VLC5501 Vapormatic Immobiliser Installation Manual
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Immobiliser blocker module wiring diagram with relays:
Both immobiliser blockers must be installed.
The keypad must transmit a signal to both immobiliser blockers before the vehicle will start, even if only
one
circuit is being
blocked. When only one circuit is being blocked, the spare secondary blocker wires marked (7), should be taped up and insulated
out of harms way.
Earth wire (-):
Must be firmly secured to the vehicle’s chasses.
Power wire (+):
Must be connected to an ignition live via a 3 Amp fuse supplied. Example, with the ignition is switched off
the blocker feed wire marked (+) must be at 0 voltage. With the ignition in the ‘ON’ position the blocker
feed wire marked (+) must receive from 8 to 16 Volts D.C.
NOTE: Please read “Start Position” below.
Blocking wires (7):
Two wires are marked with (7), these are used to power the relay.
Relay wiring:
The relay works like a switch to cut power to the blocking circuit. Connect the vehicle wire you want to
break to terminals
30
(in) and
87
(out) on the relay. Connect the immobiliser blocking wire marked (7) to
terminal (85) and earth to (86). The spare blocking wire marked (7) should be connected to the ignition
live. Please refer to the wiring diagram above.
Fuse Holders:
The Fuse holders supplied are of a special automotive anti-vibration type, therefore each fuse is held
tighter than normal.
Example:
Ignition off:
No power to the two blockers or keypad. The contacts inside the immobiliser blockers are normally closed
(N/C), therefore when the ignition is switched off the blocker allows continuity through the two wires
marked (7).
Ignition
on:
When the ignition is switched on, the immobiliser blockers become live, instantly opening the contacts
breaking the continuity through wires marked (7), thus breaking the circuit – not energising the relay.
Authorisation:
When the immobiliser blockers receives a confirmation signal from the Keypad or Keypad Override Disc,
the immobiliser switches off, therefore energising the relays and allowing power supply to the vehicles
electrical network.
Start position:
With the ignition in the start position the voltage supply to the blocker feed wire marked (+) must not
decay below 8 volts when the engine is cranking.
Some ignition circuits are not live when the ignition
key is in the start position, if the voltage decays below 8 Volts, the blockers will drop out causing the
vehicle not to start.
NOTE: Maximum 12 Amp current draw on blocking circuit. If the
current draw exceeds 12A you must use 30 Amp relays supplied.
NOTE: For installations where only one circuit is being blocked, the
secondary immobiliser blocker must be wired in for the system to work
correctly. Tape up and insulate out of harms way, wires marked (7) for
‘blocking circuit 2’.
****All joints must be soldered, do not use Scotch locks.*****
