E

BRC-94
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
Control Unit Input/Output Signal StandardNFS00049
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 SENSORVehicle 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
ABS WARN LAMPABS warning lamp on condition
(Note 2)ABS warning lamp ON ON
ABS warning lamp OFF OFF
OFF LAMPVDC OFF indicator lamp on con-
dition (Note 3)When the VDC OFF indicator lamp on ON
When the VDC OFF indicator lamp off OFF
OFF SWVDC OFF switch
ON-OFF statusVDC OFF switch ON
(When the VDC OFF indicator lamp on)ON
When VDC OFF switch OFF
(When the VDC OFF indicator lamp off)OFF
SLIP LAMPSLIP indicator lamp on condition
(Note 4)When SLIP indicator lamp is ON ON
When SLIP indicator lamp is OFF OFF
BATTERY VOLTBattery voltage supplied to VDC/
TCS/ABS control unitIgnition switch ON 10 - 16V
GEARDetermined gear shift position
from the A/T PNP switch signalAlways1 (M/T vehicles normally
remain at 1)
POSITIONShift position determined by the
A/T PNP switch signalAlways## (M/T vehicles normally
remain at ##)
YAW RATE SENYaw rate detected by yaw rate
sensorVehicle stopped Approx. 0 d/s
While driving -70 - 70d/s
ACCEL POS SIGThrottle open/close status (linked
to the accelerator pedal)Do not step on the accelerator pedal
(When ignition switch is on)0%
Step on the Brake pedal (When ignition
switch is on)0 to 100%
SIDE G-SENSOR Side G detected by side G sensorVehicle stopped
Approx. 0 m/s
2
While driving
-24.3 - 24.1 m/s2
ST ANGLE SIGSteering angle detected by steer-
ing angle sensorStraight-ahead condition Approx. 0°
Steering wheel turned -720 - 720°

TROUBLE DIAGNOSIS
BRC-95
[VDC/TCS/ABS]
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BRC
Revision: 2006 November2007 350Z
Note 1: Confirm tire pressure is normal.
Note 2: ON/OFF timing of ABS warning lamp
ON: Approximately 1 sec. After turning on the ignition switch or when an error is detected.
OFF: Approximately 1 sec. After the ignition switch is turned on (when system is normal).
Note 3: ON/OFF timing of VDC OFF indicator lamp
ON: Approximately 1 sec. After the ignition switch is turned on, an error is detected, or the VDC OFF switch is on
OFF: Approximately 1 sec. After the ignition switch is turned on (when system is normal) and the VDC OFF switch is off
Note 4: ON/OFF timing of SLIP indicator lamp
ON: Approximately 1 sec. After turning on the ignition switch or when an error is detected.
OFF: Approximately 1 sec. After the ignition switch is turned on (when system is normal) and the VDC/TCS function is not operating
Flashing: VDC/TCS function is active during drivingPRESS SENSORBrake fluid pressure detected by
pressure sensorDo not step on the Brake pedal (When
ignition switch is on)Approx. 0 bar
Step on the accelerator pedal
(When ignition switch is on)-40 - 300 bar
ENGINE RPM Engine runningWith engine stopped 0rpm
Engine runningAlmost in accordance with
tachometer display
SNOW MODE SWSnow mode switch
ON/OFF conditionSnow mode switch ON ON
Snow mode switch OFF OFF
CONTROL BOOSTER Boost control statusWhen control booster is operating ON
When control booster is not operating OFF
M MODE A/T manual mode status AlwaysOFF (M/T vehicles normally
remain OFF)
OD OFF SW A/T OD switch status AlwaysOFF (M/T vehicles normally
remain OFF)
PARK BRAKE SW Parking brake statusParking brake depressed ON
Parking brake not depressed OFF
USV
HSVVDC switch-over valve statusDuring actuator change-over valve
operation or during a fail-safeON
When the actuator relay operates and
the actuator change-over valve does
not operateOFF
V/R POWERActuator relay activated
(ON/OFF)When actuator relay is active (engine is
running).ON
When actuator relay is not active
(before engine starts and in fail-safe
mode).OFF
M/R OUTPUTActuator motor and motor relay
status (ON/OFF)When actuator motor and motor relay
are active (“ACTIVE TEST” with CON-
SULT-III).ON
When the actuator motor and motor
relay are not operatingOFF
FLUID LEV SWBrake fluid level sensor ON/OFF
statusWhen brake fluid level sensor is on ON
When the brake fluid level sensor is off OFF
FAIL SIGNAL Fail signal statusDuring VDC fail-safe
During TCS fail-safe
During ABS fail-safe
During EBD fail-safeON Monitor item Display ContentData monitor
ConditionReference values for normal
operation

