Specifications

FCS1362 Page 42 of 74 © Nov 2010
• the permanent live
• ground or earth
• ignition sense (if any)
• audio mute
• any other connections (for example CD changer, etc.)
In some cases when installing aftermarket equipment there may be wiring connectors which are not
utilised. Ensure any unused connections are fully insulated and cannot short to other components,
ground/earth or metal parts.
4.5.1.3. Warning tones & ICE
It should be noted that some vehicle models present warning tones, for example reversing sensor tones,
seatbelt warning tones, etc., through the ICE system.
• The warning tones may not be presented when the ICE is muted or audio being routed through from
the installed device
• The customer must be made aware of this prior to installation and it noted on the installation report
form
• Correct operation of warning tones should be verified during the testing of the install see section 5.3.2
4.5.1.4. Reconnecting ICE
Once the lead is fitted, before connecting the ICE, checks should now be performed to ensure the signals
and voltages shown by the tests carried out in section 4.5.1.2 (Permanent live, ignition sense, earth etc.)
are replicated accurately on the correct pins.
Should the lead being fitting be pre-terminated for the equipment being installed, it should be verified that
the pin-outs are correct before connecting.
Once these checks are carried out, the ICE unit may now be reconnected, refitted then tested for correct
functionality.
4.6. Equipment power source
Vehicle manufacturer’s instructions must take precedence where they give details on the provision of a
power supply for communication and ancillary or auxiliary equipment.
Power connections should not be made to any ECU feeds under any circumstances
Vehicles are being produced with CAN bus/multiplex/fibreoptic wiring systems and caution should be
taken when sourcing a suitable power supply. Also see section 2.7.1 regarding SVA.
See section 2.2.4 for specific advice on specialist vehicles.
See section 4.4.8.1 for additional power requirements should auxiliary equipment also need to be
installed.
4.6.1. Equipment with high current rating
Where the equipment or multiple pieces of equipment combined have high power consumption then this
may compromise the operation of the vehicle and original vehicle battery.
The vehicle should be specially adapted and the capacity of the battery and charging circuit increased to
meet the current requirement of any additional equipment, for example fitting a higher capacity battery
and/or the installation of a split charger and second auxiliary battery.
See section 4.6.3 regarding fusing.
4.6.2. Provision of a dedicated/permanent power supply cable
Unless otherwise indicated by the vehicle manufacturer a dedicated supply cable should be used for the
mobile installation.
If the power source is from a power distribution point other than the battery it must be adequately rated so
that the collective current drawn does not exceed the rating of the distribution point.