Installation
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Installation instructions
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SCANIA Interlock
®
7x00
25
4.4.4
Connecting the earth lead
CAUTION
Fire hazard!
►
A clean and reliable connection between the leads must be ensured!
1. Prepare earth lead of the control unit (black) for connection with vehicle
earth.
2. Connect earth lead using a self-tapping screw, e.g., to the vehicle chassis,
or join to another earth wire in the cable harness – for example, with cable
connectors.
4.4.5
Connecting the start clearance lead
Do not trim the wires of the vehicle so that they can be used again after
deinstallation of the control unit.
1. Cut the lead for the floating switching output for clearance to start (e.g.,
starter relay).
2. Connect earth lead using a self-tapping screw, e.g., to the vehicle chassis,
or join to another earth wire in the cable harness – for example, with cable
connectors.
3. Push Dräger thermo-shrinkable tubing over the joint and shrink by heat
application.
The Dräger thermo-shrinkable tubing means that any future change or
manipulation of the joint can be detected.
4.4.6 Connecting
Terminal
15
The instrument must be connected to an ignition lead of the ignition switch that
remains live when the vehicle is started up ("START" position of the ignition
switch) and when the ignition is switched on ("IGNITION" position of the ignition
switch).
1. Cut ignition lead in the ignition-switch cable harness ensuring adequate
cable has been left for termination on the ignition lead (blue) on the control
unit.
2. Trim, as necessary, ignition lead on the control unit (blue).
3. Place Dräger thermo-shrinkable tubing on the ignition lead.
4. Join the control unit ignition cable (blue) to the two separated ends of the
cable harness ignition wire to ensure reliable contact.
5. Push Dräger thermo-shrinkable tubing over the joint and shrink by heat
application.
The Dräger thermo-shrinkable tubing means that any future change or
manipulation of the joint can be detected.
4.4.7
Connecting the positive supply lead
Some vehicles have positive wires whose current is switched off some time
after the vehicle is locked. Always use a positive wire which is constantly under
voltage, as otherwise the buffer battery in the control unit will be drained.
1. Choose a suitable connection position in the positive supply lead (Terminal
30) of the ignition-switch cable harness, ensuring adequate cable has been
left for termination of the positive supply lead (red) on the control unit.
2. Connect the positive lead from the ignition switch cable harness to the
positive connecting cable on the control unit (red) to ensure correct contact.
4.4.8
Connecting the D+ lead
On vehicles with a multi-stage ignition switch and a voltage of 12 V at Position 1
after the engine is switched off:
CAUTION
Risk of damage to the device!
►
If "Start recognition type 3 (alternator)" is selected, connect the AUX 3 input
(PIN 16) of the control unit to the output of the alternator (D+ lead).
●
Additionally, select the "Start recognition type 3 (alternator)" option for
recognition of movement or acceleration. Otherwise, Interlock cannot
reliably detect the switching off of the engine and it remains in the "Safe
journey!" status.
✓
After a successfully passed breath sample, the device goes into the free
start time and after the engine starts, attains the "Safe journey!" status. After
the engine is switched off, the device reverts to the free start time.
If the device does not switch to the free start time after the engine is
switched off, the D+ lead is either not connected or has not been properly
connected.
