Nissan Sentra manuals

Nissan Sentra Service Manual: Cooling fan control

SYSTEM DIAGRAM

SYSTEM DESCRIPTION


SYSTEM DESCRIPTION

ECM controls cooling fan speed corresponding to vehicle speed, engine coolant temperature, refrigerant pressure, air conditioner ON signal. Then control system has 3-step control [HIGH/LOW/OFF].

Cooling Fan Operation

Cooling Fan Relay Operation


Cooling Fan Relay Operation

When IPDM E/R recieves a cooling fan speed request signal, IPDM E/R controls the cooling fan ralay 1, 2 and 3.

Starter motor drive control


Air conditioning cut control
AIR CONDITIONING CUT CONTROL : System Description SYSTEM DIAGRAM INPUT/OUTPUT SIGNAL CHART Sensor Input Signal to ECM ECM function Actuator Crankshaft position sensor ( ...

Starter motor drive control
STARTER MOTOR DRIVE CONTROL : System Description SYSTEN DIAGRAM *1: CVT models *2: M/T models INPUT/OUTPUT SIGNAL CHART Sensor Input signal to ECM ECM function Actuator ...

Other materials:

Front disc brake
Brake Burnishing CAUTION: Burnish contact surfaces between brake pads and disc rotor according to the following procedure after refinishing the disc rotor, replacing brake pads or if a soft pedal occurs at very low mileage. Be careful of vehicle speed. Brakes do not operate firmly/sec ...

Eps branch line circuit
Diagnosis procedure 1.Check connector Turn the ignition switch off. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the eps control unit for damage, bend and loose connection (unit side and connector side). Is the inspection result norm ...

Rear window defogger power supply and ground circuit
Description Heats the heating wire with the power supply from the rear window defogger relay to prevent the rear window from fogging up. Component function check 1. Check rear window defogger Check that the heating wire of rear window defogger is heated when turning the rear window defogge ...

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