2007 NISSAN 350Z ignition

TROUBLE DIAGNOSIS
BRC-95
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
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

BRC-98
[VDC/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) 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.USV LINE [FL-RR]
[C1147]When the primary side VDC change-over valve 1 circuit is open or
short-circuit.
BRC-113, "
Solenoid and
VDC Change-Over Valve
System"
USV LINE [FR-RL]
[C1148]When the secondary side VDC change-over valve 1 circuit is open
or short-circuit.
HSV LINE [FL-RR]
[C1149]When the primary side VDC change-over valve 2 circuit is open or
short-circuit.
HSV LINE [FR-RL]
[C1150]When the secondary side VDC change-over valve 2 circuit is open
or short-circuit.
PRESS SEN CIRCUIT
[C1142]Pressure sensor open-circuit. When a short-circuit is detected. Or,
when a pressure sensor error is detected.BRC-108, "
Pressure Sen-
sor System"
ST ANG SEN CIRCUIT
[C1143]When the steering angle sensor neutral point has deviated. Or,
when a steering angle sensor error is detected.BRC-110, "Steering Angle
Sensor System"
ST ANG SEN SIGNAL
[C1144]Neutral position correction of steering angle sensor is not finished.BRC-79, "Adjustment of
Steering Angle Sensor
Neutral Position"
YAW RATE SENSOR
[C1145]When a yaw rate sensor error is detected. Or, when the yaw rate
sensor circuit is open. When a short-circuit is detected.BRC-111, "Yaw Rate/Side
G Sensor System"
SIDE G - SEN CIRCUIT
[C1146]When there is an error in the side G sensor. Or, when the side G
sensor circuit is open or short-circuited.BRC-111, "Yaw Rate/Side
G Sensor System"
ENGINE SIGNAL 1
[C1130]
Major engine components malfunctioning.BRC-107, "
Engine Sys-
tem"
ENGINE SIGNAL 2
[C1131]
ENGINE SIGNAL 3
[C1132]
ENGINE SIGNAL 4
[C1133]
ENGINE SIGNAL 5
[C1134]
ENGINE SIGNAL 6
[C1135]
EMERGENCY BRAKE
[C1153]When the VDC/TCS/ABS control unit is malfunctioning (excessive
pressure increase or insufficient pressure increase).BRC-121, "
VDC/TCS/
ABS Control Unit 2"
BR FLUID LEVEL LOW
[C1155]The brake fluid level has dropped. Or, when there is a short to
ground in the circuit between the VDC/TCS/ABS control unit and
the fluid level sensor.BRC-121, "Brake Fluid
Level Switch System"
ST ANG SEN COM CIR
[C1156]CAN communication line or steering angle sensor has generated
an error.BRC-122, "CAN Commu-
nication System"
CAN COMM CIRCUIT
[U1000]When VDC/TCS/ABS control unit is not transmitting or receiving
CAN communication signal for 2 seconds or more.BRC-122, "CAN Commu-
nication System"
(Note 2) Display item Malfunction detecting condition Check item

