Coolant Fan - ECU Master EMU User Manual

Coolant fan

Coolant fan options determine which output is used to control the radiator fan relay and its control
parameters.
PARAMETER
Activation temperature Cooling fan turn-on temperature
Hysteresis
Output
Invert output
Turn off during
cranking
Relay and appropriate fuse must be used for proper radiator fan wiring.
DESCRIPTION
Hysteresis which defines how many degrees the coolant temperature
must fall below the Activation temperature to turn off the cooling fan
Device output to which the coolant fan relay is connected
Reversal of output state. Can be used to test the operation of the
coolant fan
This option allows to turn off coolant fan during cranking
EMU
G21
G17
G24
B24
Example of the radiator fan relay wiring diagram
+12V +12V
30 86
87 85
20A
M
Page 88