Electronic Control Units - Alfa Romeo 156 Owner's Manual

The total absorption of these accessories
(standard and installed later) must be less
than 0.6 mA x Ah (of the battery), as
shown in the table below:
Battery Maximum permissible
loadless absorption
50 Ah
60 Ah
70 Ah
You are also reminded that services with
high current absorption activated by the user,
such as bottle warmers, vacuum cleaners,
cellular telephone, mini refrigerator, etc. ac-
celerate the battery drainage process if they
are powered with the engine not run-
ning or running at idle speed.
WARNING It should also be noted that
improper branches on connectors of the elec-
tric wiring for installing additional equipment
is dangerous, particularly if safety devices
are involved.
270
ELECTRONIC CONTROL
UNITS
With normal use of the car, no particular
precautions need to be taken.
In the event of work on the electric system
or emergency starting, the instructions giv-
en below must absolutely be adhered to:
30 mA
– Always switch off the engine before dis-
36 mA
connecting the battery from the electric sys-
tem.
42 mA
– If it is necessary to charge the battery,
always disconnect it from the electric sys-
tem.
– When starting in an emergency, only
use an auxiliary battery and not a battery
charger.
– Check that the bias is correct and that
the connections between the battery and
the electric system are in efficient conditions.
– Do not connect or disconnect the ter-
minals of the electronic units while the ig-
nition key is at MAR.
– Do not check for current in the cables by
short-circuiting the ends.
– If electrical welding is to be carried out
on the body of the car, the electronic con-
trol units must be disconnected or removed
if the work involves the production of high
temperatures.
WARNING
Alterations or repairs to
the electric system carried
out incorrectly and without taking
into account the specifications of
the system, may cause operating
faults with the risk of fire.