2007 NISSAN 350Z ignition

BRC-110
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2006 November2007 350Z
OK or NG
OK >> INSPECTION END
NG >> If the pressure sensor is damaged or malfunctioning, replace the VDC actuator (pressure sensor it
built in).
Steering Angle Sensor SystemNFS0004H
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSIS RESULTS
Check self-diagnosis results.
Is the above displayed in the self-diagnosis item?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK CONNECTOR
1. Disconnect steering angle sensor connector and VDC/TCS/ABS control unit connector and check termi-
nals for deformation, disconnection, looseness, and so on. If there is an error, repair or replace the termi-
nal.
2. 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 STEERING ANGLE SENSOR HARNESS
1. Check CAN communication system. Refer to BRC-122, "
CAN Communication System" .
2. Turn ignition switch OFF and disconnect steering angle sensor
connector M22 and VDC/TCS/ABS control unit connector B114.
3. Check continuity between VDC/TCS/ABS control unit connector
terminal 2 and steering angle sensor connector terminal 3.
OK or NG
OK >> GO TO 4.
NG >> If the open or short in harness, repair or replace the har-
ness.
4. CHECK DATA MONITOR
1. Connect steering angle sensor and VDC/TCS/ABS control unit connectors.
2. Conduct “DATA MONITOR” of the “STR ANGLE SIG” to check if the status is normal.
OK or NG
OK >> Re-conduct VDC/TCS/ABS control unit self-diagnosis.
NG >> Replace spiral cable (steering angle sensor) and adjust neutral position of steering angle sensor.
Refer to BRC-79, "
Adjustment of Steering Angle Sensor Neutral Position" .
Self-diagnosis results
ST ANG SEN CIRCUIT
VDC/TCS/ABS control unit Steering angle sensor Continuity
23Yes
SFIA2445E
Steering condition Data monitor
Straight-ahead Approx. 0°
Turn wheel to the right by 90 °Approx. + 90°
Turn wheel to the left by 90 °Approx. - 90°

BRC-112
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2006 November2007 350Z
3. CHECK YAW RATE/SIDE G SENSOR HARNESS
1. Turn ignition switch OFF and disconnect yaw rate/side G sensor
connector M51 and VDC/TCS/ABS control unit connector B114.
2. Check continuity between VDC/TCS/ABS control unit vehicle
side connector and yaw rate/side G sensor vehicle side connec-
tor.
OK or NG
OK >> GO TO 4.
NG >> If the open or short in harness, repair or replace the harness.
4. CHECK YAW RATE/SIDE G SENSOR
1. Connect yaw rate/side G sensor and VDC/TCS/ABS control unit connectors.
2. Use “DATA MONITOR” to check if the yaw rate/side G sensor are normal.
OK or NG
OK >> INSPECTION END
NG >> Replace the malfunctioning yaw rate/side G sensor, and then re-conduct the VDC/TCS/ABS con-
trol unit self-diagnosis.
SFIA1890E
VDC/TCS/ABS control unit Yaw rate/side G sensor Continuity
18 5
Ye s 34 3
77 2
78 1
79 4
80 6
Vehicle statusYaw rate sensor
(Data monitor standard)Side G sensor
(Data monitor standard)
When stopped - 4 to + 4 deg/s
- 1.1 to + 1.1 m/s
2
Right turn Negative value Negative value
Left turn Positive value Positive value

BRC-114
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2006 November2007 350Z
3. CHECK SOLENOID INPUT SIGNAL
1. Turn ignition switch OFF and disconnect VDC/TCS/ABS control
unit connector.
2. Check resistance between VDC/TCS/ABS control unit connec-
tor and ground.
OK or NG
OK >> Check the VDC/TCS/ABS control unit power system. Refer to BRC-120, "VDC/TCS/ABS Control
Unit Power and Ground Systems" .
NG >> GO TO 4.
PFIA0287E
VDC/TCS/ABS control unit Ground Resistance value
26
—6.0 – 11 Ω 5
6
53
55
3.0 – 5.0 Ω 3
4
25
49
6.0 – 11 Ω
50
54
3.0 – 5.0 Ω
52

