ELECTRICAL / ELECTRONIC APPLICATION & INSTALLATION MANUAL
17.2.2 Slip Mode Operation will occur under the following conditions:
Slip Mode Operation for C-15 and C-16
Slip Mode Operation for C-10 and C-12
Coolant Sensor Temperature increasing > 194°F (90°C).
Coolant Sensor Temperature increasing > 194°F (90°C).
NOTE: If the cooling fan is operating in Slip Mode the fan will continue to operate in Slip Mode until coolant sensor temperature is < 178°F (81°C).
NOTE: If the cooling fan is operating in Slip Mode the fan will continue to operate in Slip Mode until coolant sensor temperature is < 178°F (81°C).
Intake Air Sensor Temperature increasing > 127°F (53°C).
Intake Air Sensor Temperature increasing > 127°F (53°C).
NOTE: If the cooling fan is operating in Slip Mode the fan will continue to operate in Slip Mode until intake air sensor temperature is < 34°F (1°C).
NOTE: If the cooling fan is operating in Slip Mode the fan will continue to operate in Slip Mode until intake air sensor temperature is < 34°F (1°C).
*A/C High Pressure Switch Input is Open or ECM is Counting.
*A/C High Pressure Switch Input is Open or ECM is Counting.
17.2.3 Brake Mode Operation (Fan OFF) will occur if engine rpm exceeds 2300 rpm or when all of the following conditions are met:
Brake Mode Operation for C-15 and C-16
Brake Mode Operation for C-10 and C-12
Coolant Sensor Temperature < 196°F (91°C).
Coolant Sensor Temperature < 196°F (91°C).
NOTE: If the cooling fan is operating in Slip Mode the fan will not transition to Brake Mode until the coolant sensor temperature decreases to < 178°F (81°C).
NOTE: If the cooling fan is operating in Slip Mode the fan will not transition to Brake Mode until the coolant sensor temperature decreases to < 178°F (81°C).
The fan has been ON for at least 20 seconds.
The fan has been ON for at least 20 seconds.
Intake Manifold Air Temperature < 129°F (54°C).
Intake Manifold Air Temperature < 129°F (54°C).
NOTE: If the cooling fan is operating in Slip Mode the fan will not transition to Brake Mode until the coolant sensor temperature decreases to < 34°F (1°C).
NOTE: If the cooling fan is operating in Slip Mode the fan will not transition to Brake Mode until the coolant sensor temperature decreases to < 34°F (1°C).
Engine Retarder ON Strategy is not Active.
Engine Retarder ON Strategy is not Active.
A/C High Pressure Switch not Active.
A/C High Pressure Switch not Active.
PTO On/Off Switch in OFF Position.
PTO On/Off Switch in OFF Position.
Manual Fan Override Switch in OFF position
Manual Fan Override Switch in OFF position
17.3 Air Conditioning High Pressure Switch Input #11 to the ECM is available for connection of a normally closed high pressure A/C switch. The ECM has a timer available to prevent excessive cycling of the cooling fan clutch due to successive cycling of the A/C switch input. The timer is programmable from 0 to 600 seconds, with 0 seconds indicating the feature is OFF (the default). Typical programming is 30 seconds, with 1 second recommended for systems connecting this input to other controls with their own built in timers.
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C-10, C-12, C-15 & C-16 Truck Engines