TROUBLE DIAGNOSIS
BRC-97
[VDC/TCS/ABS]
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BRC
Revision: 2006 November2007 350Z
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-105, "
Wheel Sen-
sor 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 VDC/TCS/ABS power voltage is lower than normal. BRC-120, "
VDC/TCS/
ABS Control Unit Power
and Ground Systems"
CONTROLLER FAILURE
[C1110]When there is an internal error in the VDC/TCS/ABS control unit.BRC-107, "VDC/TCS/
ABS Control Unit 1"
PUMP MOTOR
[ C 1111 ]When the control unit detects an error in the motor or motor relay.BRC-116, "ABS Motor
and Motor Relay System"
MAIN RELAY
[C1114]When the control unit detects an error in the actuator relay system.BRC-118, "Actuator
Relay System"
ABS SENSOR
[ABNORMAL SIGNAL]
[C1115]When wheel sensor input is malfunction.BRC-105, "Wheel Sen-
sor System"
(Note 1)
STOP LAMP SW
[C1116]When a stop lamp switch open-circuit is detected.BRC-119, "
Stop Lamp
Switch System"
FR LH IN ABS SOL
[C1120]When the VDC/TCS/ABS control unit detects an error in the front
left inlet solenoid system.
BRC-113, "
Solenoid and
VDC Change-Over Valve
System"
FR LH OUT ABS SOL
[C1121]When the VDC/TCS/ABS control unit detects an error in the front
left outlet solenoid system.
FR RH IN ABS SOL
[C1122]When the VDC/TCS/ABS control unit detects an error in the front
right inlet solenoid system.
FR RH OUT ABS SOL
[C1123]When the VDC/TCS/ABS control unit detects an error in the front
right outlet solenoid system.
RR LH IN ABS SOL
[C1124]When the VDC/TCS/ABS control unit detects an error in the rear
left inlet solenoid system.
RR LH OUT ABS SOL
[C1125]When the VDC/TCS/ABS control unit detects an error in the rear
left outlet solenoid system.
RR RH IN ABS SOL
[C1126]When the VDC/TCS/ABS control unit detects an error in the rear
left inlet solenoid system.
RR RH OUT ABS SOL
[C1127]When the VDC/TCS/ABS control unit detects an error in the rear
right outlet solenoid system.

TROUBLE DIAGNOSIS
BRC-99
[VDC/TCS/ABS]
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BRC
Revision: 2006 November2007 350Z
Data MonitorNFS000HL
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)]xxWheel speed calculated by front LH wheel sen-
sor signal is displayed.
FR RH SENSOR
[km/h (MPH)]xxWheel speed calculated by front RH wheel sen-
sor signal is displayed.
RR RH SENSOR
[km/h (MPH)]xxWheel speed calculated by rear RH wheel sen-
sor signal is displayed.
RR LH SENSOR
[km/h (MPH)]xxWheel speed calculated by rear LH wheel sen-
sor signal is displayed.
FR LH IN SOL
(ON/OFF)–xFront left inlet ABS solenoid valve (ON/OFF)
status is displayed.
FR LH OUT SOL
(ON/OFF)–xFront left outlet ABS solenoid valve (ON/OFF)
status is displayed.
RR RH IN SOL
(ON/OFF)–xRear right inlet ABS solenoid valve (ON/OFF)
status is displayed.
RR RH OUT SOL
(ON/OFF)–xRear right outlet ABS solenoid valve (ON/OFF)
status is displayed.
FR RH IN SOL
(ON/OFF)–xFront right inlet ABS solenoid valve (ON/OFF)
status is displayed.
FR RH OUT SOL
(ON/OFF)–xFront right outlet ABS solenoid valve (ON/OFF)
status is displayed.
RR LH IN SOL
(ON/OFF)–xRear left inlet ABS solenoid valve (ON/OFF)
status is displayed.
RR LH OUT SOL
(ON/OFF)–xRear left outlet ABS solenoid valve (ON/OFF)
status is displayed.
STOP LAMP SW
(ON/OFF)x x Stop lamp switch (ON/OFF) status is displayed.
MOTOR RELAY
(ON/OFF)–xABS motor relay (ON/OFF) condition is dis-
played.
ACTUATOR REL
(ON/OFF)–xABS actuator relay (ON/OFF) status is dis-
played.
ABS WARN LAMP
(ON/OFF)–xABS warning lamp (ON/OFF) status is dis-
played.
OFF LAMP
(ON/OFF)–xVDC OFF indicator lamp (ON/OFF) status is
displayed.
OFF SW
(ON/OFF)x x VDC OFF switch (ON/OFF) status is displayed.
SLIP LAMP
(ON/OFF)–xSLIP indicator lamp (ON/OFF) status is dis-
played.
BATTERY VOLT
(V )xxThe voltage supplied to the VDC/TCS/ABS
control unit is displayed.
GEAR x xThe gear position determined from the A/T PNP
switch signal is displayed.
SLCT LVR POSI
(For A/T models)xxShift position determined from the A/T PNP
switch signal is displayed.
YAW RATE SEN
(d/s)xxYaw rate detected by the yaw rate sensor is dis-
played.
ACCEL POS SIG
(%)x–Throttle position status determined from the
CAN communication signal is displayed.

