NISSAN 350Z 2007 Z33 Brake Control System Service Manual

SYSTEM DESCRIPTION
BRC-41
[TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: 2006 November2007 350Z
Hydraulic Circuit DiagramNFS0002X
CAN CommunicationNFS0002Y
SYSTEM DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only. Refer to LAN-48, "
CAN Sys-
tem Specification Chart" .
SFIA3263E

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-43
[TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: 2006 November2007 350Z
DIAGNOSIS FLOWCHART
SFIA3406E

BRC-44
[TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
ASKING COMPLAINTS

Complaints against malfunction vary depending on each person.
It is important to clarify customer complaints.

Ask customer about what symptoms are present and under
what conditions. Use information to reproduce symptom while
driving.

It is also important to use diagnosis sheet so as not to miss infor-
mation.
EXAMPLE OF DIAGNOSIS SHEET
SBR339B
SFIA3265E

TROUBLE DIAGNOSIS
BRC-45
[TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: 2006 November2007 350Z
Component Parts LocationNFS00030
SFIA3400E

BRC-46
[TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
SchematicNFS00031
TFWT0292E

TROUBLE DIAGNOSIS
BRC-47
[TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: 2006 November2007 350Z
Wiring Diagram — TCS —NFS00032
TFWT0377E

BRC-48
[TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
TFWT0378E

TROUBLE DIAGNOSIS
BRC-49
[TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: 2006 November2007 350Z
TFWT0295E

BRC-50
[TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
TFWT0041E