Page 772 - Foton Workshop Manual - Auman EST-M

EG - 256 Engine section – Engine (Cummins ISF3.8)

g. Control of start pre-heating

When the intake heating is controlled by ECM and the ambient temperature is smaller than -10℃, the system
improves the startability of diesel engine at low temperature by controlling the power-on time of intake heater
h. Failure diagnosis function
ECM has the function of fault diagnosis. When ECM detects the fault signal, the fault light will be on first,
and the fault signal will be displayed in flash code. Maintenance personnel will eliminate the fault
accordingly.
i. Safety protection function

The system has safety protection function. For example, at abnormal inlet temperature, pressure and cooling
fluid temperature, etc and more than 2000m altitude, the system will protect the diesel engine by reducing oil;
in addition, when any fault occurs to the sensor, etc, the system can still work by some model, thus the vehicle
can reach the maintenance point.

EG-256