TROUBLE DIAGNOSIS
BRC-101
[VDC/TCS/ABS]
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BRC
Revision: 2006 November2007 350Z
Active TestNFS000IP
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.

When conducting an active test of the ABS function, select the main item for each test item. In addition,
when conducting an active test of the VDC/TCS function, select the item menu for each test item.

For the ABS solenoid valve, touch “UP”, “KEEP”, “DOWN” on the display screen. For the ABS solenoid
valve (ACT), touch “UP”, “ACT UP”, “ACT KEEP” and confirm that the solenoid valves (IN, OUT, USV,
HSV) operate 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 DiagnosisNFS0004B
DIAGNOSIS PRECAUTIONS

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

When replacing steering angle sensor, steering system components or suspension system components,
and when adjusting the alignment, be sure to adjust the steering angle sensor neutral position before driv-
ing. Refer to BRC-79, "
Adjustment of Steering Angle Sensor Neutral Position" .

After completing service, always erase the self-diagnosis results. Refer to BRC-96, "HOW TO ERASE
SELF-DIAGNOSIS RESULTS" .
V/R OUTPUT
(ON/OFF)––Valve relay operation signal (ON/OFF) status is
displayed.
M/R OUTPUT
(ON/OFF)––Monitor relay operation signal (ON/OFF) status
is displayed. Item (Unit)SELECT MONITOR ITEM
Remarks
ECU INPUT
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
OperationABS solenoid valve ABS solenoid valve (ACT)
UP KEEP DOWN UP ACT UP ACT KEEP
FR RH IN SOL OFF ON ON OFF OFF OFF
FR RH OUT SOL OFF OFF ON* OFF OFF OFF
USV [FR - RL] OFF OFF OFF OFF ON ON
HSV [FR - RR] OFF OFF OFF OFF ON* OFF
Operation ON OFF
MOTOR RELAY ON OFF
ACTUATOR RLY ON ON

BRC-116
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2006 November2007 350Z
ABS Motor and Motor Relay SystemNFS0004K
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSIS RESULTS
Check self-diagnosis results.
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK CONNECTOR
1. Disconnect VDC relay box connector E47, E48, E222 and VDC/TCS/ABS control unit connector and
check the terminals for deformation, disconnection, looseness, and so on. If there is an error, repair or
replace the terminal.
2. Securely reconnect the connectors and then preform self-diagnosis.
Is the result of self-diagnosis normal?
YES >> The connector terminal contact is loose, damaged, open or shorted.
NO >> GO TO 3.
3. CHECK ABS MOTOR AND MOTOR RELAY POWER SYSTEM
1. Disconnect VDC relay box connectors E48.
2. Check voltage between VDC relay box connector and ground.
OK or NG
OK >> GO TO 4.
NG >> The circuit between battery and VDC relay box terminal
10 is open or shorted. Repair the circuit.
Self-diagnosis results
PUMP MOTOR
VDC relay box Ground Voltage
10 — Battery voltage (Approx. 12 V)
SFIA1892E