2008 Chrysler Town & Country Radiator / AC Fan

Radiator /Cooling fan does not come on at all. Neither turning on AC nor hitting operating temperature operates fan. AC stopped working at approximately the same time frame. My GF said AC performance was inconsistent prior to failing. Checked fuses in TIPM.

Friends scan tool forced the fan on. Does this confirm wiring and fuses?

Additional info:
Van was overheating late last year. Replaced thermostat and water pump. Van hasn't overheated in over 9 months. AC clutch does not engage.

2008 Chrysler Town & Country
3.3L Flex
Manual AC Control up front and mid van

I cant answer your question regarding the fan, but Ive had some issues with the AC myself.

Does the AC compressor run, but the clutch fails to engage?
If the compressor doesnt run at all it could be as simple as not being enough gas in the system. If its below 30% or so of total (depending on compressor/system) it simply wont start.

If the compressor runs but the clutch doesnt engage it could be that the distance from the compressor housing to the clutch is to far. I had to change the "spacers" between the clutch and housing for it to engage on my previous car. The clutches wear over time off course creating a bigger gap.

Hello,

When your friend had the scan tool hooked up, were there any DTC's(Digital Trouble Codes), or P-Codes?
Did they have the option to run the Radiator cooling fan on both HI/LO speeds?

If you dont have access to the scan tool, put your key in the ignition and turn to engine running, then back to OFF, 3 times in a row with the last being in the Run position. Your Odometer, message center will display any codes.

If a scan tool could command the fan to run, that means communication to the TIPM( Totally Integrated Power Module) is good, the fan, and its two relays are good and the power and grounds as well, and the 40Amp fuse.

The problem would then be where the Engine Control Module(ECM) needs to tell the TIPM to activate the fan.
The ECM gets its input from the ECT(Engine Coolant Temperature Sensor), then , when required the ECM messages the TIPM with the command to run the Fan. This Problem would normally set some DTC's off.

Unsure if fan and ac are separate issues. Primary concern would be the fan. But man, it is still hot here in South! Oh did I mention driver's window doesn't work? Needs a new switch. I can jump the pins and roll it down tho.

@DrGreve
Yes compressor runs clutch doe not engage. Tried tapping the clutch with system turned on to see if clutch engages to no avail.

I have freon but the instructions say to add while clutch is engaged.

@Weycraze
I do have a code reader but it's not bidirectional like the one my friend used. Yes he was able to control high and low fan speeds. The "money light" is not on and no codes were found via scanner nor key dance.

My friend thought I should get a new fan as he thought it was something on the fan assembly itself that controls when it comes on. However, he is not a mechanic quite yet and quick to throw a part at a problem. I reasoned similar to you thinking. I think I'll try testing/replacing the sensor first.

This is the fan in question:
5058674AD
Nothing about the description seems to support his suggestion.

Before you change the ECT out, start the engine and unplug the ECT, the fan should start on High and youll probably set a pcode so long as that signal goes high.

Disregard the above statement, call me a liar!

Your ECT has two wires, Dark Blue with Dark Green tracer(Sensor Ground) and a Violet with Orange tracer(Signal)

See if the PCM will turn the fan on by backprobing the Violet/Orange wire and jumping it to Ground.

You may set a code, but the fan should run because the ECM thinks the engine is hot.

Finally able to try this out. Back probed ECT and jumping violet/ orange to ground did turn the fan on.

That's good news, change out the sensor and you're good to go!

It would be wise to check your sensor ground as well, unplug the sensor, paperclip the sensor signal wire to the sensor ground wire.

Fan turns on, you're wiring integrity is good, replace the sensor!