8
1.2 Parts of the Interlock
Head Unit
The head unit is mounted
on the vehicle dash and
connected to the relay via
the curly cord.
Relay
The relay is mounted under
the vehicle dash and isn't
visible to the driver.
Curly Cord
The curly cord connects the
head unit to the relay.
Retainer Clips
These clips secure the curly
cord to the head unit.
Mouthpiece
Mouthpieces are attached
to the head unit.
