2008 Dodge Avenger: OBD Code P0073?

OBD Scan Test Showed Error Code P0073.

If you dont have Scan tool then also you can retrieve the codes manually.
There is a simple procedure.

Here it is:------

Get in the vehicle, and close all the doors.Now  Cycle the ignition to  ON-OFF-ON-OFF-ON within 5 seconds. Where the odometer is, should now be displayed p-codes. The Code starts with P and then 4 number will be shown one by one.
That is the error code.

Now As for OBD Error Code P0073, this p-code is fairly straight forward, and is pointing to a fault with the Ambient Temp Sensor (this is used for the heating/air conditioning systems).This Sensor is Located in front of right front tire.
This sensor has to be replaced.

If the sensor is replaced and still the Error code is not getting cleared, then  the next step is to carefully inspect the electrical connector and as far up the harness as you possibly can.
More than likely, there will be a broken or rubbed through wire somewhere.Which is noticed in many such cases. Make sure the wires are tight and not damaged at the electrical connector as well.
If  you see no issue with the wiring ,then other possibility is  that when the sensor was damaged, there was damage done to the Totally Integrated Power Module (TIPM) as this is the unit that controls this Ambient Temp Sensor.

Unfortunately, to test the TIPM will require the use of a scan tool and voltage meter.

See the diagram shown below for part location:---------




For Exact location of the TIPM module See the diagram shown below:-------



This details and diagrams will help.
Thanks.

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TEMPERATURE INVERSION?

The details are as follows :----


In normal weather situations, surface air is warmed by heat radiating from the earth's surface and the sun's rays. This causes it to rise upward, into the atmosphere. Upon rising it will cool through a convection type heat exchange with the cooler upper air. As warm air rises, the surface pollutants are carried upward and dissipated into the atmosphere. When a temperature inversion occurs, we find the higher air is no longer cooler, but is warmer than the surface air, causing the cooler surface air to become trapped. This warm air blanket can extend from above ground level to a few hundred or even a few thousand feet into the air. As the surface air is trapped, so are the pollutants, causing a severe smog condition. Should this stagnant air mass extend to a few thousand feet high, enough air movement with the inversion takes place to allow the smog layer to rise above ground level but the pollutants still cannot dissipate. This inversion can remain for days over an area, with the smog level only rising or lowering from ground level to a few hundred feet high. Meanwhile, the pollutant levels increase, causing eye irritation, respiratory problems, reduced visibility, plant damage and in some cases, even disease. This inversion phenomenon was first noted in the Los Angeles, California area. The city lies in terrain resembling a basin and with certain weather conditions, a cold air mass is held in the basin while a warmer air mass covers it like a lid. Because this type of condition was first documented as prevalent in the Los Angeles area, this type of trapped pollution was named Los Angeles Smog, although it occurs in other areas where a large concentration of automobiles are used and the air remains stagnant for any length of time. 

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