LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2012 >> EX35 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 59 (Engine Control System - Introduction) >> Function Diagnosis >> Cooling Fan Control >> System Description >> Input/Output Signal Chart
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Input/Output Signal Chart

WARNING: This page is about a different car, the 2008 Infiniti EX35. However, it is still accessible from the selected car via links, so may be relevant.
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
โ†“
Cooling fan control module
โ†“
Cooling fan motor
Engine coolant temperature sensor Engine coolant temperature
Refrigerant pressure sensor Refrigerant pressure
Battery Battery voltage(1)
Unified meter and A/C amp. Vehicle speed(2)
Air conditioner ON signal(2)
A/C evaporator temperature(2)
Target A/C evaporator temperature(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 through CAN communication line.