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Home >> Infiniti >> 2010 >> FX50 >> Repair and Diagnosis >> External Pages >> Different car >> Section 10 (Engine Control System (VQ35HR) - Introduction, DTC Index, Function & Component Diagnosis) >> Function Diagnosis >> Air Conditioning Cut Control >> System Description >> Input/Output Signal Table

Input/Output Signal Table

WARNING: This page is about a different car, the 2010 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.
INPUT/OUTPUT SIGNAL TABLE

Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor Engine speed(2) Air conditioner cut control IPDM E/R
↓
A/C relay
↓
Compressor
Camshaft position sensor
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. Vehicle speed & Air conditioner ON signal(1)
(1) This signal is sent to the ECM via the CAN communication line.
(2) ECM determines the start signal status by the signals of engine speed and battery voltage.
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