In this topic, we will take a
comprehensive look at repairing the BSI of Peugeot and Citroen cars. We will
divide the topic into several parts so that we can better understand this unit
and how to repair it.
introduction
BSI in the multiplex structure has the
role of establishing communication between all the electronic control units in
the network
The module is controlled by a processor
and a fuse. In addition, BSI has the task of supporting its sub-components
has that these duties include:
Main network power supply and
communication between diagnostic devices and electronic control units of VAN
network.
Electrical control and management of
electronic control units of VAN network.
Communication between the electronic
control units in the VAN and CAN network.
parts of BSI
The BSI
has the following two sections, which include the following:
Section A (electronic circuits of
microprocessors and electronic controller in the form of low current).
Section B high current electrical
circuits, power relays and protective fuses.
Section A of BSI
In this section, the ICs are marked with
a number, which the user can refer to the table related to the defects caused
by.
The ICs have been notified and the user
can fix the mentioned defects.
Note: To get information about numbered
parts, you should refer to the table on the next page
|
IC number |
Defective
parts |
|
IC N 1 |
If the oil level does not show, this IC
must be replaced |
|
IC N 2 |
Guide
ICs rarely fail or burn out The
guide IC has a software lock, which is due to short circuit and the use of
non-standard lamps Standard,
the IC is locked |
|
IC N 3 |
If the crystal is damaged, the following
errors occur: 1- The back of the amp is lit and the hand
of the amps does not work 2- The headlights turn on 3- The wiper motor, heater and rear window
heater do not work 4- The car does not start |
|
IC N 4 |
If the
small lights do not turn on, this IC must be replaced |
|
IC N 5 |
If the IC is damaged, the following errors
occur: 1- The check light does not turn on 2- The car does not start |
|
IC N 6 |
If the
IC is damaged, the following errors occur: 1- The
connection of CAN-2 network behind the amp is turned on and the hand of the
amps does not work 2- The
headlights turn on 3- The
wiper motor, heater and rear window heater do not work 4- The
car does not start 5- The
horn does not work |
|
IC N 7 |
If the IC is damaged, the following errors
occur: 1- disconnection with the screen and ISU 2- disconnection with the back of the amp 3- Disconnecting from COM 2000-4 node,
turning on the light of the heater panel 4- The car does not start |
|
IC N 8 |
If the
compressor does not work, first do the following steps: 1 - First,
connect the BSI to diagnostic device and inter to function test and then
press the function test button to operate the compressor . If the compressor did not work. Configure the BSI. 2 - If
the compressor configuration does not work, disassembled the BSI and
troubleshoot the device to test it. 3 - If
BSI is disassembled , and the compressor does not work, the IC must be
replaced. 4 - If
the air compressor IC does not work after replacing, one of the following
items should probably be checked ·
compressor magnet does not work ·
The air conditioner gas
cartridge is defective ·
The air conditioner or AC panel
is defective |
|
IC N 9 |
If the IC is damaged, the following errors
occur: ·
The front and back lights of the
amp stay on ·
The car does not start ·
The window lifter and wiper
motor do not work ·
The diagnostic device does not
enter the BSI node |
|
IC N 10 |
If the
IC is damaged and the connection with the capacitor is disconnected, the
following errors will occur: ·
BSI node CAN network
disconnection. ·
Display panel disconnection ·
The back of the amp is turned on
and the amp hand does not work ·
The car does not start |
|
IC N 11 |
If the roof light does not turn on, this IC
must be replaced |
|
IC N 12 |
If the
IC is damaged, the following errors occur: ·
Central locking and wiper motor
do not work ·
The diagnostic device does not
enter the BSI node |
|
IC N 13 |
Connect the capacitor to pin 39 of the IC If the IC is damaged, the following errors
occur: ·
The glass lifters and the rear
window heater do not work |