Need a diagram of the heating and cooling system of a 2006 dodge stratus, to install fan motor assembly

It sounds like the coolant temperature sensor has failed or isn't connected. That is what switches the fans on as needed.

https://www.google.com/search?q=2006+dodge+stratus+2.7+coolant+temperature+sensor

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Have you tried your library. I have found that most libraries have auto repair books. Usually you can't check them out but you can study them. Auto parts stores sell repair manuals.
I have not used any of the in line manuals but here is a link.

Chilton Auto Repair Manual Online

disconnect the plug at the cooling fan motor and run jumper wires from the battery to the motor if it does not run then the fan motor needs replacing. if it does then your on the right track with the relay. on the bottom of the cover you remove to get to the relays they sometimes have the relay listed. if you have access to a scan tool you can command the PCM to turn on the cooling fan. if it commands the fan and the fan does not run then you start by checking at the relay.

here is your cooling system electrical wiring diagram.
use a digital volt ohm meter to check for power at relays and be sure to check fan operation (turn car on and fans and poke with a stick if fan starts operating and then shuts off it is drawing to much power and needs to be replaced. if blades will not turn fan is locked up and needs to be replaced. do not run engine for too long without proper functionong cooling system you could cause sever engine damage i.e. headgasket or cracked block. also be sure the radiator has plenty of coolant and is functioning normally hope this helps

your fan motor may b bad or the fan relay or a bad wire

Are we talking about the cooling fan not coming on if so first thing is to check the fuses if they are good there is a good chance that the motor is bad and needs to be replaced. Its not hard to do will take about 1.5 hours in the drive way.

FAN NOT WORKING

It can be issue with faulty motor or its faulty fan control relay.

Bother are to be inspected.

Test volt at fan relay and fan motor.

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For more help, I suggest you to go through the troubleshooting links mentioned below:-----

Click the link below: ------

How to replace Cooling Fan on Acura Car models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-cooling-fan-on-acura-car.html

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OBD Code P1490 low speed fan relay ckt open-short

http://schematicsdiagram.blogspot.com/2012/11/obd-code-p1490-low-speed-fan-relay-ckt.html

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Engine cooling components working?

http://repairhelpcenter.blogspot.com/2011/11/engine-cooling-components-working.html

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How does Vehicles Engine cooling system works?

http://repairhelpcenter.blogspot.com/2011/11/how-does-vehicles-engine-cooling-system.html

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Hyundai Sonata cooling fan not working

http://schematicsdiagram.blogspot.in/2012/02/hyundai-sonata-cooling-fan-not-working.html

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Fuel pump relay and cooling fan relay troubleshooting on 1997 ford thunderbird?

http://repairhelpcenter.blogspot.com/2011/10/fuel-pump-relay-and-cooling-fan-relay.html

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Fan belt routing diagram for 2004 Volkswagen Jetta?

http://carbeltrouting.blogspot.com/2011/12/fan-belt-routing-diagram-for-2004.html

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Timing belt, drive belt, serpentine belt, accessory belt, fan belt, engine belt routing diagrams for all types of car models?

http://carbeltrouting.blogspot.in/2012/02/timing-beltdrive-beltserpentine.html

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A/C, heater, defroster fan, not working?

http://technoanswers.blogspot.in/2012/02/ac-heater-defroster-fan-not-working.html

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Blower fan not running on Isuzu trooper?

http://technoanswers.blogspot.in/2012/02/blower-fan-not-running-on-isuzu-trooper.html

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How to replace blower motor fan assembly on 2000 GMC Yukon?

http://repairhelpcenter.blogspot.com/2012/01/how-to-replace-blower-motor-fan.html

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Heater AC or defroster fan not working on KIA?

http://technoanswers.blogspot.in/2012/02/heater-ac-or-defroster-fan-not-working.html

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These will help.

Thanks.

On this website you find fuse box diagram and description for Dodge Stratus (2005 - 2006)

Dodge Stratus 2005 2006 fuse box diagram

Removal & Installation To Remove:

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Remove or disconnect the following:
   • Radiator upper crossmember
   • Fan motor electrical connector
3. Drain cooling system below the level of the upper radiator hose.
4. Remove or disconnect the following:
   • Upper radiator hose from radiator
   • Radiator fan fasteners and upper clip
   • Fan assembly by lifting upward to clear radiator

To Install:

1. Install or connect the following:
   • Radiator fan assembly
   • Upper clip and fasteners
   • Upper radiator hose to radiator
   • Fan motor electrical connector
   • Radiator upper crossmember
2. Fill cooling system.

Most likely a thermostat issue but it could need a back flush of the radiator system or a problem with the oil circulation. Check your radiator level, replace the Thermostat and make sure your oil is at the proper level. Also, make sure your fans are working correctly. When the motor is off see if the fan moves freely. That will tell you if the clutch is engaging correctly when the vehicle is moving. it it isn't then you are actually putting a larger strain on your motor when driving than the cooling system was designed to cool.