Repair manual

PRE/POST-HEATING RESISTANCE
The resistance is ~ 0,7 Ohm.
Such resistance is placed between the cylinder head and the suction manifold. It is used to heat up air during pre/post-heating
operations.
When the ignition key is inserted, should any one of the temperature sensors — water, air, gas oil — detect a value below 10°C,
the electronic control unit will activate pre/post-heating and turn on the relevant dashboard warning light for a variable time
depending on the temperature.
After that time, the warning light starts blinking thus informing the driver that the engine can be started.
When the engine is running the warning light goes off, while the resistance is being fed for a certain time as a result of post-heating.
If the engine is not started, with the warning light flashing, in 20 / 25 seconds, the operation is cancelled to prevent draining the
battery.
On the contrary, if reference temperatures are over 10°C, when the ignition key is inserted the warning light comes on for about
2 seconds and carries out the test and then goes out to signal that the engine can be started.
Figure 22
119966
119967
(F3CE0684A*E001)
(F3CE0684AB*E003)
SECTION 3 - INDUSTRIAL APPLICATION 53
F3C CURSOR ENGINES
Print P2D32C005 E Base - May 2007