TROUBLE DIAGNOSIS FOR SYSTEM
BRC-117
[VDC/TCS/ABS]
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BRC
Revision: 2006 November2007 350Z
4. CHECK ABS MOTOR AND MOTOR RELAY HARNESS
1. Turn ignition switch OFF and disconnect VDC/TCS/ABS control
unit connector B114 and VDC relay box connector E47.
2. Check continuity between VDC/TCS/ABS control unit connector
and VDC relay box vehicle side connector.
3. Check if the actuator motor operates when a 12 V voltage is
applied to the VDC relay box connector E222 terminal 12.
CAUTION:
Operate the actuator motor for 4 seconds or less to prevent
heat generation.
OK or NG
OK >> GO TO 5.
NG >> The actuator motor or actuator motor circuit open or short in harness. Repair or replace the actua-
tor motor or actuator motor circuit harness.
5. CHECK ABS MOTOR RELAY
ABS motor relay independent inspection. Refer toBRC-123, "
ABS MOTOR RELAY AND ACTUATOR RELAY"
.
OK or NG
OK >> Replace VDC actuator assembly.
NG >> Replace VDC relay box.
VDC/TCS/ABS control unit VDC relay box Continuity
20 4
Ye s
78
SFIA1893E
PFIA0288E

BRC-118
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2006 November2007 350Z
Actuator Relay SystemNFS0004L
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 B114 and
check 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 ACTUATOR RELAY POWER SYSTEM
1. Turn ignition switch OFF and disconnect VDC relay box connec-
tor 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 harness
connector E48 terminal 9 is open or shorted. Repair the
circuit.
4. CHECK ACTUATOR RELAY HARNESS
1. Disconnect VDC/TCS/ABS control unit connector B114.
2. Check continuity between VDC/TCS/ABS control unit connector
and VDC relay box connector E47.
OK or NG
OK >> GO TO 5.
NG >> Open or short in harness. Repair or replace the harness.
5. CHECK ACTUATOR RELAY
Independently check VDC actuator relay. Refer to BRC-123, "
ABS MOTOR RELAY AND ACTUATOR RELAY"
.
OK or NG
OK >> Replace VDC actuator assembly.
NG >> Replace VDC relay box.
Self-diagnosis results
MAIN RELAY
VDC relay box Ground Voltage
9 — Battery voltage (Approx. 12 V)
SFIA1894E
VDC/TCS/ABS control unit VDC relay box Continuity
25
Ye s
36 7
SFIA1895E

TROUBLE DIAGNOSIS FOR SYSTEM
BRC-119
[VDC/TCS/ABS]
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BRC
Revision: 2006 November2007 350Z
Stop Lamp Switch SystemNFS0004M
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 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
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

BRC-120
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
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 >> Connect the connectors and conduct a VDC/TCS/ABS control unit self-diagnosis.
NG >> Open or short in harness. Repair or replace the harness.
VDC/TCS/ABS Control Unit Power and Ground SystemsNFS0004N
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSIS RESULTS
Check self-diagnosis results.
Is the above displayed in the self-diagnosis item?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK CONNECTOR
1. Disconnect VDC/TCS/ABS control unit connector and 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 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.
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
Self-diagnosis results
BATTERY VOLTAGE [ABNORMAL]

TROUBLE DIAGNOSIS FOR SYSTEM
BRC-121
[VDC/TCS/ABS]
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BRC
Revision: 2006 November2007 350Z
3. CHECK VDC/TCS/ABS CONTROL UNIT POWER AND GROUND CIRCUIT
1. Disconnect VDC/TCS/ABS control unit connector B114.
2. With the ignition switch turned on and off, check voltage
between VDC/TCS/ABS control unit connector and ground.
3. Check continuity between VDC/TCS/ABS control unit and
ground.
OK or NG
OK >> Check battery (terminal looseness, low voltage, etc.) For
any non-standard condition. If any non-standard condi-
tion exists, recharge or replace battery as necessary.
NG >> The corresponding harness circuit is open or shorted.
Repair the circuit.
VDC/TCS/ABS Control Unit 2NFS0004O
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSIS RESULTS
Check self-diagnosis results.
When any item other than “EMERGENCY BRAKE” is indicated in self-diagnosis display, follow the instructions
below.
CAUTION:
“EMERGENCY BRAKE” is indicated when control unit itself is detected as an error. If this display item
is indicated, replace control unit.
Is the above displayed in the self-diagnosis display items?
YES >> Replace VDC/TCS/ABS control unit and re-conduct the self-diagnosis.
NO >> INSPECTION END
Brake Fluid Level Switch SystemNFS0004P
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSIS RESULTS
1. Check brake reservoir tank fluid level. If the level is low, add brake fluid.
2. Erase the self-diagnosis results and check self-diagnosis results.
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO >> INSPECTION END
Signal name VDC/TCS/ABS control unit Ground Voltage
Power supply 1 —Battery voltage
(Approx. 12 V)
SFIA1903E
Signal name VDC/TCS/ABS control unit Ground Continuity
Ground 28, 29 — Yes
SFIA1897E
Self-diagnosis results
EMERGENCY BRAKE
Self-diagnosis results
BR FLUID LEVEL LOW