Nissan Altima Fan Wiring The cooling fan operates at each speed when the current flows in the cooling fan motor as per the following. the cooling fan operates at low (low) speed when cooling fan motors 1 and 2 are circuited in series under the middle speed condition. refer to ec 1099, "system diagram". component function check. 1.check cooling fan function. 1. The fsm also describes testing the various harnesses and connections between the relays, fan motors, and the cpu. the cpu is supplying the 12v to the motor windings and the relay operation supplies the ground. the relays supply ground to various windings of the motors for the different speeds. the fsm also cautions not to overheat the engine.
2001 Nissan Altima Wiring Diagram Nissan altima (l32) 2007 2012 service manual: cooling system. cooling circuit. 1. cylinder block (rh) 2. oil cooler. 3. cylinder head (rh) 4. water pump. 5. radiator. Ecm controls cooling fan speed corresponding to vehicle speed, engine coolant temperature, refrigerant pressure, air conditioner on signal. then control system has 4 step control [high mid low off]. cooling fan operation. cooling fan relay operation. the ecm controls cooling fan relays through can communication line. component parts location . 1. – your nissan dealer’s name – your comments or questions or you can write to nissan with the information at: for u.s. customers nissan north america, inc. consumer affairs department p.o. box 685003 franklin, tn 37068 5003 or via e mail at: nnaconsumeraffairs@nissan usa for canadian customers nissan canada inc. 5290 orbitor drive. 1. verify the fan itself is good or bad. disconnect the wiring to the fan. connect the fan itself directly to the car battery. if the fan runs directly off the battery (for at least several minutes) with no problem then the electrical fan relay is worth checking by replacement. 2.
Nissan Altima Wiring Diagrams Car Electrical Wiring Diagram – your nissan dealer’s name – your comments or questions or you can write to nissan with the information at: for u.s. customers nissan north america, inc. consumer affairs department p.o. box 685003 franklin, tn 37068 5003 or via e mail at: nnaconsumeraffairs@nissan usa for canadian customers nissan canada inc. 5290 orbitor drive. 1. verify the fan itself is good or bad. disconnect the wiring to the fan. connect the fan itself directly to the car battery. if the fan runs directly off the battery (for at least several minutes) with no problem then the electrical fan relay is worth checking by replacement. 2. 1. first find the cooling fan schematics. 2. locate the ecu pinout for the cooling fan relay hi control. in this case, i am using a '95 ecu pinout that shows pin 13 for the cooling fan relay hi control. note: if you prefer manual control for only low fan speed operations then use ecu pin 14 instead for cooling fan relay lo control. 3. Cooling fan cooling fan wiring diagram, except hybrid for nissan altima s 2011list of elements for cooling fan wiring diagram, except hybrid for nissan altima s 2011: (lower left side of engine compt) e915g2.5l california2.5l california & 3.5l2.5l except california3.5l51g52gcan hcan lcomputer data lines systemcooling fan motor 1 (left front of.
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