Hi @Titus Bohanan,
Here’s a link to a service manual in which it details how to test the cooling system components, e.g. temp sender unit, fans etc.
I realize that it is not for your exact year model (it is for a 1998 -2002, couldn’t find it for your year model) but hopefully it will still be of some use.
See p.10-19 for the troubleshooting section regarding your problem with the radiator fans
According to the manual there is a radiator fan switch A and a radiator fan switch B and it suggests to check the circuit for radiator fan switch A when the symptoms are what you have, i.e. both fans (radiator and condenser) do not run for engine cooling, but they do run with the A/C on.
See p.10-7 for the coolant temp sender testing procedure to check if the sender unit is OK.
You will need a DMM (digital multimeter) as there is need for a Voltmeter and an Ohmmeter to perform the tests. Adequate DMMs are available from larger hardware stores for about $15-20. If you don’t know how to use a DMM get one that comes with a good user guide (some are woeful) so that it will be easier for you to understand and use. If you already know how to use a DMM, apologies.
To make reading the service manual easier, download the file to your computer. The download link is at the bottom of the Document page just to the right of where it says Zoom 100%
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