2007 NISSAN 350Z brake fluid

TROUBLE DIAGNOSIS FOR SYSTEM
BRC-121
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
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

BRC-122
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2006 November2007 350Z
2. CHECK CONNECTOR
1. Disconnect brake fluid level switch connector and VDC/TCS/ABS control unit connector and check termi-
nal for deformation, disconnection, looseness, and so on. If there is any non-standard condition, repair or
replace the terminal.
2. Securely 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 3.
3. CHECK HARNESS BETWEEN THE BRAKE FLUID LEVEL SWITCH AND THE VDC/TCS/ABS CON-
TROL UNIT
1. Turn ignition switch OFF and disconnect brake fluid level switch
connector, VDC/TCS/ABS control unit, connectors.
2. Check continuity between brake fluid level switch connector E44
and VDC/TCS/ABS control unit connector B114.
OK or NG
OK >> Connect connectors and conduct a VDC/TCS/ABS con-
trol unit self-diagnosis.
NG >> If the open or short in harness, repair or replace the harness.
CAN Communication SystemNFS0004Q
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn ignition switch OFF, disconnect the VDC/TCS/ABS control unit connector, and check the terminal for
deformation, disconnection, looseness, and so on. If there is a malfunction, repair or replace the terminal.
2. Reconnect connector to perform self-diagnosis.
Is
“CAN COMM CIRCUIT” displayed in the self-diagnosis display items?
YES >> Print out the self-diagnostic results, and refer to LAN-48, "CAN System Specification Chart" .
NO >> Connector terminal connection is loose, damaged, open, or shorted.
Component InspectionNFS0004R
VDC OFF SWITCH

Turn ignition switch OFF, and disconnect the VDC OFF switch
connector M9, and check the continuity between terminals 1 and
2.
VDC/TCS/ABS control unit Brake fluid level switch Continuity
401Yes
Ground No
Ground 2 Yes
SFIA1898E
1 - 2 :Continuity should exist when pushing the
switch.
continuity should not exist when releasing
the switch.
SFIA1899E

BRC-124
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2006 November2007 350Z
TROUBLE DIAGNOSIS FOR SYMPTOMSPFP:00007
Excessive ABS Function Operation FrequencyNFS0004S
1. CHECK START
Check brake force distribution.
OK or NG
OK >> GO TO 2.
NG >> Check brake system
2. CHECK FRONT AND REAR AXLE
Make sure there is no excessive play in the front and rear axles.
OK or NG
OK >> GO TO 3.
NG >> Repair.
3. CHECK WHEEL SENSOR AND SENSOR ROTOR
Wheel Sensor Inspection

Wheel sensor mount and damage inspection

Sensor rotor mount and damage inspection

Wheel sensor connector connection inspection

Wheel sensor harness inspection
OK or NG
OK >> GO TO 4.
NG >>

Replace wheel sensor or sensor rotor.

Repair harness.
4. CHECK ABS WARNING LAMP DISPLAY
Make sure the warning lamp turns off approximately 1 sec. After the ignition switch is turned on or when driv-
ing.
OK or NG
OK >> Normal
NG >> Perform self-diagnosis. Refer to BRC-96, "
OPERATION PROCEDURE" .
Unexpected Pedal ReactionNFS0004T
1. CHECK BRAKE PEDAL STROKE
Check brake pedal stroke.
Is the stroke too big?
YES >>
Bleed air from the brake piping.

Check the brake pedal, brake booster, and master cylinder mount for play, looseness, and
brake system for fluid leaks, etc. If any malfunctions are found, make repair.
NO >> GO TO 2.
2. CHECK FUNCTION
Disconnect the VDC/TCS/ABS control unit connector and make sure the braking force is sufficient when the
ABS in not operating. After the inspection, reconnect the connector.
OK or NG
OK >> GO TO 3. CHECK WHEEL SENSOR AND SENSOR ROTOR in BRC-124, "Excessive ABS Func-
tion Operation Frequency" .
NG >> Check brake system.