climate control RENAULT SCENIC 2008 J84 / 2.G Electrical Equipment - Multiplexing Workshop Manual

88B - 6
MULTIPLEXING
Fault finding - Introduction
88B
V4 MR-372-J84-88B050$200_eng.mif
MULTIPLEXING
Multiplexing enables signals to be sent between different computers on the vehicle, such as:
1UPC.
2Injection computer.
3BVA computer.
4LPG or CNG computer.
5ABS/ESP computer.
6UCH.
7Electric steering column lock.
8Automatic parking brake computer.
9Parking distance control computer (depending on version).
10 Electric power-assisted steering system.
11 Instrument panel.
12 Diagnostic socket.
13 ITS or Multimedia interface unit (depending on version).
14 Climate control computer.
15 Driving school unit (depending on vehicle).
16 Airbag/pretensioner computer.
MR-372-J84-88B050$200_eng.mif

MULTIPLEXING
Fault finding - Operating diagram
88B - 7
88B
V4 MR-372-J84-88B050$300_eng.mif
MULTIPLEXING
Fault finding - Operating diagram
1UPC.
2Injection computer.
3BVA computer.
4LPG or CNG computer.
5ABS/ESP computer.
6UCH.
7Electric steering column lock.
8Automatic parking brake computer.
9Parking distance control computer (depending on
version).
10Electric power-assisted steering system.
11Instrument panel.
12Diagnostic socket.
13ITS or Multimedia interface unit (depending on
version).
14Climate control computer.
15Driving school unit (depending on vehicle).
16Airbag/pretensioner computer.
MR-372-J84-88B050$300_eng.mif

88B - 12
MULTIPLEXING
Fault finding - Configuration
88B
V4 MR-372-J84-88B050$600_eng.mif
Configuration screen
Make sure that the information displayed on the two tabs is correct.
The same configuration information for the two computers is essential for displaying the network topology.
Computer Multiplex network configurationConfiguration of computers that
can support fault finding
Injection PRESENT YES
ABS or ABS/ESP PRESENT YES
UCH PRESENT YES
Automatic gearbox connection PRESENT or ABSENT (option) YES or NO (option)
Instrument panel PRESENT YES
LPG PRESENT or ABSENT (option) YES or NO (option)
Steering lock PRESENT NO
Electric power-assisted steering PRESENT YES
Protection and Switching Unit PRESENT YES
Climate control (regulated) PRESENT or ABSENT (option) YES or NO (option)
Central Communication Unit* PRESENT or ABSENT (option) YES or NO (option)
Driving school unit PRESENT or ABSENT (option) NO (cannot support fault finding)
Airbag PRESENT YES
Automatic parking brake PRESENT or ABSENT (option) YES or NO (option)
Parking Distance Control** PRESENT or ABSENT (option) YES or NO (option)
Xenon bulbs ABSENT YES or NO (option)
Radio*** ABSENT YES
Multimedia interface*** PRESENT YES
*IMPORTANT:
NAV 4R ABSENT YES
ITS PRESENT YES
Others ABSENT NO