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Input/Output Signal Chart

Sensor Input signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)
Engine speed(1) Cooling fan control IPDM E/R
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Cooling fan control module
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Cooling fan motor
Engine coolant temperature sensor Engine coolant temperature
Refrigerant pressure sensor Refrigerant pressure
Battery Battery voltage(1)
Combination meter Vehicle speed(2)
A/C auto amp. A/C ON signal(2)
A/C evaporator temperature(2)
Target A/C evaporator temperature(2)
Blower fan ON signal(2)
(1) The ECM determines the start signal status by the signals of engine speed and battery voltage.
(2) This signal is sent to ECM via the CAN communication line.