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:

Intermittent Incident
DESCRIPTION Sometimes the symptom is not present when the vehicle is brought in for service. If possible, re-create the conditions present at the time of the incident. Doing so may help avoid a No Trouble Found Diagnosis. The fol- lowing section illustrates ways to simulate the conditions/env ...

Rear drum brake
Exploded View Cap Bleeder valve Piston Spring Boot Piston cup Wheel cylinder Apply rubber grease Apply PBC (Poly Butyl Cuprysil) grease or silicone-based grease Apply brake fluid Disassembly and Assembly DISASSEMBLY Remove the boot from wheel cylinder. Refer t ...

Seat belt warning system
Seat Belt Warning System Does Not Function 1.SEAT BELT WARNING LIGHT Turn ignition switch ON. Does the seat belt warning lamp come ON? YES >> GO TO 2. NO >> • Check 10A fuse [No. 8, located in the fuse block (J/B)]. Check seat belt buckle switch (driver seat) Check ha ...

© 2014-2025 Copyright www.nisentra.com