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Re: How do I determine which fuses relates to my AIR CON...
You should have a fuse diagram (or two) in your Owner's Manual. You may also find a diagram on the inside of the fuse block door. Look for the fuses described as AC, Comfort or AC/Heat Blower.
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In a 2002 Dodge Grand Caravan SE with a 3.3 V6 engine, there are several fuses that you can check if the front heat/air/defrost is not working. These fuses are located in the engine compartment and in the passenger compartment fuse box.
To check the fuses in the engine compartment:
Locate the fuse box cover on the driver's side of the engine compartment. Remove the cover by pressing in the tabs on the sides of the cover. Look at the fuse diagram on the inside of the cover or in the owner's manual to determine which fuses to check. The fuses related to the front heat/air/defrost are typically labeled "HVAC" or "Blower Motor." Use a fuse tester or a multimeter to test the fuses. If the fuse is blown, it will need to be replaced. To check the fuses in the passenger compartment fuse box:
Locate the fuse box under the dashboard on the passenger side of the vehicle. Remove the cover by pressing in the tabs on the sides of the cover. Look at the fuse diagram on the inside of the cover or in the owner's manual to determine which fuses to check. The fuses related to the front heat/air/defrost are typically labeled "HVAC" or "Blower Motor." Use a fuse tester or a multimeter to test the fuses. If the fuse is blown, it will need to be replaced. If checking the fuses does not resolve the issue with the front heat/air/defrost, there may be a problem with the blower motor or the HVAC system
Hi there,
Check the air con drive belt is still OK.
Check to see if there is a slight change in the engine sound when the air con is switched on and off while idling - I'd get someone to do the switching while I listened under the hood.
If there's no change in sound (assuming whatever had to be switched on to enable air con to go, eg fan was operating) I'd check the fuse(s) for the air con.
If the fuse is ok, and you've already charged up the freon (not quite sure what you were saying there), I'd be taking it to an air con specialist.
Possibly a broken AC switch. Possibly it is low on refrigerant. It is a good idea to determine if the air compressor is working, as well. The compressor clutch will not kick in if the gas pressure is too low.
may find hard to secure a diagrams. i suggest you to look directly the fuses especially air con fuse. you may find it at the driver side by opening the door. the fuse number is 17, 7.5A.
The coolant fan is run on a relay,which should be the same number as the horn try switching them out,does the a/c work? if the a/c won't engage then fans wont come on,next with engine off can you move the blades by hand? you need to determine if it's the fan or not unhook the fan and using jumper wires hook the fan direct to the battery and see if it runs if it does then check relays and wiring
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