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:

P1588 G Sensor
DTC Logic DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition Possible causes P1588 G Sensor (Gravity Sensor Circuit) When the following diagnosis conditions are satisfied and the detection conditi ...

Pedal vibration or abs operation sound occurs
Diagnosis Procedure CAUTION: Under the following conditions, ABS is activated and vibration is felt when brake pedal is lightly depressed (just place a foot on it). However, this is normal. When shifting gears When driving on slippery road During cornering at high spee ...

Heater and Air Conditioner (manual) (if so equipped)
WARNING The air conditioner cooling function operates only when the engine is running. Do not leave children or adults who would normally require the assistance of others alone in your vehicle. Pets should also not be left alone. They could accidentally injure them ...

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