Radiator Fan Funny Behavior

[Judah Peterson]

So my radiator fans keep turning on and off every 5 seconds. I replaced the radiator fan control module and the sensor switch and they still do the same thing. I noticed when I unplug every thing and plug it back in everything works normally for a couple minutes. I cleaned all the connections and both fans work fine. Does anybody know what it might be.
The only thing I can think of is my ecu.
Could it be something with my AC.
Whenever I turn my car off the AC light turns on.

 

[super1]

So my radiator fans keep turning on and off every 5 seconds. I replaced the radiator fan control module and the sensor switch and they still do the same thing. I noticed when I unplug every thing and plug it back in everything works normally for a couple minutes. I cleaned all the connections and both fans work fine. Does anybody know what it might be.
The only thing I can think of is my ecu.
Could it be something with my AC.
Whenever I turn my car off the AC light turns on.

Are you saying that they stay on when car is off? if so check all fuses

 

[Judah Peterson]

No
they only come on when the ignition is on.

 

[Judah Peterson]

The fans just keep turning on and off.
And I already replaced the control module and sensor switch.
I checked the fuses and there all fine

 

[super1]

The fans just keep turning on and off.
And I already replaced the control module and sensor switch.
I checked the fuses and there all fine

Is the A/C switch in the off position? Maybe switch is sticking?
seems like something is energizing A/C circuit check fuses on top of battery the 3 little ones I think furthest left, those boxes melt lots of times

 

[Judah Peterson]

It's in the off position

 

[Judah Peterson]

The fuses look fine
I'll replace the and see if that does anything

 

[super1]

The fuses look fine
I'll replace the and see if that does anything

So when the AC switch lights up, do you push it in and out and does that change anything?

 

[Judah Peterson]

It turns off when I push it in but when I push it back out it turns off again

 

[P2B]

It turns off when I push it in but when I push it back out it turns off again

That doesn't compute

Have you tested the fuses at the end of the dash by the driver's door? Specifically fuse #16.

The fuses look fine

Visual inspection of fuses is not reliable, test them with a meter. The fuse holders on top of the battery are often an issue as opposed to the fuses themselves.

 

[Judah Peterson]

I checked the fuses with a meter and there fine.
I did replace the old ones.