BRC-100
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
SIDE G SENSOR
(m/s2 )x–Side G detected by the side G sensor is dis-
played.
STR ANGLE SIG
(°)x–Steering angle detected by the steering angle
sensor is displayed.
PRESS SENSOR
(bar )x–Brake hydraulic pressured detected by the
pressure sensor is displayed.
ENGINE RPM
(rpm)x–The engine speed status determined from the
CAN communication signal is displayed.
SNOW MODE SW
(ON/OFF)––Snow mode switch (ON/OFF) status deter-
mined from the CAN communication signal is
displayed.
BST OPER SIG
(ON/OFF)––Control booster operation signal (ON/OFF) sta-
tus determined from the CAN communication
signal is displayed.
M - MODE SIG
(ON/OFF)–– M mode (ON/OFF) status determined from the
CAN communication signal is displayed.
OD OFF SW
(ON/OFF)––OD cancel switch (ON/OFF) status determined
from the CAN communication signal is dis-
played.
EBD SIGNAL
(ON/OFF)– – EBD operation (ON/OFF) status is displayed.
ABS SIGNAL
(ON/OFF)– – ABS operation (ON/OFF) status is displayed.
TCS SIGNAL
(ON/OFF)– – TCS operation (ON/OFF) status is displayed.
VDC SIGNAL
(ON/OFF)– – VDC operation (ON/OFF) status is displayed.
EBD FAIL SIG
(ON/OFF)––EBD fail-safe signal (ON/OFF) status is dis-
played.
ABS FAIL SIG
(ON/OFF)––ABS fail-safe signal (ON/OFF) status is dis-
played.
TCS FAIL SIG
(ON/OFF)––TCS fail-safe signal (ON/OFF) status is dis-
played.
VDC FAIL SIG
(ON/OFF)––The VDC fail-safe signal (ON/OFF) status is
displayed.
CRANKING SIG
(ON/OFF)––Ignition switch START position signal input sta-
tus is displayed.
ASCD SIGNAL
(ON/OFF)– – ASCD (ON/OFF) status is displayed.
FLUID LEV
(ON/OFF)x–Brake fluid level sensor (ON/OFF) status is dis-
played.
PARKING BRAKE SW
(ON/OFF)x–Parking brake switch (ON/OFF) status is dis-
played.
USV FL-RR
(ON/OFF)––Primary side USV solenoid valve (ON/OFF)
status is displayed.
USV FR-RL
(ON/OFF)––Secondary side USV solenoid valve (ON/OFF)
status is displayed.
HSV FL-RR
(ON/OFF)––Primary side HSV solenoid valve (ON/OFF)
status is displayed.
HSV FR-RL
(ON/OFF)––Secondary side HSV solenoid valve (ON/OFF)
status is displayed. Item (Unit)SELECT MONITOR ITEM
Remarks
ECU INPUT
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU

TROUBLE DIAGNOSIS
BRC-103
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: 2006 November2007 350Z
ABS WARNING LAMP, VDC OFF INDICATOR LAMP, SLIP INDICATOR LAMP AND BRAKE
WARNING LAMP ON/OFF TIMING
×: ON –: OFF
Note 1:Brake warning lamp will turn on in case of operating parking brake (switch turned on) or of actuating brake fluid level switch
(brake fluid is insufficient).
Basic InspectionNFS0004C
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 VDC actuator for leaks. If there is leaking or oozing fluid, check
the following items.

If VDC 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 VDC 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 VDC 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 VDC 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 the VDC actuator body.
CAUTION:
VDC actuator cannot be disassembled.
3. Check the 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”.
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, VDC OFF INDICATOR LAMP, SLIP INDICATOR LAMP INSPECTION
1. Make sure ABS warning lamp, VDC OFF indicator lamp (when VDC OFF switch is OFF), and SLIP indica-
tor lamp turns ON approximately 1 second when the ignition switch is turned ON. If they do not, check the
VDC OFF indicator lamp and then VDC OFF switch. Refer to BRC-122, "
VDC OFF SWITCH" . Check
CAN communications. Refer to “CAN Communication Inspection”. If there are no errors with VDC OFF
switch and CAN communication system, check combination meter. Refer to BRC-122, "
CAN Communica-
tion System" .
ConditionABS warning
lampVDC OFF indi-
cator lampSLIP indicator
lampBrake warning
lamp (Note 1)Remarks
Ignition switch OFF. — — — — —
Approx. Within 1 seconds
after ignition switch is turned
ON.×××× (Note 1) —
Approx. 1 seconds after igni-
tion switch ON.———× (Note 1)Turns OFF 2 seconds
after engine starts.
VDC OFF switch is turned
ON. (VDC function is OFF.)—×—— —
VDC/TCS/ABS error.××——There is a malfunction
in VDC/TCS/ABS con-
trol unit, SLIP indicator
lamp turns off (when the
power supply or ground
circuits return an error).
×××——
When VDC/TCS is not func-
tioning normally.—××——
EBD error.××××—

BRC-104
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
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. With the engine running, make sure VDC OFF indicator lamp turns on and off when VDC OFF switch is
turned on and off. If the indicator lamp status does not correspond to switch operation, check the VDC
OFF switch system. Refer to BRC-122, "
VDC OFF SWITCH" .
4. Make sure ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp turn off 2 seconds after
the engine is started. If ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp have not
turned off 10 seconds after the engine has been started, conduct self-diagnosis of the VDC/TCS/ABS
control unit.
5. After conducting the self-diagnosis, be sure to erase the error memory. Refer to BRC-96, "
HOW TO
ERASE SELF-DIAGNOSIS RESULTS"

