ABS NISSAN TEANA 2003 Workshop Manual

SYSTEM DESCRIPTION
BRC-43
[VDC/TCS/ABS]
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BRC

Hydraulic Circuit DiagramBFS000DV
CAN CommunicationBFS000G2
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 on 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-49, "
CAN Sys-
tem Specification Chart" .
SFIA2092E

BRC-44
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS

TROUBLE DIAGNOSISPFP:00004
How to Perform Trouble Diagnosis Quick and Accurate RepairBFS000DX
INTRODUCTION

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 symptoms, and understand them fully.
Ask the customer about his/her complaints carefully. In some
cases, it will be necessary to check symptoms by driving vehicle
with the customer.
NOTE:
Customers are not professionals. Do not assume “maybe cus-
tomer means...” or “maybe the customer mentioned this symp-
tom”.

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
symptoms based on an interview with customers and past
examples. Do not perform an 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 connec-
tors by hand. When repairs are performed without any symptom
check, no one can judge if malfunction has actually been elimi-
nated.

After diagnosis, make sure to perform “erase memory”. Refer to
BRC-58, "
ERASE MEMORY" .

For an intermittent malfunction, move harness or harness connector by hand to check poor contact or
false open circuit.

Always read “GI section” to confirm general precautions. Refer to GI-4, "General Precautions" .
EFJ0028D
SEF233G

TROUBLE DIAGNOSIS
BRC-45
[VDC/TCS/ABS]
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BRC

DIAGNOSIS FLOW CHART
SFIA3272E

BRC-46
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS

ASKING COMPLAINTS

Complaints vary depending on the person. It is important to clar-
ify the customer's actual remarks.

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

It is also important to use diagnosis sheet so as not to miss vital
information.
EXAMPLE OF DIAGNOSIS SHEET
SBR339B
SFIA3265E

TROUBLE DIAGNOSIS
BRC-47
[VDC/TCS/ABS]
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BRC

Component Parts LocationBFS000DY
SFIA2517E

BRC-48
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS

SchematicBFS000DZ
TFWM0250E

TROUBLE DIAGNOSIS
BRC-49
[VDC/TCS/ABS]
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BRC

Wiring Diagram — VDC —BFS000E0
TFWM0251E

BRC-50
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS

TFWM0252E

TROUBLE DIAGNOSIS
BRC-51
[VDC/TCS/ABS]
C
D
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MA
B
BRC

TFWM0253E

BRC-52
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS

TFWM0103E