AC not working

Tiny
EMANZO
  • MEMBER
  • 2006 DODGE STRATUS
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 175,000 MILES
Blow just heat and no cool air.
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Sunday, December 15th, 2019 AT 7:50 PM

68 Replies

Tiny
AL514
  • EXPERT
Hello, can you see if the A/C compressor is cycling off and on? The front of the compressor has a clutch that you should see moving then lock up and start moving again.

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

Let us know what you see.
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Monday, December 16th, 2019 AT 7:16 AM
Tiny
EMANZO
  • MEMBER
Yes the AC compressor is working. I can hear and see when turn on and off.
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Monday, December 16th, 2019 AT 9:14 AM
Tiny
AL514
  • EXPERT
Can you change settings from floor to dash for air flow? One of the doors may not be moving correctly. Do all other settings work?
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Monday, December 16th, 2019 AT 9:43 AM
Tiny
EMANZO
  • MEMBER
When I change floor to dash, they close and open but blowing hot air, the others settings work and blow hot air.I keep the climate control in cool.
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Monday, December 16th, 2019 AT 10:42 AM
Tiny
AL514
  • EXPERT
Okay, so either the hot/cold mix door is stuck one way, there's a wiring problem, or the climate control module isn't working right. You would have to pull the climate module out and check that it's sending power on the right wire to the door motor. And another thing is this car has a body control module that's in play here too. But checking for power is where you would start with this.
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Tuesday, December 17th, 2019 AT 7:24 AM
Tiny
AL514
  • EXPERT
Sorry I was looking at the wrong year, the hot/cold button is cable controlled. Here's a quick video I found with repair instructions:
https://m.youtube.com/results?search_query=2006+DODGE+STRATUS2.4L+climate+control
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Tuesday, December 17th, 2019 AT 7:37 AM
Tiny
EMANZO
  • MEMBER
Thank you. I will check the video and see if a can do something.I'll back to you as soon as the rain stop. Thank's again for help me.
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Tuesday, December 17th, 2019 AT 9:08 AM
Tiny
EMANZO
  • MEMBER
Hello,

I pull radio and climate module and I do not see any cable, It is very difficult reach a plastic cover at there. The video I see is difference than my car. Mine is Dodge Stratus 2006 2.4 L 4 Cylinders VIN # 1B3EL46X26N151184. Thank you. Can you give a clue please?
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Wednesday, December 18th, 2019 AT 9:54 AM
Tiny
AL514
  • EXPERT
Okay, I pulled a wiring diagram to help figure the connections on the back of the climate control module. This car does have a body control module, that's where the signal from the climate control module goes as you will see on the diagram, so testing for power is the first step. I can explain how to test this if you have a multi-meter and are familiar with it.
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Wednesday, December 18th, 2019 AT 1:23 PM
Tiny
AL514
  • EXPERT
Do you have separate climate controls for passenger/driver side temperature settings?
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Wednesday, December 18th, 2019 AT 1:36 PM
Tiny
EMANZO
  • MEMBER
No, in climate module is just 3 knobs 1 for blowing speed, 1 for climate control and 1 for air position. All of them on top of the radio.
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Wednesday, December 18th, 2019 AT 2:15 PM
Tiny
AL514
  • EXPERT
Okay, the radio will have to come out most likely to get to the back of the climate control module, can you take a quick picture of the controller for me? I have the wiring diagrams for both the automatic and manual systems.
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Wednesday, December 18th, 2019 AT 2:23 PM
Tiny
EMANZO
  • MEMBER
Thank you, yes I have multi-meter appreciate if you teach me how measure.
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Wednesday, December 18th, 2019 AT 2:24 PM
Tiny
AL514
  • EXPERT
Okay, so with the meter set to DC volts, on 20 volt setting. Set the negative lead to battery ground and the red lead is going to be for testing each wire. Make sure you have a good connection on the ground side, check it at the battery for a good reading. And you are going to back probe each of these wires with the connector still plugged in, its going to be tough because of its location, but here is a diagram of how to back probe a connector without damaging the wire insulation. And you are going to check the power wire first, just to make sure it's okay, it's going to be the red/white wire first, that should be battery voltage. Next go to the yellow/orange wire and as you're turning the hot/cold knob the voltage should should go from 12 to either 5 or 0 volts. Either way it should vary as you're turning the control knob, that's the important thing. This wires are the ones with the red arrow on the diagram I sent earlier. We'll start there for now, and depending on the voltage readings we'll decide which way to go next. Any questions, just ask, If voltage is present and it's working okay, we'll go after the climate control module a bit next.

https://www.2carpros.com/articles/how-to-use-a-voltmeter
https://www.2carpros.com/articles/how-to-check-wiring
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Wednesday, December 18th, 2019 AT 2:43 PM
Tiny
AL514
  • EXPERT
These are the 2 connectors you should find on the back of the climate control module.
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Wednesday, December 18th, 2019 AT 2:52 PM
Tiny
EMANZO
  • MEMBER
Okay, I check for battery voltage and read about 13 V. I check the red/orange wire and turning the knob read 1.17 to 10.97 v.
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Thursday, December 19th, 2019 AT 8:04 AM
Tiny
AL514
  • EXPERT
Is it possible the wire colors are yellow/orange? I'm not seeing any red/orange wires on my diagrams here. Anyway if that's the correct wire and the body control module is receiving a signal from the head unit, we'll next have to check the body control module and see if it's sending a signal to which ever motor is controlling the hot/cold mix
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Thursday, December 19th, 2019 AT 9:08 AM
Tiny
EMANZO
  • MEMBER
Oh, I am sorry. The red/white wire is voltage from the battery an the yellow/orange is for cool and hot Knob and is receiving signal when I turn the knob.
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Thursday, December 19th, 2019 AT 9:35 AM
Tiny
EMANZO
  • MEMBER
How check the body control module to see if is sending signal?
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Thursday, December 19th, 2019 AT 9:48 AM
Tiny
AL514
  • EXPERT
Okay, I think you should start with checking the connections because of where the body control module is, it is attached to the fuse block to the left of the steering wheel. Its the silver looking box attached to the fuse panel. Hopefully this is the correct diagram. There are connections on the back of the fuse block that need to be checked visually as well. Make sure there is no corrosion on any of the connectors going into the back of the panel, and check the fuses while you're there. Let me know if this diagram is incorrect. There's a couple different designs. Going into the body control module, you should find that same yellow/orange wire coming from the hot/cold controls and be able to move the controls and watch the voltage change just like you did at the back of controller head (hot/cold button). Back probe the BCM while it's plugged in and the key is on.
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Friday, December 20th, 2019 AT 4:51 AM

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