BRC-106
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2006 November2007 350Z
5. CHECK WHEEL SENSOR HARNESS
1. Turn ignition switch OFF and disconnect wheel sensor connec-
tor E42 (FR - LH), E27 (FR - RH), T5 (RR - RH, LH) and VDC/
TCS/ABS control unit connector B114.
2. Check continuity between terminals. (Also check the continuity
when the steering wheel is turned right and left and when the
sensor harness inside the wheel well is moved.)
OK or NG
OK >> GO TO 6.
NG >> Repair or replace harness and connector that have malfunction.
6. CHECK WHEEL SENSOR POWER SUPPLY CIRCUIT
1. Disconnect malfunctioning wheel sensor connector.
2. Turn ignition switch ON and check voltage between wheel sen-
sor harness connector power supply terminal and ground.
OK or NG
OK >> Replace wheel sensor.
NG >> Replace ABS actuator and electric unit (control unit).
SFIA3246E
Power system Signal system Ground system
WheelVDC/TCS/ABS
control unitWheel sensorVDC/TCS/ABS
control unitWheel sensorVDC/TCS/ABS
control unit
(signal)VDC/TCS/ABS
control unit
(ground)
Front RH 16 1 15 2 16, 15
28, 29 Front LH 10 1 8 2 10, 8
Rear RH 12 1 11 2 12, 11
Rear LH 14 3 13 4 14, 13
Power system : Continuity should exist.
Signal system : Continuity should exist.
Ground system : Continuity should not exist.
Wheel Wheel sensor Ground Voltage
Front RH
1
— 8 V or more Front LH
Rear RH
Rear LH 3
SFIA3399E

BRC-108
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2006 November2007 350Z
Pressure Sensor SystemNFS0004G
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 STOP LAMP SWITCH CONNECTOR
1. Disconnect stop lamp switch connector and VDC/TCS/ABS control unit connector and check the termi-
nals for deformation, disconnection, looseness, and so on. If there is an error, repair or replace the termi-
nal.
2. Securely reconnect the connectors.
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
PRESS SEN CIRCUIT
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

TROUBLE DIAGNOSIS FOR SYSTEM
BRC-109
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: 2006 November2007 350Z
4. CHECK STOP LAMP SWITCH CIRCUIT
1. Turn ignition switch OFF and disconnect VDC/TCS/ABS control
unit connector B114.
2. Check voltage between VDC/TCS/ABS control unit connector
B114 terminal 48 and ground.
OK or NG
OK >> GO TO 5.
NG >> Open or short in harness. Repair or replace the harness.
5. CHECK PRESSURE SENSOR CONNECTOR
1. Disconnect VDC actuator connector E50 and VDC/TCS/ABS control unit connector, check terminals for
deformation, disconnection, looseness, and so on. If there is an error, repair or replace the terminal.
2. Reconnect the connectors 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 6.
6. CHECK PRESSURE SENSOR HARNESS
1. Turn ignition switch OFF and disconnect VDC actuator connec-
tor E50 and VDC/TCS/ABS control unit connector B114.
2. Check continuity between VDC/TCS/ABS control unit connector
and VDC actuator connector.
OK or NG
OK >> GO TO 7.
NG >> If the open or short in harness, repair or replace the harness.
7. CHECK PRESSURE SENSOR
1. Connect VDC actuator and VDC/TCS/ABS control unit connectors.
2. Conduct “DATA MONITOR” of the “PRESS SENSOR” to check if the status is normal.
SFIA1896E
VDC/TCS/ABS control unit Ground Measurement condition Voltage
48 —Brake pedal depressed. Battery voltage (Approx. 12 V)
Brake pedal not depressed. Approx. 0 V
VDC/TCS/ABS control unit VDC actuator Continuity
69 30
Ye s 68 31
67 32
SFIA2444E
Condition Data monitor display
When brake pedal is depressed.− 40 – 300 bar
When brake pedal is released. Approx. 0 bar