PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - System operation
87B
87B-34
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - System operation
87B
87B-34V9 MR-372-J84-87B000$086.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
1.4.2.3 The electric steering column lock:
The electric steering column lock is controlled by the UCH. The steering column lock works by inserting and
removing a lock bolt. It replaces the Neimann type lock.
The steering column lock is powered outside + after ignition feed. The steering column lock supply is via the after
ignition relay (located in the Protection and Switching Unit) in its rest position, from where it is distributed to the
column lock by the UCH.
The UCH sends an unlocking request and a code to the steering column lock, via the vehicle's multiplex network.
The multiplex network unlocks the steering column lock if the code is recognised.
A sensor located on the column lock bolt informs the UCH, via the multiplex network and by wire connection, that it
is unlocked.
When unlocking is confirmed, the UCH activates the + after ignition feed via the Protection and Switching Unit. The
column lock is no longer supplied.
The column lock has a "+ after ignition feed present on vehicle" wire signal which inhibits locking while the feed is
active.
1.4.2.4 The injection computer:
The injection computer is coded and unlocks following the encrypted challenge exchange with the UCH.
1.4.2.5 The starting aerials (hands-free vehicles):
There are 3 transmitter aerials located in the passenger compartment. They are controlled by the UCH to interrogate
the card during a starting request or in confirming the presence of the card in the vehicle (e.g. after a door is
opened).
The power used allows the whole passenger compartment to be covered, including the boot. Overspill outside the
passenger compartment is minimal.
1.4.2.6 The card reader:
The card reader is connected to the UCH by a wire connection. It provides the transponder function (like a key
recognition ring). It therefore allows authentication of a Renault card without a battery.
If the card is not detected or recognised during hands-free starting, the card reader flashes to tell the customer to
insert the Renault card.IMPORTANT IMPORTANT
The steering column lock is:
–not removable when the bolt is disengaged,
–fitted with a left-hand thread self-shearing mounting bolt.
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Configurations and programming
87B
87B-51
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Configurations and programming
87B
87B-51V9 MR-372-J84-87B000$215.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Configurations and programming
1/ GENERAL INFORMATION
The engine immobiliser protection system is controlled by a RENAULT card recognition system with random rolling
code.
A coded transponder chip (operating without a battery) independent of the remote control function is built into each
of the vehicle's RENAULT Cards.
The engine immobiliser is active a few seconds after the RENAULT Card is removed from the card reader. Its status
is shown by the flashing warning light on the instrument panel and by locking of the steering column lock.
To obtain the immobiliser code, see Technical Note 5037A, Code delivery procedure.
There are two programming methods: "Not connected" to the code server mode and "connected" to the code
server mode.
–In the "not connected" mode, the CLIP diagnostic tool supplies a programming key and the user enters the
immobiliser code.
–In the "connected" mode, the CLIP diagnostic tool automatically exchanges the programming key and the
immobiliser code.
IMPORTANT
If not all of the Renault cards are available, reallocate all Renault cards later. Cards not inserted will no longer be
allocated to this vehicle.
IMPORTANT
In "not connected" mode, once the tool has issued the programming key, the user has a limited amount of time
in which to enter the immobiliser code.
If this time expires, the CLIP diagnostic tool displays the message "Time expired. Restart the procedure.
Note:
When only the UCH is replaced, there is no operation to perform on the injection computer or the steering column
lock, they retain the same immobiliser code.
IMPORTANT
Once a part is programmed with a code, it is allocated to the vehicle; the code cannot be deleted and the part
cannot be reprogrammed with another code. The programmed code cannot be erased.
IMPORTANT
In "connected" mode, the exchange of the programming key and the entry of the immobiliser code is done
automatically.
If the connection parameters are not met, "connected" mode switches automatically to "not connected" mode.
MR-372-J84-87B000$215.mif
