Iveco DAILY M.Y. 2012, Body Builder Instructions

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SPECIAL INSTRUCTIONS FOR ELECTRONIC SUBSYSTEMS
5-17
D
AILY
Printed 603.95.241 Base - 02/2012
Electronic control units
Electronic control units
5.3 Electronic control units
5.3.1 Precautions to be taken with the installed electronic control units
In order to avoid any operations that could permanently damage or cause the operation of the vehicle ECUs to deteriorate,
it is good practice to:
•
remember that connecting to and disconnecting from the battery terminals generates voltage that can cause problems for the
vehicle’s electronic systems and ECUs;
•
do not remove and/or connect the connectors from the control units when the engine is running or the control units are
powered;
•
disconnect the electronic control units whenever particular operations involve temperatures above 80 ºC;
•
avoid using a rapid battery charger for emergency starting under all circumstances, because it could damage the electrical systems
and in particular the systems that manage ignition and power supply functions;
•
do not power the components interlocked with electronic modules with the vehicle’s nominal voltage via movable cables;
•
connect ECUs supplied with a metal casing to the system ground using a screw or bolt, unless otherwise specified.
In case of actions to the taken on the chassis, which require electric arc welding, the following shall be done:
- disconnect the CBA from the positive battery terminal and do not connect it to the chassis ground;
- remove the connector form the control units;
- disconnect the ECU from the chassis (in the case of welding close to the ECU itself);
- make the welds by using direct current;
- ground the welding machine as near the welding point as possible;
- do not lay the battery cables parallel to the vehicle’s electric cables.
Only use fuses with the correct specifications for the specific function.
NEVER USE FUSES WITH HIGHER CAPACITY THEN THE PRESCRIBED ONE.
Replace only with keys and appliances disconnected.
!
Whenever work has been carried out on the electrical system, once the work has been completed the cabling must be restored
to its original condition (paths, protection, ties), absolutely avoiding the cables coming into any contact at all with metal surfaces
on the structure which could erode their integrity.