Renault 1992 ANTI THEFT SYSTEM R21, Руководство по применению

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3.6
GENERAL OPERATION
Type 'E' Infrared Remote Control Rolling Code - Diesel
This system uses a combined immobiliser and central door locking control unit with a re-
mote infrared transmitter contained in the plastic keyhead. The transmitted code is rolling
to reduce the chances of the code being captured and used to enter the vehicle. The
code when received by the control unit receiver it will generate a door open signal and
simultaneously pass the code to the Coded Solenoid Valve. The Coded Solenoid Valve
compares the received code against a stored code and if verified it will allow the fuel to
the engine. This type is for diesel only vehicles and will allow up to four seven keys to be
used dependent upon the type of shielding on the Coded Solenoid Valve.
Type 'F' Key Recognition - No Infrared Remote - Diesel
This system uses key recognition only with no remote control of entry. A transponder in
the keyhead reacts to a transmitted signal from a coil wrapped around the ignition key
barrel. If the transponder code is the same as the stored code the Coded Solenoid VAlve
receives a signal to allow the engine to run. This type is for diesel only vehicles and will
allow up to four or seven keys to be used depending upon the type of shielding on the
Coded Solenoid Valve.
Type 'G' Key Recog IR Rolling Code - 2 ECMs - Petrol/Diesel
This system has both Infrared Remote Control and Key Recognition but have a separate
control for each function. There is no interaction between the two controllers except thst
they share common 'K' & 'L' diagnostic lines to the DLC and the Electric Door Button has
an input to both to allow the code to be entered manually. This systems appears in both
petrol and diesel vehicles and up to seven keys can be used.
Type 'H' Key Recog IR Rolling Code - 2 ECMs - Petrol/Diesel
Types 'H' and 'G' are exactly similar in their functionality but Type 'H' has a single inte-
grated control unit.