Nissan GT-R (R35) · Service Manual ENGINE

COOLING FAN

VR38

Description

 
 COOLING FAN CONTROL MODULE

Cooling fan control module receives ON/OFF pulse duty signal from IPDM E/R. Corresponding to this ON/OFF pulse duty signal, cooling fan control module sends cooling fan motor operating voltage to cooling fan motor. The revolution speed of cooling fan motor is controlled by duty cycle of the voltage.
 
 COOLING FAN MOTOR

Cooling fan motor receives cooling fan motor operating voltage from cooling fan control module. The revolution speed of cooling fan motor is controlled by duty cycle of the voltage.

Component Function Check


 
 1.CHECK COOLING FAN FUNCTION

Diagnosis Procedure


 
 1.START
 
 2.CHECK COOLING FAN CONTROL MODULE 1 POWER SUPPLY CIRCUIT-I
 
 3.CHECK COOLING FAN CONTROL MODULE 1 POWER SUPPLY CIRCUIT-I
 
 4.CHECK COOLING FAN CONTROL MODULE 1 GROUND CIRCUIT FOR OPEN AND SHORT
 
 5.CHECK COOLING FAN CONTROL MODULE 1 CIRCUIT FOR OPEN AND SHORT
 
 6.CHECK COOLING FAN CONTROL MODULE 1 OUTPUT SIGNAL CIRCUIT
 
 7.CHECK COOLING FAN MOTOR 1
 
 8.CHECK COOLING FAN CONTROL MODULE 2 POWER SUPPLY CIRCUIT-I
 
 9.CHECK COOLING FAN CONTROL MODULE 2 GROUND CIRCUIT FOR OPEN AND SHORT
 
 10.CHECK COOLING FAN CONTROL MODULE 2 CIRCUIT FOR OPEN AND SHORT
 
 11.CHECK COOLING FAN CONTROL MODULE 2 OUTPUT SIGNAL CIRCUIT
 
 12.CHECK COOLING FAN MOTOR 2
 
 13.CHECK COOLING FAN RELAY 2 POWER SUPPLY CIRCUIT
 
 14.DETECT MALFUNCTIONING PART
 
 15.CHECK COOLING FAN RELAY 2 GROUND CIRCUIT FOR OPEN AND SHORT
 
 16.CHECK COOLING FAN CONTROL MODULE 2 POWER SUPPLY CIRCUIT-II
 
 17.CHECK COOLING FAN RELAY 2
 
 18.CHECK INTERMITTENT INCIDENT
 
 19.CHECK COOLING FAN RELAY 1 POWER SUPPLY CIRCUIT
 
 20.DETECT MALFUNCTIONING PART
 
 21.CHECK COOLING FAN RELAY 1 GROUND CIRCUIT FOR OPEN AND SHORT
 
 22.CHECK COOLING FAN CONTROL MODULE 1 POWER SUPPLY CIRCUIT-II
 
 23.CHECK IPDM E/R GROUND CIRCUIT FOR OPEN AND SHORT
 
 24.CHECK COOLING FAN CONTROL MODULE 1 CIRCUIT FOR OPEN AND SHORT
 
 25.CHECK COOLING FAN RELAY 1
 
 26.CHECK INTERMITTENT INCIDENT

Component Inspection (Cooling Fan Motor)


 
 1.CHECK COOLING FAN MOTOR

Component Inspection (Cooling Fan Relay)


 
 1.CHECK COOLING FAN RELAY