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Input/Output Signal Chart

INPUT/OUTPUT SIGNAL REFERENCE

Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS) Engine speed(2) Air conditioner cut control IPDM E/R
โ†“
A/C relay
โ†“
Compressor
Camshaft position sensor (PHASE)
Engine coolant temperature sensor Engine coolant temperature
Accelerator pedal position sensor Accelerator pedal position
Battery Battery voltage(2)
Refrigerant pressure sensor Refrigerant pressure
Power steering pressure sensor Power steering operation
Unified meter and A/C amp. Air conditioner ON signal(1) & Vehicle speed(1)
(1) This signal is sent to the ECM through CAN communication line.
(2) ECM determines the start signal status by the signals of engine speed and battery voltage.