Iveco Daily Euro 4. Manual - part 231
8
ELECTRIC/ELECTRONIC SYSTEM
D
AILY
E
URO
4
The negative cables connected to an earth point must be as short as possible and connected to one another in a ”star” connection,
trying to tighten them neatly and adequately.
Additionally, for electronic components the following instructions should absolutely be followed:
- Electronic control units must be connected to the system earth when they have a metal container.
- The negative cables of electronic control units must be connected to both a system earth point, for example the dashboard
earth (avoiding ”serial” or ”chain” connections), and to the negative terminal of the battery/ies.
- Though they are not connected to the system earth/battery negative terminal, analogue earths (sensors) must be perfectly
insulated. Therefore, particular care should be given to the parasite resistances of the terminals: oxidation, clinching defects,
etc.
- In the presence of jointing connectors the unscreened section d, near them, should be as short as possible.
- The cables should be laid on parallel with the reference plane, i.e. as near as possible to the frame/body structure.
- Additional electromechanical systems should be carefully connected to the system earth and must not be set at the side
of the cables of electronic components.
SCREENING BY METAL BRAID OF A CABLE TO AN ELECTRONIC COMPONENT
C. Connector - d. Distance ! 0
Figure 2
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