DAILY 4x4 ‒ GUIDELINES FOR BODYBUILDERS
ELECTRONIC SUB-SYSTEMS
5.4 ELECTRICAL SYSTEM
17
– Printed 692.68.999 – 3 Ed. - Base 08-2020
5.3.2 Disconnecting the electronic control units
▶ Interventions which do not comply with the instructions specified by IVECO or which are per-
formed by unqualified personnel may cause severe damage to on-board systems, affect driving
safety, reliability and vehicle functioning and cause considerable damage which is not covered by
the warranty.
The following instructions must be strictly observed before disconnecting an electronic control unit:
● turn the ignition key to OFF and remove it;
● switch off the additional heaters and wait for the end of the cooling down cycle (the warning light of the corresponding key
will go out);
● switch on the reading spotlights centrally positioned on the cross member;
● isolate the battery by disconnecting the power cables: first the negative pole followed by the positive pole; the aforesaid spot-
lights are now off;
● disconnect the control unit.
5.3.3 Repositioning the electronic control units
IVECO recommends avoiding modifications which entail the repositioning of the electronic control units. However, if repositioning
is unavoidable, please follow the instructions below:
● the electronic control units must be positioned on the chassis or in the cab and secured with a fastening similar to the original
one (i.e. suitable bracket);. The device must not be rotated in relation to the chassis so as to avoid potential malfunctions (e.g.
infiltration of water). Therefore the original positioning must also be maintained;
● the electronic control units must not be fitted on the subframe;
● the covering must always be reinstalled;
● the control units must not be subjected to impact from road debris or stones coming from the vehicle's wheels when the
vehicle is moving.
5.4 ELECTRICAL SYSTEM
5.4.1 General information
Vehicles are set to function normally with a 12 V electrical system.
The chassis represents the grounding (it acts as a current return conductor between the components located on it and the bat-
tery power source/alternator) and it is connected to the negative pole of the battery and components, if an isolated return is not
provided for this.
When installing additional equipment or additional circuits, the following indications must be taken into account and, depending on
the complexity of the operation, there must be proper documentation (e.g. wiring diagram) to match that of the vehicle.
The use of cables and connections with colours/codes identical to those used on the original vehicle makes installation correct and
facilitates any repair work.
For effective and proper use of the electrical system, specific connection points for additional equipment have been prepared. This
was necessary to exclude any type of alteration of the basic design, so as to ensure its functional integrity and therefore maintain
the vehicle guarantee.
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